Vegas Video discussions from 2004 (Q1Q2)

Michael Estepp · February 21st, 2004, 09:52 PM

Hey folks,
I want to put a clip in slow motion, and retain the audio, but have that also be the rate at which I sample the video... This is not possible with the video envelopes event velocity. Any suggestions?

Michael Estepp

Edward Troxel · February 21st, 2004, 10:26 PM

As long as you only need a SINGLE speed (i.e. not a variable speed), hold down the CTRL key and resize the clip. This will "stretch" or "shrink" the clip and the audio will be adjusted as well.

Michael Estepp · February 21st, 2004, 11:55 PM

Thats a cool tip, thanks... is there any other way to do it? This method actually stutters the audio and doesn't slow the speed, is there anything else you can suggest?

Michael Estepp

Lars Siden · February 22nd, 2004, 06:39 AM

Hi,

I can't make up my mind about this question - is it silly or not ?

What got me thinking was that when I run my computer with the case open I could feel my gfx card get alot hotter while rendering in Vegas... so a thought was born...maybe Vegas uses directX filters/functions to speed up things...and then just maybe those instructions are being executed on the GPU?

Or maybe everything just head up cause the CPU was working 100%...

Please don't laught yourself silly about this :-)

// Lazze \\

Yi Fong Yu · February 22nd, 2004, 06:44 AM

i've been using ATI's MMC 8.9 to capture old VHS i have. i have a tape that is 5 hrs 30 min. i already captured @MPEG2, 1Megabit @low res. after finnishing the capture i have a 3GB file. that should fit a 4.7GB DVD-R media easily. how come DVD Arch has to recompress and says that my file is too large (23GB?) and still needs to recompress? i don't get it.

Peter Jefferson · February 22nd, 2004, 08:50 AM

yeah i thought as much...

thanx Edward

Peter Jefferson · February 22nd, 2004, 08:56 AM

direct x is a series of drivers which run computer based (ie number crunching) commands...

most of vegas plugins are DirectX, reliant, expecially the audio plugins.

Direct X wont have any adverse effect on your graphics card due to the fact that the rendering is done thru your ram and cpu, BEFORE your graphics card takes over to create the image u see.

things like Hollywood effects and some openGL apps like combustion and some pinnacle apps do use your gfx card and its respective drivers...

with vegas though, it doesnt. (oh unless your running Boris, sorry)

i think the heat your seeing is your mobo automaitcally picking up that the gfx card is idle, so to save power, it may have dropped the rpms of your gfx card fan.

or you could have answereed ur own question :)

Peter Jefferson · February 22nd, 2004, 08:58 AM

good call Edward, another one is to cut the scene in b&w. depending on the shade of blue, you may be able to get away with it :)

Peter Jefferson · February 22nd, 2004, 09:02 AM

SoFo have a pitch changer plugin for your audio, while, vegas can work on teh video, u can export the audio run the plug, and reimport the audio to your project.. but Edward's is a better idea IMO...
pitch changer and time stretch plugins are ok, but costly if u dont use them much..

Glen Elliott · February 22nd, 2004, 11:17 AM

The "stuttering" you hear could be from the flange introduced from slowing it down too much. There is a limit to where the audio can be played slowely before flange is introduced.

Edward Troxel · February 22nd, 2004, 01:08 PM

If the MPEG2 file is not DVD compatible, DVD Architect MUST recompress it. The final size will vary depending on the the bitrate you choose.

Edward Troxel · February 22nd, 2004, 01:17 PM

While Vegas plugins are based on DirectX, the video card doesn't make any difference when editing. CPU speed, bus speeds, hard drive speeds, RAM speed.... these will affect the rendering speeds. The CPU WILL get a lot hotter during rendering which, I suppose, could affect other items within the case.

