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Slow audio rendering. P4 machine performs faster than Core i7 ?!
Recently I have upgraded to a Core i7 system with Vegas 9 (64bit), unfortunately my old P4 system (with WinXP 32bit + Vegas 6) appears to render faster than my new machine.
NEW System Config: Core i7 3370 @3.4Ghz + Win 7 SP1 64bit + Vegas 9 (64bit)
Source……….Output……….Length……….Render time..
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wav………….wav………….10 min……….40 secs……
wav………….mp3(256kbit)….10 min……….41 secs……OLD System config: Pentium 4 @3.0Ghz + Windows XP SP3 32bit + Vegas 6
Source……….Output……….Length……….Render time..
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wav………….wav………….10 min……….22 secs……
wav………….mp3(256kbit)….10 min……….12 secs……These are audio production rigs so tests are made with audio track only. Project is a 1 track 10 minute stereo 44khz 16-bit WAV file inserted in timeline and rendered with no SFX.
Any ideas why this is happening?
I’d be glad to hear any solutions. If you want more details or further tests, just ask me.edit:
Soundforge 9 renders the same wav file into mp3 less than 3 secs.
I have tested it with Reaper also. It renders in 2 secs.
I guess it’s not a audio codec issues since these apps work fine. -
17 Replies
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You proved the 32bit codecs do not have a problem, but Vegas 9 64bit needs a 64bit codec. Can you test with Vegas 9 32bit to see if it is a problem with the 64bit codec?
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Thanks for the reply Mark.
Reaper is an 64bit application and it renders in 2 secs. I assume it uses 64 bit codecs.I’d like to test it with Vegas 9 32 bit unfortunately, I don’t have it.
I’d be glad if anyone running Vegas 9 32bit on Windows 7 could do this quick test and post the result here. It’ll only take a minute or two.Open a New project and insert an audio file (any Mp3 >128Kbit OR a WAV 44khz 16bit )in timeline, then make it 10 minutes in length, then render into a 44khz WAV file. How long does it takes to render?
Thanks in advance. -
Are you by any chance using the “real time audio render” feature, instead of the normal “render as…” ? If you have 10 mins of audio on the timeline, then the realtime render will take 10 mins (or slightly more).
A normal audio-only render should only take seconds, like Reaper and Soundforge. I use Movie Studio 10 and even on an old machine it’s only a matter of seconds to render several minutes of audio out to WAV.
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No, Matt, I use Render as… to render.
Could you please render a 10 minute WAV file using Render As.. just to see how many seconds it takes with your version of Vegas?
BTW, I have run the same test on another machine with Core i7 960 @3ghz Win7 64bit with Vegas Pro 10 64bit and it took 27 seconds to render a 10 minutes WAV file while with SoundForge 10 and Reaper 64bit it took less than 3 seconds.
I think there is something wrong with Vegas 9 (and 10) about the way it handles audio.
I installed a Vegas 6 on the first Core i7 machine I mentioned in my initial post and it just rendered normal just like Soundforge and Reaper.
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Omer, I just tried this with Pro 10 and Pro 11 and each time it took less than one second to do the render.
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It took 2 seconds with Vegas Pro 12.
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Thanks Mike.
Is that VP10 a 32bit or 64bit? -
Omer, it was 64 bit.
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Thanks all for the replies.
Any Vegas 9 64/32 user..?
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Did you check the Audio Device Type under Sony Vegas Pro Preferences? Mine is set to Microsoft Sound Mapper. This setting would be specific to Vegas Pro where you are seeing the slow down.
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