After Compressor: Deleted 30+ seconds of audio

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jlansink
Posts: 1
Joined: Sat May 14, 2022 12:26 am
Operating System: Windows 10 / 11

After Compressor: Deleted 30+ seconds of audio

Post by jlansink » Sat May 14, 2022 12:41 am

Hello,
I am on Windows 10, Audacity V3.0.2.
After I use the "Effect" for Noise Reduction, Filter Curve (low roll off/Treble Boost), I then apply the compressor. Each time I do this, the audio track is shortened (or a section is deleted) by 30-45 seconds. It just deletes the audio segment. I have to hit Undo to get the audio clip back.
I cannot figure out how to use the compressor without it deleting large segments on the front of a track.
Thank you very much,
Jen

kozikowski
Posts: 71099
Joined: Thu Aug 02, 2007 5:57 pm
Operating System: macOS 10.13 High Sierra

Re: After Compressor: Deleted 30+ seconds of audio

Post by kozikowski » Sat May 14, 2022 4:51 am

How long is the show? Audacity creates Edit > UNDO for many effects and filters by making a copy of The Whole Show. It doesn't really UNDO anything. It just flips back to the last known good show. If you have a long and complex show and you're running out of computer memory or drive space — or you're working from an external, network, or cloud drive, Audacity may not be able to keep up.

Koz

jademan
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Joined: Fri Jul 17, 2009 10:11 pm
Operating System: Windows 10 / 11

Re: After Compressor: Deleted 30+ seconds of audio

Post by jademan » Sat May 14, 2022 1:00 pm

jlansink wrote:
Sat May 14, 2022 12:41 am
I am on Windows 10, Audacity V3.0.2.
.... It just deletes the audio segment.
Which segment ?

IIRC, there was a bug in one of those effects when processing very long audio (close to an hour or longer). I believe this bug was corrected in 3.0.5. Regardless, I would suggest upgrading to the current version of Audacity, which is 3.1.3. See: https://www.audacityteam.org/download/

steve
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Joined: Sat Dec 01, 2007 11:43 am
Operating System: Linux *buntu

Re: After Compressor: Deleted 30+ seconds of audio

Post by steve » Sat May 14, 2022 2:02 pm

How many audio tracks in the project?
Do any of the audio tracks extend to before time = 0?

If an audio track extends before zero, there will be little black arrows like this:

First Track000.png
First Track000.png (14.05 KiB) Viewed 37 times
Learn more about Nyquist programming at audionyq.com

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