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Recording and playback via Audacity, 21.10

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Pointy

Ubuntu 21.10, stock audio installation (not JACK). I'm trying to do a simple test to compare two microphones, and it's been extremely frustrating. The mics are both USB microphones.

Note that my microphone and playback work just fine for Zoom or Google Meetings, and my audio works fine for YouTube and other browser applications. Also audacious works fine to play back audio files.

I gave up on arecord because it wouldn't do anything; I either got errors about the chosen hardware or it would record an empty file.

I installed audacity, and it works half-way: my microphone clearly works, as I see a waveform in the UI and it makes sense (like, I tap on the microphone and get little bursts). However, either with test recordings like that or with other audio files, audacity is incapable of producing sound. I've got the "default" output chosen, and again my audio output system does work for everything else, but not audacity.

What I've been able to do is use audacity for input, then export a track to a .wav file, then go back to the command line and play the track through audacious. That works: the track plays through the correct output device.

I'm not sure what I'm doing incorrectly; it's a pretty vanilla Ubuntu/xfce4 installation, and, at the risk of being a broken record, multimedia stuff generally works fine. It would be nice however if I could figure out how to get audacity to use the correct (default) audio output for playback.

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