Jason Gatti · February 22nd, 2004, 01:23 PM

I'll say I'm sorry right of the bat here. I downloaded the demo's for Vegas 4.0 and Screenblast. I am not used to the 4+lines for text/video etc. Do they explain better in a manual how to use them all together. The text still work's in the video line etc. So whats the point of all of them? It's still all very new but very frustrating to me. Can you please explain this?
Also when I play back a video in the viewing box I get all kinds of blurry lines through the middle. Is that normal before rendering, and will it go away?
One more thing, when doing text like a credit scroll. Why can't you put a body along with the headline etc? Do you have to just keep making one per box and putting them together? Thanks in advance.

Edward Troxel · February 22nd, 2004, 01:30 PM

Multiple video lines allows for complex compositing options. As you have seen, text gets placed on a video track. Video placed on a lower video track will show through behind that text. You could have additional video tracks above that to place additional pictures (such as the "bug" in the corner of most TV programs)...

Preview quality will depend on the quality level setting and the power of your computer. If the computer has to do a lot of work, you need the preview either on a lower setting. Also, frame rate will drop when the computer cannot keep up.

Not sure what you mean by the "credit scroll". You can have 3 different types of entries in the "credit scroll" tool. Of course you could use the standard text box and add keyframes to scroll it. You can also create the text in Photoshop and use keyframes in Vegas to properly scroll it.

Edward Troxel · February 22nd, 2004, 01:35 PM

You're only other options is to export the audio to some other program (such as Sound Forge) and modify the speed there.

February 21st, 2004, 09:52 PM	#481
Michael Estepp Regular Crew Join Date: May 2003 Location: Los Angeles Posts: 95	Slow Motion?????? Hey folks, I want to put a clip in slow motion, and retain the audio, but have that also be the rate at which I sample the video... This is not possible with the video envelopes event velocity. Any suggestions? Michael Estepp

February 22nd, 2004, 06:39 AM	#484
Lars Siden Major Player Join Date: Mar 2003 Location: Sweden, Stockholm Posts: 469	Does Vegas use DirectX functions when rendering? Hi, I can't make up my mind about this question - is it silly or not ? What got me thinking was that when I run my computer with the case open I could feel my gfx card get alot hotter while rendering in Vegas... so a thought was born...maybe Vegas uses directX filters/functions to speed up things...and then just maybe those instructions are being executed on the GPU? Or maybe everything just head up cause the CPU was working 100%... Please don't laught yourself silly about this :-) // Lazze \\ __________________ Sony HDR-CX130,Canon 5DMKII,i7 930@4.0, 12gb memory, 3x SSD + 2x1Tb(stripe), Geforce 480, Dual 24", Win 7 x64

February 22nd, 2004, 06:44 AM	#485
Yi Fong Yu Trustee Join Date: Sep 2002 Location: Vulcan Posts: 1,564	DVD Arch must recompress into its own MPEG2 codec? i've been using ATI's MMC 8.9 to capture old VHS i have. i have a tape that is 5 hrs 30 min. i already captured @MPEG2, 1Megabit @low res. after finnishing the capture i have a 3GB file. that should fit a 4.7GB DVD-R media easily. how come DVD Arch has to recompress and says that my file is too large (23GB?) and still needs to recompress? i don't get it. __________________ bow wow wow

February 22nd, 2004, 01:23 PM	#493
Jason Gatti Regular Crew Join Date: Dec 2003 Location: Michigan Posts: 48	Stupid Newbie question I'll say I'm sorry right of the bat here. I downloaded the demo's for Vegas 4.0 and Screenblast. I am not used to the 4+lines for text/video etc. Do they explain better in a manual how to use them all together. The text still work's in the video line etc. So whats the point of all of them? It's still all very new but very frustrating to me. Can you please explain this? Also when I play back a video in the viewing box I get all kinds of blurry lines through the middle. Is that normal before rendering, and will it go away? One more thing, when doing text like a credit scroll. Why can't you put a body along with the headline etc? Do you have to just keep making one per box and putting them together? Thanks in advance.

February 21st, 2004, 10:26 PM	#482
Edward Troxel Sponsor: JET DV Join Date: Dec 2001 Location: Southern Illinois Posts: 7,953	As long as you only need a SINGLE speed (i.e. not a variable speed), hold down the CTRL key and resize the clip. This will "stretch" or "shrink" the clip and the audio will be adjusted as well.

