Wave is not in sync with the sound

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onkeltem
Posts: 3
Joined: Thu Jul 12, 2018 11:15 pm
Operating System: Linux *buntu

Wave is not in sync with the sound

Post by onkeltem » Thu Nov 29, 2018 5:24 pm

Kubuntu 18.04
Audacity 2.2.2

I have a problem with editing an uncompressed wave file (44kHz, 16bit). Simply put visual representation of the playback is not in sync with the audio like there is a lag.

I attach a screenshot of a wave of ~500ms length which when played back lasts for just a little moment like 100ms or less.

This seems to be a problem with either Linux version or 2.2.2, because on Windows (where I have 3.x version) there is no such a problem with this file.

Any ideas?
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steve
Site Admin
Posts: 49027
Joined: Sat Dec 01, 2007 11:43 am
Operating System: Linux *buntu

Re: Wave is not in sync with the sound

Post by steve » Thu Nov 29, 2018 6:24 pm

Perhaps you have set the buffer size too long in Audacity Preferences. The default is 100 ms. See: https://manual.audacityteam.org/man/dev ... ences.html

If you are using PulseAudio, that will add an additional buffer delay.
9/10 questions are answered in the FREQUENTLY ASKED QUESTIONS (FAQ)

kozikowski
Forum Staff
Posts: 41543
Joined: Thu Aug 02, 2007 5:57 pm
Operating System: OS X 10.9 Mavericks

Re: Wave is not in sync with the sound

Post by kozikowski » Thu Nov 29, 2018 8:59 pm

How does the bouncing sound meter work? That one should follow your work much better. That's the one you watch for volume quality during a recording. Cranking through the graphics processing to make the blue waves is processor heavy.

You can click and drag the sound meters much bigger (and wider) so they're easier to see.

Image

Koz

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