View Full Version : AVCHD -- new HD format from Sony & Panasonic


Pages : 1 2 [3] 4

Robert Wiche
August 6th, 2006, 01:57 AM
If AVCHD plays in blu-ray players, then it will not be an intermediate format. It has the same compression codec as blu-ray, Quicktime, and it is a broadcast compression standard.

It just depends on the data rate. If you want better color space, there will be avc-intra, which is avchd at more mbps.

I do not think hdv is that good. Audio is poor, as it is highly compressed.
Also: why use an outdated compression format (mpeg2), if you can have better image quality at a lower data rate with better audio.

Hdv cameras are not that mature a technology. They have poor autofocus (hc-1, hc-3, a1u) poor low-light (a1u), are much too big (fx-1).

It all depends on how good those new avchd camcorders are. Will we get enough manual control, acceptable low-light performance and an autofocus, that doesn't hunt like a neandertaler.

Douglas Spotted Eagle
August 6th, 2006, 10:45 AM
If AVCHD plays in blu-ray players, then it will not be an intermediate format. It has the same compression codec as blu-ray, Quicktime, and it is a broadcast compression standard.

Quicktime is a wrapper, not a codec. anything can be contained in a QT wrapper, including OGG, mp3, and at least a hundred other non-broadcast standards. BD has 3 codecs; AVC, MP2, VC1.


It just depends on the data rate. If you want better color space, there will be avc-intra, which is avchd at more mbps.

No, this isn't so. Intra is "Intra-frame" (intra-"contained within" vs inter-frame"("inter-"not contained within") which has nothing to do with colorspace, it's that each frame is essentially an I-frame. Color sampling remains the same.


I do not think hdv is that good. Audio is poor, as it is highly compressed.
Also: why use an outdated compression format (mpeg2), if you can have better image quality at a lower data rate with better audio.
4:1 is "highly compressed? I'll wager 100.00 I can put up a PCM file that has both the original, uncompressed audio, and an HDV file converted to PCM, and that you can't tell the difference.
Why use MP2? Because it's a LONG running standard, because there is a lot of support already existent for it, and because it's the same color sampling scheme as the largest delivery format in the world. One of the most overall common standard inside broadcast houses around the world with BetaSX, IMX.


Hdv cameras are not that mature a technology. They have poor autofocus (hc-1, hc-3, a1u) poor low-light (a1u), are much too big (fx-1).
This statement so absurd, I'm not even going to dignify it with a response. You apparently have never had the opportunity to work with the cameras. Additionally, who uses autofocus for anything but a spot requirement? (and in responding to that particular aspect, I'm not in the least agreeing the cameras hunt. Just last night I operated one of several HDV cams for Heroes of Speed. High speed action, lots of color, exceptionally fast motion; no hunting.


It all depends on how good those new avchd camcorders are. Will we get enough manual control, acceptable low-light performance and an autofocus, that doesn't hunt like a neandertaler.

It all "depends" is speculation, and speculation on a yet unannounced camera, speculative potential format, and unknown is just plain silly. I guess the national economy depends on a lot of things too, but I don't suppose you'd care to speculate on how many potatoes it takes to fill a truck in July vs January, thus affecting the cost of transportation, thus impacting the US economy? A lot of potential is dependent on a lot of "maybes" and speculating on "maybe" when there is a "here and now" is absurd.
Low light has zero to do with the compression. It has everything to do with how many pixels are being crammed into small real estate. All the low cost HD cams suffer from some kind of lowlight issue or another.
Autofocus has nothing to do with the compression, it's an algorithm.
Manual control? All of the professional grade HDV camcorders have great manual control excepting one.
NONE of your comments are related to HDV, but rather features of any camcorder at any price.

HDV isn't the best of the game, but it isn't remotely what you state either. Buck for buck, it's the best there is right now. AVCHD at current, is a consumer format.
I'm usually not this acerbic, but your commentary based on opinion rather than real world fact and experience is beyond the pale.

Pierre Barberis
August 7th, 2006, 01:00 AM
HDV isn't the best of the game, ........ Buck for buck, it's the best there is right now. AVCHD at current, is a consumer format.


Long Time No See, DSE.
It was just about time someone with undisputed authoritative experience fixed all those digressions. And though somewhat "irritated" ( rather than acerbic) these re-assesments were badly needed.

Thank you, DSE.

Lawrence Bansbach
August 7th, 2006, 07:27 AM
No, this isn't so. Intra is "Intra-frame" (intra-"contained within" vs inter-frame"("inter-"not contained within") which has nothing to do with colorspace, it's that each frame is essentially an I-frame. Color sampling remains the same.It just depends on the data rate. If you want better color space, there will be avc-intra, which is avchd at more mbps.Although AVC Intra is indeed a GOP-less format, there is speculation that Fidelity Range Extensions will be implemented for increased color-sample accuracy (10-bit encoding) and higher-resolution color information (YUV 4:2:2 and possibly 4:4:4). As far as I know, AVC-HD is restricted to 8-bit encoding and 4:2:0 sampling. So, while it's true that "intra" refers to the data reduction technique, Panasonic's AVC Intra format may also entail a greater color space.

Douglas Spotted Eagle
August 7th, 2006, 08:45 AM
As far as I know, AVC-HD is restricted to 8-bit encoding and 4:2:0 sampling. So, while it's true that "intra" refers to the data reduction technique, Panasonic's AVC Intra format may also entail a greater color space.

This is *potentially* correct. But then it's not AVC HD, it's simply AVC that departs from AVC HD at that point. It's entirely likely that a separate forum should be developed for AVC Intra, because for whatever reason, it appears a few professionals and most of the rest of the community are combining/confusing the two formats. AVC HD and AVC Intra have less than more in common, and I'd hate to see some poor guy reading about AVC Intra and then buying an AVC HD camcorder thinking he's getting anything broadcast-worthy.

Yi Fong Yu
August 7th, 2006, 08:52 AM
anyone know when this is going to be available so people can check out the visual quality?

Douglas Spotted Eagle
August 7th, 2006, 09:23 AM
anyone know when this is going to be available so people can check out the visual quality?

You mean AVC HD? Or AVC Intra?

AVC HD cams are out in pre-production models, and the shipping models are expected in the next month. As soon as we're released from NDA, we can put up footage.
AVC Intra, I don't have any knowledge of these products whatsoever.

Lawrence Bansbach
August 7th, 2006, 09:42 AM
This is *potentially* correct. But then it's not AVC HD, it's simply AVC that departs from AVC HD at that point.I believe that you are entirely correct -- AVC Intra is not AVC-HD but rather a separate format that is, as far as I know, proprietary to Panasonic. At this point, most "information" about it is speculative.

Yi Fong Yu
August 7th, 2006, 12:49 PM
hte one for consumers, which is intra- i believe.

i'm assuming the AVC-HD is for pros.

Lawrence Bansbach
August 7th, 2006, 12:56 PM
hte one for consumers, which is intra- i believe.

i'm assuming the AVC-HD is for pros.Reverse that. AVC-HD is primarily a consumer format, and Intra, professional. That said, AVC-HD, particularly at 24 Mbps and with 24p capability, may prove more than adequate for some professional applications.

Douglas Spotted Eagle
August 7th, 2006, 01:06 PM
That said, AVC-HD, particularly at 24 Mbps and with 24p capability, may prove more than adequate for some professional applications.

It could, but bear in mind that there are a LOT of other components to making the image worthy of professional use.
Prefiltering, DSP, glass, and a host of other related components and processes determine the majority of the image. All of those components add up in cost, and with AVC HD aimed at consumers, the goal is quality control and cost reduction, not a raise in quality that would carry a price level along with it.