February 21st, 2004, 11:55 PM	#483
Michael Estepp Regular Crew Join Date: May 2003 Location: Los Angeles Posts: 95	Thats a cool tip, thanks... is there any other way to do it? This method actually stutters the audio and doesn't slow the speed, is there anything else you can suggest? Michael Estepp

February 22nd, 2004, 08:50 AM	#486
Peter Jefferson Inner Circle Join Date: Apr 2003 Location: Aus Posts: 3,884	yeah i thought as much... thanx Edward

February 22nd, 2004, 08:56 AM	#487
Peter Jefferson Inner Circle Join Date: Apr 2003 Location: Aus Posts: 3,884	direct x is a series of drivers which run computer based (ie number crunching) commands... most of vegas plugins are DirectX, reliant, expecially the audio plugins. Direct X wont have any adverse effect on your graphics card due to the fact that the rendering is done thru your ram and cpu, BEFORE your graphics card takes over to create the image u see. things like Hollywood effects and some openGL apps like combustion and some pinnacle apps do use your gfx card and its respective drivers... with vegas though, it doesnt. (oh unless your running Boris, sorry) i think the heat your seeing is your mobo automaitcally picking up that the gfx card is idle, so to save power, it may have dropped the rpms of your gfx card fan. or you could have answereed ur own question :)

February 22nd, 2004, 08:58 AM	#488
Peter Jefferson Inner Circle Join Date: Apr 2003 Location: Aus Posts: 3,884	good call Edward, another one is to cut the scene in b&w. depending on the shade of blue, you may be able to get away with it :)

February 22nd, 2004, 09:02 AM	#489
Peter Jefferson Inner Circle Join Date: Apr 2003 Location: Aus Posts: 3,884	SoFo have a pitch changer plugin for your audio, while, vegas can work on teh video, u can export the audio run the plug, and reimport the audio to your project.. but Edward's is a better idea IMO... pitch changer and time stretch plugins are ok, but costly if u dont use them much..

February 22nd, 2004, 11:17 AM	#490
Glen Elliott Wrangler Join Date: Apr 2003 Location: Philadelphia, PA Posts: 2,898	The "stuttering" you hear could be from the flange introduced from slowing it down too much. There is a limit to where the audio can be played slowely before flange is introduced.

February 22nd, 2004, 01:08 PM	#491
Edward Troxel Sponsor: JET DV Join Date: Dec 2001 Location: Southern Illinois Posts: 7,953	If the MPEG2 file is not DVD compatible, DVD Architect MUST recompress it. The final size will vary depending on the the bitrate you choose.

February 22nd, 2004, 01:17 PM	#492
Edward Troxel Sponsor: JET DV Join Date: Dec 2001 Location: Southern Illinois Posts: 7,953	While Vegas plugins are based on DirectX, the video card doesn't make any difference when editing. CPU speed, bus speeds, hard drive speeds, RAM speed.... these will affect the rendering speeds. The CPU WILL get a lot hotter during rendering which, I suppose, could affect other items within the case.

February 22nd, 2004, 01:30 PM	#494
Edward Troxel Sponsor: JET DV Join Date: Dec 2001 Location: Southern Illinois Posts: 7,953	Multiple video lines allows for complex compositing options. As you have seen, text gets placed on a video track. Video placed on a lower video track will show through behind that text. You could have additional video tracks above that to place additional pictures (such as the "bug" in the corner of most TV programs)... Preview quality will depend on the quality level setting and the power of your computer. If the computer has to do a lot of work, you need the preview either on a lower setting. Also, frame rate will drop when the computer cannot keep up. Not sure what you mean by the "credit scroll". You can have 3 different types of entries in the "credit scroll" tool. Of course you could use the standard text box and add keyframes to scroll it. You can also create the text in Photoshop and use keyframes in Vegas to properly scroll it.

February 22nd, 2004, 01:35 PM	#495
Edward Troxel Sponsor: JET DV Join Date: Dec 2001 Location: Southern Illinois Posts: 7,953	You're only other options is to export the audio to some other program (such as Sound Forge) and modify the speed there.