Not sure if this information is useful but... I continued to play with
Audacity and Pulseaudio. I turned off "Software Playthrough" and that
did not fix the problem. It still only worked at 96Khz and 48Khz. I
installed "PulseAudio Device Chooser". I took a look at the sinks and
sources, opened the volume meters but did not change any settings. When
I went back to Audacity, it was now working, recording at any sample
rate. So I turned "Software Playthrough" back on in Audacity and now
nothing records. Cant record at any sample rate. I then turned off
"Software Playthrough" again and now nothing records at any sample rate.
Nothing plays either. So at this point it is broken completely.
After playing with the various settings here is how I got
it to work (more or less):
Applications-Sound & Video-Audacity
Toolbar:
Output Volume - max
Input Volume - max, Capture:1
Edit-Preferences-Audio I/O:
Playback - (hw:0,0)
Recording - (hw:0,2)
Playthrough -
Uncheck Overdub
Uncheck Software Playthrough
Volume Icon-Volume Control
Device: (ALSA Mixer)
Playback:
UnMute (and max volume) - Master, PCM, Front, Mic Boost
Mute - Line-in, CD, Mic, PC Speaker
Recording:
Capture:
Unmute Speaker
Mute Mic
Capture 1
Mute Speaker
Unmute Mic
Switches:
Check - Headphone
Uncheck - IEC958, IEC958 Capture, IEC958 Default PCM
Options:
Channel Mode - 2ch
Input Source - Line
Input Source - Mic
Sound Theme:
Default
Other comments:
- Re-activating software playthrough works (sometimes). So I don't think this
bug is specific to using software playthrough.
- Changing the input source on the audacity toolbar does not change
the recording input.
- Changing the Volume Control options will change the recording input
but it works intermittently. Sometimes the change happens and
sometimes it does not.
- The output and input volume controls on Audacitys toolbar does not
work (volume stays the same regardless of control setting)
- The PulseAudio Volume Meter does not work when Audacity is
playing (works with other apps)
- Sample rates 96kHz, 48kHz, 44kHz work, 22kHz, 16kHz, 8kHz do not
work (stops after 1 sec. recording).
- Sometimes all rates work but I was never able to constantly get it
back to where all sample rates worked.
--
audacity stops recording after about a second when using software play-through
https://bugs.launchpad.net/bugs/355846
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