Lawrence Bansbach
August 7th, 2006, 02:58 PM
It could, but bear in mind that there are a LOT of other components to making the image worthy of professional use.
Prefiltering, DSP, glass, and a host of other related components and processes determine the majority of the image. All of those components add up in cost, and with AVC HD aimed at consumers, the goal is quality control and cost reduction, not a raise in quality that would carry a price level along with it.The recently announced Sony models peak at about 15 Mbps, not the 24-Mbps maximum in the AVC-HD specs, and neither model supports 24p. So it appears that there will be AVC-HD quality "tiers" -- I was thinking about prosumer-level camcorders with these two features. At that level I would expect at lenses, imagers, ADC, etc, to be at least as good as those found on the Z1 or the HVX200.

Douglas Spotted Eagle
August 7th, 2006, 05:31 PM
The recently announced Sony models peak at about 15 Mbps, not the 24-Mbps maximum in the AVC-HD specs, and neither model supports 24p. So it appears that there will be AVC-HD quality "tiers" -- I was thinking about prosumer-level camcorders with these two features. At that level I would expect at lenses, imagers, ADC, etc, to be at least as good as those found on the Z1 or the HVX200.

There are no, and will not be, "prosumer AVC" camcorders from Sony for a long, long time to come.
It's ridiculous that any of this speculation ever came about (not pointing at you, Lawrence) about AVC in the professional world. It's a consumer format, was developed as such, and currently implemented only as such. More compression is not a good thing, it's a bad thing, overall.
Talking about comparisons of AVC vs HDV, is seriously misguided, particularly when discussion of AVC-I comes into the mix. It's all conjecture, and from my own viewpoint, it seems like an attempt to divert focus from one format to another, even though the "other" format is mere conjecture and non-existent at this point in time.
It's frustrating, because while it's apparent folks want more picture for less cost, AVD HD is * not* the answer. There are a lot of problems with it as a broadcast format in it's current inception, ranging from the complexity of the deblocking algorithms to the bitrate, etc. It's even more frustrating to see discussions of AVC-I come into the AVC HD discussions. *IF* AVC-I comes to fruition, it will first likely be based on the consumer codec, as development of a new compliant codec will be so expensive it would easily put the cam out of cost-range for most, and second, once it is out in whatever inception, it will be more in the mid-camera price range, I'll wager, even if based on the consumer codec.
For some reason, folks seem to tie much of the AVC HD excitement back to "MPEG sucks."
No, MPEG doesn't suck, *some* MPEG encoders suck. For the most part, there is no spec for MPEG encoding . From HDV to HDCAM SR, MPEG is in constant production use, whether it's Canon, JVC, Sony, or others using this format. The temporal compression allows for big frames (in other words, full size frames) as opposed to other popular formats that have small frames that are then expanded on output or in post, using header information to control the conversion. This is why some formats are seen as "soft" by many folks vs what the HDV camcorders offer.

AVC HD is a great little format, designed for delivering very good quality content over small bandwidth, which makes it easy to store on mem sticks, microdrives, 3" DVDs, and other consumer-friendly formats. It's incredibly efficient, very cheap codec to license, and "good enough" for consumer use without a lot of processing for acquisition.
When the Sony cams start shipping, it's expected you'll see a lot of comparison to the HDV output, and I just hope a lot of folks are not disappointed if they're waiting to make decisions on whether to buy a Sony, Canon, or JVC HDV camcorder over the Sony AVC HD camcorders for professional or semi-professional use. Based on what I'm seeing, they likely will be.

We *really* need to get an AVC-I forum going, because discussion of AVC-I in this forum is like discussing XDCAM HD in the HDV fora. It's confusing, and is leaving more questions than answers for some folks.

Barry Green
August 7th, 2006, 06:36 PM
never mind...

Douglas Spotted Eagle
August 8th, 2006, 02:28 AM
AVCHD is only up to twice as efficient at low bitrates. Once you hit 18Mbps or so, efficiency is not tremendously different than HDV or any other MPG-derived format. The efficiency by comparison diminishes as bitrate rises. Processing coefficients become more challenging, processing horsepower goes up substantially. All things considered it actually becomes less efficient overall at high bitrates. With current development, the gains don't offset the costs. But, like anything else, this is likely to change.

It's significantly more compressed than HDV or any other heretofore format. This presents problems. Have you attempted to edit AVC HD yet?
Try it. You're throwing away more information than ever before, and complex frames suffer if you keep the spatial values intact.

The audio benefits significantly in the AVC format, since there aren't any significant restrictions on audio formats for MP4 and audio isn't interleaved as it is in HDV. That said, I've not run into any of the heavily purported audio problems that some assign to HDV.

Press releases from Sony are press releases from the consumer division of the company. You know that just as well as I do. Bending words doesn't benefit anyone.
Sony Broadcast didn't do a press release for the HC1, HC3... the consumer division did. Just as the same division announced the AVC HD format. Sanyo says "We're redefining High Definition...." Would you suggest we accept the HD1 is "redefining" HD in the professional or prosumer realm?

Will AVC grow? Obviously. Will it be the current AVC-HD profile as the foundation? Maybe. Will it be AVC-I? Perhaps. Dunno. Way too early to tell.

But the bottom line for now is that AVC HD as it stands is a budget format. It might grow into something else, I hope it does.

All that said, I do understand the position; Panasonic desperately needs this story to offset the small frame antiquated format of DVCPro and it's DV-based variants.
It's likely ill-affordable to create their own codec and expect to develop a competitively priced camcorder. They need something that will record to P2 and other static media easily in big frame format, so AVC becomes a logical answer. Of course they need to champion it as it's another opportunity to bash MPEG 2. Ironically, AVC is a subset of the MPEG 2 that's been bashed for the past two years. More ironic is that the 4:2:0 colorspace is now acceptable when for the past two years, it hasn't been acceptable.

Regardless of what you or I say, feel, want, or believe....AVC HD is at this time is aimed squarely at low-cost buyers and non-professional user. Neither of the two announced camcorders have professional features included. I can say with at least some surety that Sony, Canon, JVC, Grass Valley, and Ikegami aren't doing anything with it on the professional/semiprofessional side at this point, but I'm equally confident you're speaking for Panasonic, and they're a big player (Grass Valley's MPEG 4 is not AVC).
We might as well be discuss MPG 7 and MPG 21-based camcorders too. After all, they're part of the various future mpeg profiles too. If we're relying on conjecture to generate a new market or discourage users from a current market, we might should go deeper into the realm of "maybe."

Next year, the year after...AVC HD or one of it's variants could be the new DV. A lot could happen in the next 24 months. But the issue we're faced with here, now, and in this particular forum, is that folks are being grossly mislead about what AVC HD currently is, and what it will be for at least some time to come. It's currently only leading to great confusion.

Bob Zimmerman
August 8th, 2006, 07:16 AM
I have the money to buy and I will by the time the new Canon's come out. It looks to me like HDV is pretty well dug in for now. I've seen some really good stuff shot with the Z1U. I'm sure this canon will be there too.

I think Panasonic made a mistakes by not having a DVX100 type camera with HDV. They bet on P2 but the cost is just to high for a lot of people. If they would have came out with a 16:9/SD/HDV they would have sold like crazy.

When you hear the AVCHD talk it is usually just to make HDV look bad. It's once AVC comes out HDV will dry up and blow away. But if it is that good so will the SD DVX100 and all other SD cameras.

I will spend my money now on the Canon A1 or maybe if Sony comes out with
something new by October.

