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Old January 31st, 2008, 04:35 PM   #1
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Video/Audio speed reduction problems.

I have video footage that I want to reduce by 50% speed.
I've been doing this by right clicking on the footage and in the properties display, changing the 'playback rate' from 1.0 to 0.5.
Unfortunately, this only reduces the speed of the video. I need the audio for this particular project to be slowed down by the same amount.
I know that Ctrl dragging the clip longer slows the audio as well, but I need to do it by 50% and find the dragging process infuriating in terms of finding that 50% speed reduction.

Any help hugely appreciated.
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Old January 31st, 2008, 04:47 PM   #2
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After you set the video, right-click the AUDIO, go into the properties, and set the playback rate to .5 the same as you did for the video. They they will both be changed.
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Old January 31st, 2008, 05:15 PM   #3
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I don't have that option available when I right click on the audo file.
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Old January 31st, 2008, 06:17 PM   #4
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Change the setting in the "Method" box from "None" to "Classic".
Adjust as desired.
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Old January 31st, 2008, 06:44 PM   #5
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Cheers for the feedback y'all, but when I switch it from 'none' to 'classic', I still don't get an option where I can adjust the playback rate.
There is an 'original length' 'new length option', but having to calculate 50% of the original length then type it in on every file will do my head in.
Btw, I'm using Vegas 7.
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Old January 31st, 2008, 08:00 PM   #6
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there is a NON-REALTIME FX that is called (IIRC) TIme Stretch. You can adjust the audio using that FX.

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Old January 31st, 2008, 09:36 PM   #7
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Ok, try this:

Go to View - Active Take Information

Now when you use CTRL and resize the event, the percentage change will be displayed at the right edge of the audio track.

Alternately, you could turn on "Ignore Event Grouping" and CTRL-resize the audio to match the video you previously changed.
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Old January 31st, 2008, 09:39 PM   #8
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Tried that time stretch, jeepers, it works, but it creates a new file and if you've trimmed the clip you're stuffed as it does the whole thing.

I wish there was an equally simple way of reducing the audio speed as there is of the video. Vegas is obviously capable of doing it simply due to how it stretches everything when you do a Ctrl drag of a clip... but you can't specify an exact percentage doing it that way.

Aaaargh!
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Old January 31st, 2008, 10:42 PM   #9
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Quote:
Originally Posted by Dennis Murphy View Post
Vegas is obviously capable of doing it simply due to how it stretches everything when you do a Ctrl drag of a clip... but you can't specify an exact percentage doing it that way.
Actually, you CAN - via a script. I use Excalibur to do this all the time.
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Old January 31st, 2008, 11:06 PM   #10
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Quote:
Originally Posted by Edward Troxel View Post
Actually, you CAN - via a script. I use Excalibur to do this all the time.

Thanks Edward.
I just tried the 'Active Take Information' solution - fantastic. That's a lot more workable.
I just downloaded the trial of excalibur, and tried the duration adjustment, but still it only affected the video stream. It is handy how it lengthens the clip to what the new duration is.
Is there a way of getting it to do the audio automatically in conjunction with the video?
Cheers.
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Old February 1st, 2008, 10:00 AM   #11
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Yes. You have to SELECT the events you want adjusted. It works on selected events.
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Old February 1st, 2008, 09:32 PM   #12
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Worked a treat Edward. Now 'that' is a timesaver!
Cheers.
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Old February 2nd, 2008, 08:44 AM   #13
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Originally Posted by Dennis Murphy View Post
Worked a treat Edward. Now 'that' is a timesaver!
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