720p60 uncompressed at DVinfo.net

Ken Hodson · March 19th, 2005, 01:28 PM

This web site is not the origionator of this info, but is kind enough to host it at the moment.

http://www.sanjinjukic.com/index_JVCproHD.html

"In addition to providing superior quality HD recording in the 24p format, the GY-HD100U can output an uncompressed 720/P60 HD signal."

I haven't heard anyone mention this ability of the cam. One would need a HDSDI converter and one hell of a RAID setup, but that is one hell of an option for the pro's.

Tom Roper · March 19th, 2005, 01:38 PM

...or they merely mean the uncompressed output can be streamed out the analog component YPbPr outputs.

Edit: Never mind what I said. Here's the quote:

"A third party HDSDI converter can provide the full resolution uncompressed signal to an array of systems with no signal delay."

Luis Caffesse · March 20th, 2005, 07:10 PM

My question would be will the camera output ONLY 720p60 out of the uncompressed output?

Seems odd that they would make sure to mention the 60 frames per second.

What about 720P24 uncompressed?

I guess we'll have to wait and see.

Ken Hodson · March 20th, 2005, 09:13 PM

"My question would be will the camera output ONLY 720p60 out of the uncompressed output?"

My guess is yes. The current HDV tape spec can't handle 720p60. But we won't know for sure untill release.

"Seems odd that they would make sure to mention the 60 frames per second."

Why is that? It is the standard frame rate of HD 720.

"What about 720P24 uncompressed?"

Yes of course. And all frame rates in between.

Barry Green · March 20th, 2005, 09:56 PM

The HDV tape spec specifically does allow for 720/60p. It's still encoded at 19mbps though. Don't understand the comment about frame rates though -- HDV provides for only 25, 30, and 60 frame rates, not for 24 and not for any frame rates inbetween.

Ken Hodson · March 20th, 2005, 10:58 PM

I forgot 60p was HDV spec for 720p as well.

"Don't understand the comment about frame rates though -- HDV provides for only 25, 30, and 60 frame rates, not for 24 and not for any frame rates inbetween."

Luis asked if 24p would be available uncompressed. Not if it was HDV spec. My answer was yes, being that 60p was available uncompressed you can bet all lower frame rates will be as well. Make sense?

Barry Green · March 21st, 2005, 02:14 AM

Ah. Okay. Well, I guess the confusion was when you said "all frame rates inbetween" -- I took that to mean that you were saying it would be like the VariCam, capable of imaging at all frame rates. But now that I read it again, I think you're saying that any frame rate the camera is capable of, would also be available on the uncompressed output (so, the spelled out 24 and 30, and presumably 60).

Of course, if the camera actually is capable of fully variable frame rates, that would make for some very interesting news!

Luis Caffesse · March 21st, 2005, 10:08 AM

"Of course, if the camera actually is capable of fully variable frame rates, that would make for some very interesting news!"

Well, that would just be a dream....
although I still have a feeling that the Pana DVCProHD might have variable frame rates, but I'm not holding my breath.

As far as I'm concerned, uncompressed outputs with 720P24 is already VERY interesting news.

This new JVC camera could give some stunning images if you're willing to be tethered to a computer or a deck of somekind.

Remember just a year ago people were freaking out over the kinneta which promised uncompressed HD for 40-50K?
Granted this camera is not in the same class exactly, but who would have thought we'd be talking about uncompressed 720P at 24fps for under 10K?

I'll believe this when I see it, but it is very exciting.

Luis Caffesse · March 22nd, 2005, 06:57 PM

From this article

"The new camera can't record 720p at 60 frames per second, but future models will. But the new ProHD is capable of outputting 720p/60 for live transmission or recording on an external video server."

Now it makes sense to me why the first article we were disucssing specifically mentioned 60fps.

This article is being discussed in ANOTHER THREAD.
I just wanted to quote that section since it tied into the earlier discussion here.

Steve Mullen · March 23rd, 2005, 04:18 AM

<<<-- Originally posted by Luis Caffesse : My question would be will the camera output ONLY 720p60 out of the uncompressed output?

Seems odd that they would make sure to mention the 60 frames per second. -->>>

Think about how 24fps is handled in the world -- 2:3 pull-down is added. The analog and HD-SDI ouput of 720p is always 720/60P.

Latter this week my HDV@Work Newsletter for Video Systems will cover ProHD in detail. (Including the Motion Filter.) To sign-up you must go to VS's site.

You should try to also get last week's because it has an explanation of PCM audio for the ProHD format. That's 4 channels of audio.

Chris Hurd · March 23rd, 2005, 08:35 AM

The link for Steve's excellent newsletter "HDV at Work" is:

http://enews.primediabusiness.com/en...v_work/current

I will add this to our HDV Info Net Resources page directly.

March 19th, 2005, 01:28 PM	#1
Ken Hodson Trustee Join Date: Aug 2003 Location: Vancouver BC Canada Posts: 1,315	720p60 uncompressed This web site is not the origionator of this info, but is kind enough to host it at the moment. http://www.sanjinjukic.com/index_JVCproHD.html "In addition to providing superior quality HD recording in the 24p format, the GY-HD100U can output an uncompressed 720/P60 HD signal." I haven't heard anyone mention this ability of the cam. One would need a HDSDI converter and one hell of a RAID setup, but that is one hell of an option for the pro's. __________________ Damnit Jim, I'm a film maker not a sysytems tech.