Chris Hurd
August 8th, 2006, 07:25 AM
I think Panasonic made a mistake by not having a DVX100 type camera with HDV.Well they *couldn't* make a DVX100 type camera with HDV, because they're not part of the HDV consortium. So I think what you meant to say is that Panasonic made a mistake by not choosing to be part of the HDV consortium. I don't see that as a mistake. They're selling the HVX200 faster than they can build it. Seemingly Panasonic choose to skip HDV altogether for their own reasons, for better or for worse. It's only a "mistake" if it affects their solvency, and I don't believe Panasonic is about to collapse as a result of not offering HDV.

Stu Holmes
August 8th, 2006, 01:52 PM
There are no, and will not be, "prosumer AVC" camcorders from Sony for a long, long time to come.With every respect Douglas, you have been wrong before, so there does remain the possibility that you may be wrong again, and pigs may once more take to the skies:

http://www.dvinfo.net/conf/showpost.php?p=437936&postcount=21

regards

Bob Zimmerman
August 8th, 2006, 02:54 PM
Well they *couldn't* make a DVX100 type camera with HDV, because they're not part of the HDV consortium. So I think what you meant to say is that Panasonic made a mistake by not choosing to be part of the HDV consortium. I don't see that as a mistake. They're selling the HVX200 faster than they can build it. Seemingly Panasonic choose to skip HDV altogether for their own reasons, for better or for worse. It's only a "mistake" if it affects their solvency, and I don't believe Panasonic is about to collapse as a result of not offering HDV.

I think they miss some sales by going the P2 route, but if you say there selling bunches of them that's good. But the prices to run one is to much for a small timer like myself,,,so they really screwed up!!

I guess none of these companies can please everyone. I'll just be glad to have something again in the next couple of months.

Lawrence Bansbach
August 8th, 2006, 03:04 PM
Not to challenge you, Douglas, but you seem to be painting AVCHD with an excessively broad brush in your attempt to portray it as a consumer format. A few points:

Nowhere on the AVCHD information site is the format called a consumer-only format.
The current AVCHD specs are at 1.0; since May they have been revised (Memory Sticks, SD memory cards, and hard disk drives have been added as storage media and the maximum data rate has been raised to 24 Mbps). Who knows when subsequent versions of the specs will be released or what they will contain?
The spec supports 24p for both 720p and 1080i. There's no real need for 24p in a consumer camcorder, especially given the complexity of inserting 24p into an interlaced signal. Any arguments for 24p in HDV camcorders were made with an eye toward professional applications, specifically film release.
AVCHD is nascent, and judging its quality -- or predicting its future -- based on Sony's inaugural camcorders would be silly.
You say "once you hit 18Mbps or so, efficiency [of AVCHD] is not tremendously different than HDV or any other MPG-derived format." Again, I would think it premature to judge the potential of format from the quality of a consumer camcorder. AVC (a.k.a. H.264 and MPEG-4 Part 10) is a wide-ranging set of specifications of which the current incarnation of AVCHD is only a small part. Whither AVCHD? I don't know, but if you do, please share (that is, when your NDA expires).
"Press releases from Sony are press releases from the consumer division of the company. You know that just as well as I do. Bending words doesn't benefit anyone. Sony Broadcast didn't do a press release for the HC1, HC3... the consumer division did. Just as the same division announced the AVC HD format." The initial products, which don't support even the full range of the current spec, are obviously targeted at consumers (albeit relatively well-heeled ones), so I would expect the first press releases to come from the consumer division. But I wouldn't use Sony as any indicator of whether AVCHD has a future as a prosumer format. Sony will be the last company to add a usable 24-fps feature to an HD camcorder costing less than $10,000, so I don't doubt that Sony will wait a long time before releasing a 24-Mbps, 24p-capable, third-inch CCD/CMOS chip camcorder.
Editing AVCHD might currently be a bitch. The same situation held at release of HDV. It's very, very stupid of manufacturers to release a format before they line up software-vendor support, but it happens.

Barry Green
August 8th, 2006, 04:14 PM
DSE, I tried to delete my response before you responded because I didn't see the point in making things too directly confrontational. In the end if you feel the way you do, that's fine, but I cannot agree as to how you can project that forward onto an entire industry.

It just doesn't make sense. It's not logical. When AVC is a more-efficient codec, when it does things that HDV doesn't, when the whole production industry is beginning to go tapeless, why would anyone say "well, the tapeless more-efficient full-raster uncompressed-audio codec is only suitable for consumer product; professionals would much rather have an older, less-efficient compressed-audio tape-based system." It just doesn't make sense. I mean, we don't have to agree, I guess; let's just see what happens with AVC-HD.

For my part, I am extraordinarily confident that when the dust settles, AVC-HD will be "the new DV", and HDV will be relegated to a blip in history, equivalent to Hi8. And I think the current Sony AVC-HD offerings have about as much to do with the format as the original HDV camera (the JVC HD1) did to its format.

To look at the UX1 and say "see? AVC-HD is only a consumer format" is grossly unfair. I mean, would you also think it fair if one was to go back to March 2003 and say "HDV is a marginalized consumer format and that's all it'll ever be, look at the JVC HD1"? Such talk would have looked rather silly the day the Z1 came out, and then the HD100, and then the XLH1.

History has an uncanny habit of repeating itself. And it will again. AVC-HD is the real deal.

I'm almost tempted (almost) to just predict that Sony won't ever release another HDV model already, I'm almost ready to say that the FX2 will be AVC-HD, and by extension the Z2 would also be AVC-HD... only reason I don't go ahead and do so is because Canon just threw a monkey wrench in the works with their A1/G1 introductions. So there may be a couple more HDV models before the transition to AVC-HD is complete. But I am certain that by this time two years from now (8/8/8) HDV will be officially discontinued by Sony, in the terms that no new HDV models will be introduced from that date forward. And I predict that Sony Broadcast will follow suit; you won't see any HDV models from the Sony Broadcast division being introduced two years from now.

David Ziegelheim
August 8th, 2006, 04:59 PM
My guess is they are losing some sales by using 960x540 CCDs. Their format should have but them way ahead of HDV storage, yet the tests just show it competitive with the HD100 and H1. It has to be one of the best SD 16:9 cameras though.

Greg Boston
August 8th, 2006, 05:28 PM
To look at the UX1 and say "see? AVC-HD is only a consumer format" is grossly unfair.

Barry and All,

I can't speak for DSE, but I partly know why he is saying this. It's because Sony people are saying this. Sony's official position is that AVCHD is a consumer format. Their words, not DSE's. I witnessed this personally at the Apple/Sony XDCAMHD event in Dallas. Mike Curtis was also in attendance and can verify what I am saying.

A question came up along the lines of whether a future XDCAM HD offering might use AVCHD and the Sony person immediately responded with, "AVCHD is a consumer format." No ifs, ands, or buts about it. A very direct answer with no hesitation whatsoever. But they are referring to the current incarnation of AVCHD. Any variant of this could become a reality for prosumer or broadcast work in the future but then it's not AVCHD anymore.

But the AVCHD that's of the here and now is considered a consumer format by Sony. Other manufacturers may feel differently about that.

regards,

-gb-

Guy Bruner
August 8th, 2006, 05:57 PM
This thread is really funny. AVCHD will be consumer until the pros start using it. Then, it will be pro. Just like DV, just like HDV. And, I predict pros will start using it just about as soon as the camcorders become available. So, this whole debate is moot.

Lawrence Bansbach
August 8th, 2006, 06:20 PM
Any variant of this could become a reality for prosumer or broadcast work in the future but then it's not AVCHD anymore.The most you could say is that it's not AVCHD version 1.0 anymore. But then again, that spec was amended less than 2 months after it had been announced to permit a higher data rate and a greater variety of storage formats. That being said, just implementing the full 24-Mbps data rate and supporting 24p would go a long way toward making it suitable for broadcast/prosumer work. And as for editing ACVHD, I'm sure CineForm is working on a visually lossless intermediate codec.

Greg Boston
August 8th, 2006, 09:35 PM
The most you could say is that it's not AVCHD version 1.0 anymore. But then again, that spec was amended less than 2 months after it had been announced to permit a higher data rate and a greater variety of storage formats. That being said, just implementing the full 24-Mbps data rate and supporting 24p would go a long way toward making it suitable for a broadcast/prosumer work. And as for editing ACVHD, I'm sure CineForm is working on a visually lossless intermediate codec.

No argument. In my post above, I was emphasizing Sony's stance on the current implementation.

-gb-

Thomas Smet
August 9th, 2006, 01:35 AM
I think you are all right. SONY may have said that AVCHD is a consumer only format but that doesn't really mean anything.

DVCAM is virtually the same as DV but yet DV is considered consumer while DVCAM is pro.

We must remember that AVCHD is just a fancy title given to a form of profile and level of mpeg-4. It is the same thing as how HDV is a fancy name and special setup of a Main profile/high 1440 level mpeg-2 file. HDV is limited to a certain bitrate but mpeg-2 can do so much more. In fact I have been working on using 422 profile/high level 100 to 300 mbits/s mpeg-2 I frame files with Liquid systems for real time close to uncompressed editing.

Even if AVCHD stays as a consumer format I'm sure AVCHDCAM (totally made up) will not. All you have to do is change the name but still use mpeg-4 level 10. SONY doesn't own mpeg-4.

If HDV means it must be on tape but a firestore is used does that mean it is no longer HDV? Who cares? The format is still exactly the same.


Finally about editing AVCHD. Yes it will be a major problem for a few years but I think there will be solutions.

1. Cineform should work exactly the same with AVCHD as it does with HDV. You might need a slightly faster system to convert AVCDHD to Cineform on the fly but as long as your system can play AVCHD I would think it could convert it with no problems. Once on your system as a Cineform file it will edit exactly the same way as HDV in a Cineform file. So the only hurdle to overcome for Cineform is live transcoding into a Cineform AVI.

2. Finally a good case for why somebody would capture the format through component or SDI as uncompressed or lightly compressed. The advantage to this is that you will be able to edit the material much faster and you will not have to wait to transcode it to another format. While the quality will not get any better it will not really get any worse either. Since AVCHD is in theory so much better looking than HDV capturing to uncompressed HD or lightly compressed HD should allow you to hang on to that quality while saving you some of your hair. Uncompressed HD systems and capture cards are becoming very cheap and I don't really see it as a major concern anymore. If you do not want the large drives then just use DVCPROHD or photojpeg. It might not be perfect but it should look better than HDV.

3. Forget about Cineform if you do not want to buy it. Since mpeg-4 is a much more open standard and can be encoded and decoded easily in quicktime just transfer the files and convert to photojpeg or something like it with Quicktime pro. You could even use a tool or write a script to convert all the files. Yes it may take extra time, but it will take less time then trying to edit the stuff.

Bruno Donnet
August 9th, 2006, 02:21 AM
We must remember that AVCHD is just a fancy title given to a form of profile and level of mpeg-4. It is the same thing as how HDV is a fancy name and special setup of a Main profile/high 1440 level mpeg-2 file. HDV is limited to a certain bitrate but mpeg-2 can do so much more. In fact I have been working on using 422 profile/high level 100 to 300 mbits/s mpeg-2 I frame files with Liquid systems for real time close to uncompressed editing.
Even if AVCHD stays as a consumer format I'm sure AVCHDCAM (totally made up) will not. All you have to do is change the name but still use mpeg-4 level 10. SONY doesn't own mpeg-4.
100% agree with Thomas.
The history repeats itself: when the first DVD camcorders were announced, a fast death was predicted for the DV format, and Mpeg-2 was presented as the perfect 'all-purposes' codec.

Today, DV is still alive, Mpeg-2 is used by consumers and by professionals on all the channels and supports: Satellite, cable, tape, HDD, DVD,...etc

Tomorrow Mpeg-4 AVC (aka Mpeg-4 part 10, aka H.264), and other new Mpeg-4 variants (like for mobile phones) will replace Mpeg-2 everywhere.

AVCHD is only a marketing name and, IMHO, people make too much noise around this acronym: the real winner of the next years is Mpeg-4 AVC whatever are the 'names' of its perticular implementations.

Bob Zimmerman
August 9th, 2006, 06:30 AM
How far off is tomorrow?

There seems to be some product bias going on here but that is good.

Can anyone who claims that AVCHD is the new format that will wipe out HDV and I guess SD too, when a good pro-sumer model will be out? When will a pro model be out? When will there be editing software? Are we talking two years? Four years? By Christmas?

When will the DVX100B start selling cheap because they are so outdated? If I buy the Canon A1 in Oct will it be like my old Sony Hi 8 (by the way mine still works and you can still by tapes) bye next year?

Kevin Shaw
August 9th, 2006, 07:36 AM
Can anyone who claims that AVCHD is the new format that will wipe out HDV and I guess SD too, when a good pro-sumer model will be out? When will a pro model be out? When will there be editing software? Are we talking two years? Four years? By Christmas?

I'd say it's still early in the game for AVC, so at least 18 months before it's a fully functional format for professional purposes and another couple of years after that for it to become as popular as HDV is today. Note that Canon just released their first affordable HDV cameras roughly three years after the format was originally proposed, so figure a similar timetable for AVC.

When will the DVX100B start selling cheap because they are so outdated? If I buy the Canon A1 in Oct will it be like my old Sony Hi 8...bye next year?

What, people are still selling and buying SD cameras? At some point that's bound to taper off for professional purposes as customers come to expect HD recording, and long after that happens you'll still be able to buy tapes for HDV cameras. Any HD camera is more likely to still be in use ten years from now than most SD cameras, sort of like how any DV camera is more likely to be in use today than Hi-8 models.

Kevin Shaw
August 9th, 2006, 08:06 AM
I am extraordinarily confident that when the dust settles, AVC-HD will be "the new DV", and HDV will be relegated to a blip in history, equivalent to Hi8.

Maybe so, but by the time that happens HDV will be a pretty big blip, and many HDV cameras will remain in service until they wear out. If AVC becomes more popular it may be more because of its tapeless workflow than anything else, and that won't be cost-effective and convenient for at least another 3-5 years. So yeah, several years from now when we can buy 64GB flash memory cards for under $25 then HDV may seem a little dated; until then let's not be too quick to dismiss one of the most clever video recording formats of the past 50 years.

Thomas Smet
August 9th, 2006, 08:13 AM
It will be interesting to see how well AVCHD does in the consumer world.

On one hand it might give very nice quality even though the cameras will still be lacking. The image quality itself should better mimic what the camera head itself can do.

On the other hand it may end up a niche product that will be very hard for consumers to edit and may not take off for a few years yet. While there may be methods to edit that I listed above I doubt any consumer would do any of those except for maybe option 3. Would a consumer know how to deal with this or even want to deal with it? It might seem like a nifty idea but in the end it may put them off because of the workflow involved.

The nice thing about HDV is that it does have the option of down converting in camera to a format consumers are used to dealing with. What options are there for AVCHD? Since it is file based I doubt there is any way to let the camera do it for you.