March 19th, 2005, 01:38 PM	#2
Tom Roper Trustee Join Date: Jun 2004 Location: Denver, Colorado Posts: 1,891	...or ...or they merely mean the uncompressed output can be streamed out the analog component YPbPr outputs. Edit: Never mind what I said. Here's the quote: "A third party HDSDI converter can provide the full resolution uncompressed signal to an array of systems with no signal delay."

March 20th, 2005, 07:10 PM	#3
Luis Caffesse Major Player Join Date: Apr 2004 Location: Austin, Texas Posts: 704	My question would be will the camera output ONLY 720p60 out of the uncompressed output? Seems odd that they would make sure to mention the 60 frames per second. What about 720P24 uncompressed? I guess we'll have to wait and see. __________________ Luis Caffesse Pitch Productions Austin, Texas

March 20th, 2005, 09:13 PM	#4
Ken Hodson Trustee Join Date: Aug 2003 Location: Vancouver BC Canada Posts: 1,315	"My question would be will the camera output ONLY 720p60 out of the uncompressed output?" My guess is yes. The current HDV tape spec can't handle 720p60. But we won't know for sure untill release. "Seems odd that they would make sure to mention the 60 frames per second." Why is that? It is the standard frame rate of HD 720. "What about 720P24 uncompressed?" Yes of course. And all frame rates in between. __________________ Damnit Jim, I'm a film maker not a sysytems tech.

March 20th, 2005, 10:58 PM	#6
Ken Hodson Trustee Join Date: Aug 2003 Location: Vancouver BC Canada Posts: 1,315	I forgot 60p was HDV spec for 720p as well. "Don't understand the comment about frame rates though -- HDV provides for only 25, 30, and 60 frame rates, not for 24 and not for any frame rates inbetween." Luis asked if 24p would be available uncompressed. Not if it was HDV spec. My answer was yes, being that 60p was available uncompressed you can bet all lower frame rates will be as well. Make sense? __________________ Damnit Jim, I'm a film maker not a sysytems tech.

March 20th, 2005, 09:56 PM	#5
Barry Green Barry Wan Kenobi Join Date: Jul 2003 Location: North Carolina Posts: 3,863	The HDV tape spec specifically does allow for 720/60p. It's still encoded at 19mbps though. Don't understand the comment about frame rates though -- HDV provides for only 25, 30, and 60 frame rates, not for 24 and not for any frame rates inbetween.

March 21st, 2005, 02:14 AM	#7
Barry Green Barry Wan Kenobi Join Date: Jul 2003 Location: North Carolina Posts: 3,863	Ah. Okay. Well, I guess the confusion was when you said "all frame rates inbetween" -- I took that to mean that you were saying it would be like the VariCam, capable of imaging at all frame rates. But now that I read it again, I think you're saying that any frame rate the camera is capable of, would also be available on the uncompressed output (so, the spelled out 24 and 30, and presumably 60). Of course, if the camera actually is capable of fully variable frame rates, that would make for some very interesting news!

March 21st, 2005, 10:08 AM	#8
Luis Caffesse Major Player Join Date: Apr 2004 Location: Austin, Texas Posts: 704	"Of course, if the camera actually is capable of fully variable frame rates, that would make for some very interesting news!" Well, that would just be a dream.... although I still have a feeling that the Pana DVCProHD might have variable frame rates, but I'm not holding my breath. As far as I'm concerned, uncompressed outputs with 720P24 is already VERY interesting news. This new JVC camera could give some stunning images if you're willing to be tethered to a computer or a deck of somekind. Remember just a year ago people were freaking out over the kinneta which promised uncompressed HD for 40-50K? Granted this camera is not in the same class exactly, but who would have thought we'd be talking about uncompressed 720P at 24fps for under 10K? I'll believe this when I see it, but it is very exciting. __________________ Luis Caffesse Pitch Productions Austin, Texas

March 22nd, 2005, 06:57 PM	#9
Luis Caffesse Major Player Join Date: Apr 2004 Location: Austin, Texas Posts: 704	From this article "The new camera can't record 720p at 60 frames per second, but future models will. But the new ProHD is capable of outputting 720p/60 for live transmission or recording on an external video server." Now it makes sense to me why the first article we were disucssing specifically mentioned 60fps. This article is being discussed in ANOTHER THREAD. I just wanted to quote that section since it tied into the earlier discussion here. __________________ Luis Caffesse Pitch Productions Austin, Texas

March 23rd, 2005, 04:18 AM	#10
Steve Mullen HDV Cinema Join Date: Feb 2003 Location: Las Vegas Posts: 4,007	<<<-- Originally posted by Luis Caffesse : My question would be will the camera output ONLY 720p60 out of the uncompressed output? Seems odd that they would make sure to mention the 60 frames per second. -->>> Think about how 24fps is handled in the world -- 2:3 pull-down is added. The analog and HD-SDI ouput of 720p is always 720/60P. Latter this week my HDV@Work Newsletter for Video Systems will cover ProHD in detail. (Including the Motion Filter.) To sign-up you must go to VS's site. You should try to also get last week's because it has an explanation of PCM audio for the ProHD format. That's 4 channels of audio. __________________ Switcher's Quick Guide to the Avid Media Composer >>> http://home.mindspring.com/~d-v-c

March 23rd, 2005, 08:35 AM	#11
Chris Hurd Obstreperous Rex Join Date: Jan 2001 Location: San Marcos, TX Posts: 27,368 Images: 513	The link for Steve's excellent newsletter "HDV at Work" is: http://enews.primediabusiness.com/en...v_work/current I will add this to our HDV Info Net Resources page directly. __________________ CH Search DV Info Net \| 20 years of DVi \| ...Tuesday is Soylent Green Day!