AVCHD should have really had a proxy system built in like XDCAMHD does. The cameras and NLE's should have had automated built in support for the proxy files. The consumer could build an edit with the proxy files and then let the NLE handle the final stage. This would make AVCHD much easier to use for the consumer.

Remember the consumer market isn't always driven by quality but a lot of times by ease of use. It might be easy to shoot with these things but it will not be as easy to do anything else with it.

Barry Green
August 9th, 2006, 09:37 AM
On the other hand it may end up a niche product that will be very hard for consumers to edit and may not take off for a few years yet.
When we had vhs vs. betamax, it took years for the "format war" to settle and for people to buy in.

When we had everyone on the same page for CD, and for DVD, (i.e. one unified global standard) the adoption rates were the fastest in history.

Now that we have HD-DVD vs. blu-ray, everyone's waiting and unsettled.

With HDV you basically have the same situation -- Canon vs. Sony vs. JVC, and all of them vs. Panasonic. HDV is not one unified standard, it's three incompatible formats from three different manufacturers, with about the only concession to intercompatibility being that Sony tapes will play in Canon cameras (and 1/3 of Canon's formats will play in Sony's cameras/decks).

With AVC-HD, we have the two biggest players on the same page, the two manufacturers that account for something like 80% of all consumer camcorders sold. With AVC-HD we're not talking about "this vs. that", you're talking about one standard unified compatible format across the board. If this were a Sony-only format, or a Panasonic-only format, I wouldn't be nearly so bullish on it. But because it's sponsored and promoted by both behemoths that's why I think it's inevitable.

Second, as far as editing: obviously there's no editing support yet. But did anyone find it curious that Sony didn't introduce Vegas 7 at NAB? Could it perhaps be that they're holding it to announce AVC-HD support? Did anyone else find it curious that there was no major Apple FCP announcement at NAB? Could it be perhaps that they're holding it to integrate AVC-HD support?

As for HDV editing, that's hardly a settled question. Some editing programs have various levels of support for HDV; everyone supports 1080/60i and 720/30p, a couple have some support for 1080/24f, and one or two have some support for 720/24p, but support is hardly universal. Why? Because the market is tiny. Prosumer/HDV cameras have sold a few, but nothing compared to what consumer cameras sell. I mean, in the world of JVC, JVC Professional accounts for only 8% of all the revenues JVC generates, and JVC Consumer accounts for something like 52% (don't remember the exact number).

On the other hand, everybody supports DV. DV is the prevalent, dominant format. DV is supported by every manufacturer, and every mode of DV is compatible with every manufacturer's equipment, something that can't be said for HDV. But AVC-HD is designed to be the same type of intercompatible system as DV. One unified worldwide cross-manufacturer standard.

In other words, exactly the kind of thing NLE manufacturers want to hear.

And ATI and nVidia are already talking about including H.264 hardware chips on their graphics cards, which will take a huge burden off of the editing computer's CPU.

So yes, NLE support is unannounced right now. But all the chips appear to be lined up in the right way, in the right places, to point towards positive things happening.

The nice thing about HDV is that it does have the option of down converting in camera to a format consumers are used to dealing with.
Only in Sony products. No JVC or Canon HDV camera can do that.

Bob Zimmerman
August 9th, 2006, 11:55 AM
Barry I just bet when AVCHD comes out it will also shoot SD too. Just like now we have SD/HDV or even the HVX200 has SD. AVCHD might be out done in a few years, but I bet we still have tape SD video.

Sharyn Ferrick
August 9th, 2006, 04:07 PM
One factor that could really move AVCHD along in acceptance would be if standard red laser dvd players were to have playback ability. AVCHD and VC1 are very close, and Microsoft was pushing for support in devices other than pc's and blu ray/ hd dvd devices. Problem is that digital rights got in the way and so now you have AVCHD and VC1 more closely tied to BD/HD players, so you do have a chicken/egg type situation.
The chip sets to decode the AVCHD are likely to come along if in the broadcast set top box market we see a move away from Mpeg2 to this format. AVCHD's origins were more in the broadcast distribution side of things than acquistion
Sharyn

Douglas Spotted Eagle
August 9th, 2006, 09:55 PM
How far off is tomorrow?

There seems to be some product bias going on here but that is good.
?

I would tend to agree.
Here's how I see it.

Sony, one of two licensees of the format, says unequivacobly that AVC is a consumer format, both officially and in conversation. Greg is spot-on, no pun intended.
Here in Malaysia, one Panasonic person, in conversation, said the same although I don't consider that remotely close to any kind of a corporate statement.

One manufacturer, and all of their evangelists have screamed from the top of the mountains how bad MPEG and 4:2:0 is, how poor 25Mbps data rates are, and how weak temporal compression is for the past two years.
Canon, Sony, and JVC have all disputed that, and for the most part, HDV has been embraced worldwide to the tune of well beyond a quarter million units in only two years. Canon and JVC have both recently announced new HDV models, which further demonstrates a level of commitment.

Now, some evangelists for that same manufacturer that vehemently denounced HDV claim that a subset of the MPEG 2 format, that is more greatly compressed, same color space, less datarate is not only acceptable, but better. I'm failing to comprehend how that could possibly be so? The only serious benefit of one over the other is that audio is not muxed in the MPEG stream, allowing it to be any format. PCM, OGG, MP3, AC3, you name it, it can be there. Including 24 bit, 96K PCM or some compressed variant that doesn't currently exist. But saying that MPG2, 4:2:0 color, 25Mbps is "bad," but it's subset of greater compression, same colorspace and lesser bitrate is "good" is very confusing to me.

AVC HD has many profiles. The currently offered product profile is a non-professional quality. We all know that will eventually change. AVC includes profiles that allow for 4:4:4 color sampling and 10bit depth as well. Will those profiles be used? Absolutely. Otherwise, why do they exist? The question isn't "if" but "when." And I submit the when is a longer way off than folks are being led to believe. Incidentally, all this talk of "twice as efficient" is relevant only to low bitrates. As bitrate goes up, like anything else, efficiency begins to rapidly fall.

Moreover, having worked with the format, regardless of the HDI used, the current crop isn't ready for primetime yet. Captured as 4:2:2 uncompressed using an AJA card, that's a different story. Also not a sweet story for most users. Additionally, I'd like to know why the comparisons of AVC are constantly made only to HDV? Why not compare them to DVCProHD? Especially when discussing AVC-I, as that's a much more appropriate comparison.

I've never said the *format* can't manage growth, just that the current crop of camcorders are consumer.
How many formats have ever once approached maxing out their possibilities?

AVC will grow, of that I have zero doubt, and information to the contrary. But to deliberately throw red herrings into a discussion of the current crop of shippable camcorders (which would currently be ONE model) is wrong, IMO.

David Ziegelheim
August 9th, 2006, 10:51 PM
Ok, there are probably two things here. The Panasonic/Sony is a version of HiP/Level 4 encoded in an MPEG 2 Transport data stream. Isn't that the same data stream used for HDV?

H.264 doesn't cover the transport mechanism, so the combination, along with the support for specific audio channels, there is a new standard for a consumer HD format. Probably comparable or even superior to HDV formats.

However, what a lot of other people are adding, is the ITU-T H.264, also known as AVC and ISO MPEG4 Option 10, includes specs for a 10-bit 4:2:0, 4:2:2, and 4:4:4 encoding. This encoding holds the promise for a higher quality, lower bandwidth successor the DVCProHD and an equivalent capablity for non-Panasonic cameras. This could be recorded to solid state media, such as a P2 card, hard disk, or optical disk. It is possible (likely?) that 5.25 Blu-ray disk with 2008 technolgy would be able to store 3-4 hours of 10-bit 4:2:2 recording in real time. What the H1 and HD100 have shown is that sensor resolution does count and can be more important that recording format (which Panasonic should have won hands down, at least from a quality viewpoint). Hopefully the next generation of cameras will all have high resolution sensors.

This could mean the availablity of some very nice, hopefully affordable high resolution HD cameras with inexpensive, high resolution, highly portable recording in the next 3-4 years. That is about the same time frame from the introduction of the DVX100 to the present time.

Barry Green
August 9th, 2006, 11:10 PM
Canon and JVC have both recently announced new HDV models, which further demonstrates a level of commitment.
So, to delve further into this, are you saying that you believe Sony will be introducing more HDV models? Interesting. I still think that if they do, it won't be for long. Unless you think broadcast will completely diverge from consumer, unlike Sony's recent past (PD170/VX2100, PD150/VX2000, PD100/TRV900, PDX10/TRV950, PD1/TRV9?, Z1/FX1 etc). It is very clear that Sony Consumer has said that AVC-HD is the the format they'll be pushing in the future, so presumably an FX2 or later will be AVC-HD based. Are you saying that you think if an AVC-HD FX2 came out, then the accompanying Z2 would eschew AVC-HD and would actually install a tape and be HDV-based? I guess that could happen, but frankly I just don't see it.

As for future commitments from the other manufacturers, Sharp has never produced any HDV models, and Canon has (as far as I know) expressed interest in AVC-HD. As for JVC, there was one interview where Matsushita said that JVC would not be producing any AVC-HD products.

Now, some evangelists for that same manufacturer that vehemently denounced HDV claim that a subset of the MPEG 2 format, that is more greatly compressed, same color space, less datarate is not only acceptable, but better. I'm failing to comprehend how that could possibly be so?
Well, let's clarify a few facts instead of resorting to spin, please. First, I never said AVC-HD was "acceptable"; I'm an intraframe kind of guy and don't care for temporal compression at all. But I acknowledge that many people have found HDV acceptable, so for THEM, I would think they would find AVC-HD more than acceptable. And whether they or we find it acceptable is largely irrelevant, as the two dominant behemoths have declared AVC-HD is going forward (and besides them, a few others who have standardized on AVC include HD-DVD, blu-ray, NHK, BBC, DirecTV, DISH, the DVB, France, Estonia, Lithuania, Brazil, Tokyo Broadcasting System, Nippon Television, TV Asahi, Fuji Television, TV Tokyo, Euro1080, Premiere in Germany, ProSieben HD and Sat 1 HD, SkyHD, Sky Italia, USDTV, 3GPP, the Motion Imagery Standards Board of the US Department of Defense, NATO, the Internet Engineering Task Force, and lots of others at least according to Wikipedia).

Like it or not, embrace it or not, it's here and it's going to be huge.

But the concept that it's "a subset of MPEG-2" is completely erroneous, it's an unrelated compression system which has been lumped under the category of MPEG-4 Level 10, but has little to nothing in common with MPEG-2. Second, it's the same color space, yes, which I also find less than desirable. But how can you completely gloss over other, very viable improvements? Dude, I know you love your HDV, but come on...

AVC-HD is full-raster. This is not an improvement?

It's over twice as efficient in encoding. This is not an improvement? (talk about "at lower bitrates" all you want, but it is substantially more efficient than HDV)

It's uncompressed audio, at up to 7.1 channels. This is not an improvement?

And, it's open-standard. You gotta love that.

AVC-HD is everything HDV is, with better/more efficient compression, full-raster recording, and uncompressed audio. In every possible comparison it comes out ahead of HDV, except for 4:2:0 and long-gop structure (where it ties). What I've always said is: if someone finds the 4:2:0 and long-GOP nature of HDV acceptable, why wouldn't they be happier with the same color sampling, the same long-GOP nature, but more efficiency (which makes it about the equivalent of 36-megabit HDV), full-raster recording, uncompressed audio, and native 24p support?

The only serious benefit of one over the other is that audio is not muxed in the MPEG stream, allowing it to be any format.
Well, this shows me that you don't understand the excitement over the AVC-HD format at all, if you think that's the only serious benefit.

The first, #1, most-important, serious benefit to AVC-HD is: it's compatible! HDV is not. Can't you see that as a massive improvement? Cross-manufacturer, cross-platform, cross-industry. No more decks that will only play one format but not the other, etc. This is a MAJOR improvement.

Second, it's tapeless, which is the way things are going. To some of us, that's a massive improvement. I understand there are those who will cling to their tapes until the end, and that's fine, they're welcome to them. But there are very valid benefits to going tapeless.

Third, it's a better codec, and I can't fathom any respectable engineer arguing otherwise. 18 megabits of H.264 will deliver a substantially better, more robust image than 25 megabits of MPEG-2 any day of the week, and will be more resistant to motion artifacts or other issues.

Fourth, it's endorsed by both major manufacturers. It's not a "format war" within itself. That can only be viewed as a good thing.

But saying that MPG2, 4:2:0 color, 25Mbps is "bad," but it's subset of greater compression, same colorspace and lesser bitrate is "good" is very confusing to me.

Because a) that's a straw man argument, I don't know that I've ever said 25mbps of 4:2:0 MPEG-2 is "bad". I've said it's amazing for what it is, that it usually looks surprisingly good, and that it's a fantastic technical achievement. But that I don't trust it because it can and does fall apart in certain circumstances and I won't risk it. Some will, that's fine. Some have, got bitten, and abandoned it (like Monster Garage and WETA/Kong).

Second, I haven't said that AVC-HD as a format is "good" either. I've said that it will replace HDV, and it will. I have said that it's better than HDV, and it is, in every measurable way except the camera heads that are currently using it. That doesn't mean that I think it's appropriate for professional use, but I do think it will prove better and more acceptable than HDV was once there's a camera out that does it justice. Whether it crosses the line to "good enough" still remains to be seen, but obviously different people place that line at different threshholds.

Additionally, I'd like to know why the comparisons of AVC are constantly made only to HDV? Why not compare them to DVCProHD?
Because AVC-HD and HDV are animals of the same kind, and DVCPRO-HD is an animal of a different kind. I would compare a 4:2:0 long-gop codec against a 4:2:0 long-gop codec as those are animals of the same kind. I wouldn't lump a 4:2:0 interframe long-gop codec against a 4:2:2 intraframe-only codec because those are animals of a different kind.

DVCPRO-HD would be more fairly compared against an intraframe codec like AVC-Intra. And that day will come, and I don't doubt that AVC-Intra will come out ahead in that comparison. Phil Livingston already said that the 50-megabit AVC-I looks as good as the 100-megabit DVCPRO-HD, while still being intraframe-only.

I've never said the *format* can't manage growth, just that the current crop of camcorders are consumer.
What you've said is that AVC-HD is only a consumer format and I'm pretty sure I've read where you've said it will only ever be a consumer format. And that's the part I disagree quite thoroughly with; I say that the current Sony cameras are consumer-only yes, but that someday someone is going to produce a camera head worthy of the format (such as a Sony Z2 or a Canon XLH2) and when they do, AVC-HD will not be pigeonholed as a "consumer format." It's a better format than HDV, and sooner or later some manufacturer is going to say "hang on... why don't we make an AVC-HD version of this camera instead of just using HDV with it" and that's when things will start to get very, very interesting.

How many formats have ever once approached maxing out their possibilities?
BetaSP and DV, for two. I'm pretty sure that you can't extract much more out of BetaSP than the BVW600 got from it, and I can't imagine there's much left in DV that an SDX900 can't get from it. But it took years to get there, obviously the first crop of BetaSP and DV cameras didn't come close to maxxing out their format's capabilities.

But to deliberately throw red herrings into a discussion of the current crop of shippable camcorders (which would currently be ONE model) is wrong, IMO.
Hold on there a minute. Who's throwing out red herrings? This is a thread for discussing THE FORMAT, not for discussing the current crop of underpowered consumer cams that Sony has saddled the format with. There are other threads and other forums for discussing the UX1 and comparing it against current HDV offerings or whatever. In this thread (at least judging by the title of this thread) we were supposed to be discussing the format itself. If anyone has done anything "wrong" (wrong? "morally and ethically incorrect?") by discussing a format and its potential... well... sorry, can't see eye to eye on that one. Especially since we have plenty of history to base that discussion on, having seen how HDV was introduced, the first product having been an ultra-consumer format, people saying it's "consumer only", then the FX1/Z1 hit and people changed their minds. Seems eerily familiar to me.

David Ziegelheim
August 9th, 2006, 11:42 PM
Everything I've read has indicated that H.264 is a much better compression algorithm than H.263 and MPEG2. Since AVCHD is being encoded at about the same bit rate as HDV (please correct me if I'm wrong), the image should be better. Especially around motion.

A quick scan of the Internet will show many presentations on H.264 showing the motion improvements.

What is also interesting is that Panasonic choose to use the encoding for a storage and not a quality improvement vs. DVCProHD. An interestng comment on the quality of the H.264 encoding algorithms.

Greg Boston
August 10th, 2006, 12:09 AM
Everything I've read has indicated that H.264 is a much better compression algorithm than H.263 and MPEG2.

A quick scan of the Internet will show many presentations on H.264 showing the motion improvements.

True David, but have you encoded an H.264 file recently? It's definitely a hurry up and wait process at the moment. Not suitable for acquisition, just delivery. It's an excellent coding scheme in terms of efficiency, scalable from cell phone to full raster HD. But right now, you pay the price in terms of encoding time to get that efficiency.

When dedicated hardware H.264 chips come along as they did for MPEG2 years ago, you might get realtime encoding. But for now, I know of nothing that offers that option.

Wow, we all seem to be beating this poor horse to death.

-gb-

David Ziegelheim
August 10th, 2006, 01:05 AM
Quite obviously, the AVCHD cameras are doing HiP@Level 4 encoding in realtime. And Panasonic seems to have a solution for their P2 cards. Also, various broadcast hardware is available to encode video streams as HiP@Level4. (note: there are many more to encode MP@Level 3.)

It seems the solutions are nearing our doorstep...just not there yet. Like HD itself 2-3 years ago when the HD1 came out.

Pierre Barberis
August 10th, 2006, 01:50 AM
BARRY GREEN STATED /"Third, it's a better codec, and I can't fathom any respectable engineer arguing otherwise. 18 megabits of H.264 will deliver a substantially better, more robust image than 25 megabits of MPEG-2 any day of the week, and will be more resistant to motion artifacts or other issues."

Yes, probably true with a night long encoding on a powerful specialised workstation with appropriate hardware for minutes of HD video.

But i dont think that this is what we are going to get in a battery powered realtime encoderonboard a consumer cam ! THEORETICALLY, we agree, with some "declining advantage " when resolution increases. But a format is just as good as its realworld ENCODER IMPLEMENTATIONS. ( decoders usually are easier). And there is a big difference between encoding in a studio a Feature movie and doing recording on line .

Another point worth considering was the recent Soccer WorlCup, so called HD, broadcasted under some MPEG4/ H264 in some european countries. Very questionable definition, improvemnt verus SD noticeable but diaspointing. Even with the big guns of the big networks!

Bob Zimmerman
August 10th, 2006, 07:06 AM
So I guess what you guys are saying is,,,,there will be better formats in the future. The big companies are battling it out. The new Canon's are awesome. Don't buy Sony, Canon or any HDV camera they are outdated, AVCHD is for consumers, AVCHD will be the standard,,,,,,

My guess is it will be blue ray. Sony will win. Record, then pop it in your Playstation.

But unless something really big happens in the next few months, or maybe if Sony or Panasonic tops the new Canon A1 I'm going to buy that and without a doubt HDV will live on for a few years. There is too much support for it right now and for some reason people still like tape! Companies like Canon are not clueless and would not introduce new HDV camera's if AVCHD was going to wipe it out anytime soon.
Same as Panansonic coming out with a DVX100b last year. A new 4:3 SD camera? I didn't get that one, a 16:9/4:3 (not the P2 model) would have been better but they must have thought the 4:3 market is going to be around for a few years.

So I don't thing 16:9 AVCHDHD is going to wipe out all other cameras anytime soon. Now if someone announced a new Z1U or DVX100 with AVCHD and SD soon I would think about it if I knew I could edit it. I know my mac can handle HDV. We will see.

David Ziegelheim
August 10th, 2006, 07:36 AM
There is nothing in the AVCHD standard that would prevent it from being written to existing HDV DV tape drives. The new format is encoded in the existing MPEG 2 Transport envelope. What you may see, in fairly short order, is an XH-A1s that uses the new format.

Bob Zimmerman
August 10th, 2006, 07:41 AM
You think a A1s model already? Sorry but no way.

Chris Hurd
August 10th, 2006, 08:54 AM
There is nothing in the AVCHD standard that would prevent it from being written to existing HDV DV tape drives.Nothing except the fact that the format specification clearly indicates tapeless recording media only. There will be *no* tape-based AVCHD camcorder, guaranteed.

What you may see, in fairly short order, is an XH-A1s that uses the new format.In fairly short order? No. Not going to happen.

Eventually, Canon will most likely do an Optura / HV10 style AVCHD camcorder. Remember that Canon is always the last of the major manufacturers to bring any new format to market. They were last for DV, DVD, HDV, and most likely they will be the last for AVCHD.

Gary Bettan
August 10th, 2006, 11:16 AM
This is a great discussion. Obviously there are going to be promoters and doubters of any new format. What I find especially intriguing is that fact that it is tapeless. Which means the vieo is just a big chunk of data. So their isn't any kind of loss from drop-outs or copying it.

What I'd really like to see is how are we going to edit the stuff. What kind of hardware/ software will be needed? If you can't edit and work with the footage, then it's nothing more than point and shoot. Potentially a huge business, but not really effecting the folks here.

Could we see a 3 teir approach?
1) AVCHD as the consumer format. Point, shoot, copy to DVD (blu-ray or HD DVD). transcode for Utube & the web.

2) HDV and DVC Pro HD continue to be for those of us here. The folks who actually create digital content?

3) Broadcast HD for the bigger guys.

For me this is quite interesting. The simple truth is that only a fraction of those people who shoot video edit it. Of those the great majority are just looking to cut out the crap, add some titles, beasic effects and a soundtrack. Then share it with friends & family via DVD or web. For these folks the tapeless AVCHD is the perfect solution, especially if it can go seemlessly t other media for delivery.

But that still leaves everyone here. The video editiors and independent film makers and event videographers and small post production facitities. Not the mass market, but still a very nice niche. One that is growing and is migrating to HD.

Just some thoughts. In my discussions with our NLE vendors, the only group that seems to really have this new format on the map is Sony Vegas. Avid, Adobe, Apple, Canopus and Matrox are all asking us about what we think about it - but not really saying anything more. They appear to be sitting more or less on the sideline and waiting to see if and how it actually takes hold.

Gary

Rodger Smith
September 15th, 2008, 05:13 PM
Nothing except the fact that the format specification clearly indicates tapeless recording media only. There will be *no* tape-based AVCHD camcorder, guaranteed. . . .

This is a great discussion. Obviously there are going to be promoters and doubters of any new format. What I find especially intriguing is that fact that it is tapeless. Which means the vieo is just a big chunk of data. So their isn't any kind of loss from drop-outs or copying it.

What I'd really like to see is how are we going to edit the stuff. What kind of hardware/ software will be needed? If you can't edit and work with the footage, then it's nothing more than point and shoot. Potentially a huge business, but not really effecting the folks here. Gary

Here's my 2 pennies (btw, not worth much these days :o) . . .

We have been considering an HMC150 which is an AVCHD camera also and I spoke with both Panasonic and Sony about them and this is the consensus that I derived from those technical conversations:

1.) AVCHD was designed out of the desire to produce a quick easy to use consumer HD format for youtube, iPod, streaming, cell phones, that would utilize efficient methodology to acheive big pictures in small packages for internet and uploading/downloading.

2.) Proof of this (they both said) was that the format was first and foremost sent to the consumer market with both DVD and HDD cameras which is the way the product was initially intended foregoing the opportunity to move the product into the prosumer lines with obvious limitations to bandwidth on color, gamma, and other such editable features that many pro folks like.

Lastly, on this whole direct-to-edit solid-state one always has to consider the often overlooked obvious . . when one's work is sent to solid state it is at risk of disappearing right before their very eyes in a flash or heartbeat or as some easterners say "a New York minute." Most will say, "awwww but . . " Here's the facts, we (through operator error) have lost four major projects using very expensive and very reliable solid-state media and to that end lost 1,000's over it and our only lost client since we been in business. So, we went to HDV tape with solid-state which gave us the best of both worlds BUT that doesn't mean that there aren't other options . . like the SafePhoto II, wherein one could shoot, dump the files into the SPII and KEEP the SD card so that there is 100% back up. However, if I were a wedidng videographer or an event videographer (and I am) I would not shoot to any solid-state media WITHOUT also shooting/recording to some other media at the same time just because before getting to the back up method, you have to have material on the card.

Have you ever lost any media on an SD or CF card? Ever forgot to tell Windows to unmout the card and then have the card lock up? Ever accidently offload data from a card onto a HDD and have the HDD fail? Ever offload from a card to a HDD, reformat the card, then accidently delete the offloadded data from the HDD? We have . . all these. :o(

Dave Blackhurst
September 15th, 2008, 09:47 PM
One can "lose" your data whatever format it's in, or what it's on... proper planning would provide for at least a backup copy if not triple redundant copies in mission critical situations - that's a simple fact of ALL digital media, PERIOD, tapes included.

Tape dropout or tracking failure is ugly, I'll take a non-mechanical recording method any time, but of course you need to adjust workflow so EVERYONE touching the media understands backup protocols... Tape may be more "durable" and in some respects more convenient for long term storage, but barring a large EMP pulse in my general vicinity, I'm comfortable with redundant hard drives backed up fairly regularly, along with DVDs. Sure wish BluRay would become more affordable!

I'm not sure about the "consumer" orientation... perhaps it was ORIGINALLY intended to be a low grade format, but it seems to me that with several generations of refinement, AVCHD cameras are producing video every bit as good as HDV if not better. IIRC MP3 was originally a "low grade" lossy format (and still is I suppose), but considering the market penetration and the varying compression ratios and all, it seems to have become a robust method for delivering audio on a massive scale in many different ways, and via various media. I remember early JPEGs, and they looked like doody... now... it's a standard format and can deliver pretty respectable quality. AVCHD may be the video equivalent??

Sure the purist may still have a love affair with vinyl records and Hi8 tapes or whatever, but technology moves on. EVERY "new" technology always meets with it's detractors and goes through a learning curve before it either suceeds, disappears, or gets replaced with something else that's better (or better marketed).

From my standpoint, the first multicam shoot I did with AVCHD cameras sold me - dump 3 cameras to disk, less than 30 minutes from start to editing a 30 minute event, while it was still fresh, editing was a breeze, little or no color correction or tweaking needed, hit render (and yes, wait a long time...), burn to DVD, looked simply awesome, and painless workflow.

I'm interested in the HMC150, although I wish Sony would get off their bum and do something similar, as they seem to have hit a home run with the latest generation of tapeless cams in both the consumer and pro space, leaving a big toothless gap in the "prosumer" zone where the HMC resides...

Rodger Smith
September 15th, 2008, 11:06 PM
Dave, by all means I'm not suggesting that solid-state isn't an excellent method of video production and I'm not saying that AVCHD isn't a great format, what I am saying is this . .

SOLID STATE IS VOLATILE - With tape (or other immediate copy method) there is a lot less chance of total failure, and if you are a wedding videographer, walking away with a card that might be good and might not and/or might get messed up in the transfer or virus or ?? is dangerous. I would NOT want to tell a bride that I "lost" their data. I'm sure I'd find out what data really meant by the time she found me. On the other hand if one can afford a volatile format that can disappear in the blink of any eye, then so be it but in our broadcast, wedding, event, operations where we get "one shot" to get it right and if we miss it, it isn't just "oh well," it's lawsuit, customer complaint, better business bureau, and very dissatisfied, mad, upset, vomitting . . well I may be going a little overboard but you get the point :o) Personally we've lost 4 projects due to stupidity on operators and one of them was ME :o( However, in producing over 156 video projects last year and just shy of that in the three years that preceded it, we've lost one tape and that was a broken tape which BTW, was sent to California and for $25 which included return shipping, we got the tape back minus 3 seconds of video. Not a bad workflow. However, with P2 solid state in only one years use we lost 3 projects data through operator error and one through HDD failure - one of which cost us our only lost customer since we began video production operations in 2000.

AVCHD BETTER? - We like AVCHD and were set to go 100% with it, studying just how we'd get 100% back up in the field, but when we looked at the footage from cameras like the HMC150, we simply didn't see that much improvement over HDV. In other words, perhaps we have arrived so high in definition and codec manipution inside NLE's that HDV or AVCHD is the same as six of one or half dozen of the other or even half full half empty. We recently saw a bicycle scene shot on an HMC150 and just weeks earlier had shot our own bicycle scene from a simliar angle, similiar lighting, etc. and although not exactly the same side by side shot, here's what we did see: 1. the foalage looked lower in definition than our HDV footage did; 2) there were what appeared to be pixel blocking along the edges of the foalage and sky which we do not see virtually ever on HDV although we don't have a lot of HDV experience (three months total); and 3) the colors do not appear any richer or cleaner than HDV, let alone the low light grain is similiar or even worse than we observe with our newly purchased HDV.

DIRECT-TO-EDIT & SONY - Sony actually does have an HDV solution that satisfies what you were referring to as similiar when they came out with the HVR-Z7U that comes with solid-state Compact Flash with a built in (removable) Memory Recording Unit (that we've actually used on our DVX100B's) and thus we are able to record to both tape AND solid state at the same time and accordinly satisified two goals: A. Direct to edit as you indicated AND B. 100% back up on tape as we like.

In closing, I'm not against any format or process, I am also not loyal to any company or product (all they all want is your money) I am however into warning new folks who are anxious to jump in the water and get wet and have fun not to make the mistakes I have and discover that there are sometimes a lot of bolders or shallow spots and to look hard and deep and talk to people who have had bad experiences not just the ones that are experts on A product or biased to a product due to allegiences because the real truth is learned in failures, not success. Any product or process is great when it is working right or in a particular right situation but in a bad one or in failure is where the rubber meets the road to success or failure. Sticking with alligences nearly cost me my business in NLE's but we managed to come out alive and no longer.

Now I've spent 3 cents :o)