12-03-2019, 09:32 PM
(12-03-2019, 06:07 PM)Tim Curtis Wrote: @stefano_mbp,I’ll check and report you ASAP, thank you for your effort and .... your software is anyway fantastic
I don't see any trailing spaces so that rules out the "training space in mixer name" issue.
Based on this result and the amixer output from earlier which seems to be missing the ALSA volume fields I'd conclude that the CA device is not compatible with Linux possibly due to incorrect USB descriptor.
Amixer output from earlier which suggests missing ALSA volume fields.
It shows front L/R playback [on] but no limits or [vol%]
pi@moode:~ $ amixer -c 1
Simple mixer control 'CA Audio 2.0 Output',0
Capabilities: pswitch
Playback channels: Front Left - Front Right
Mono:
Front Left: Playback [on]
Front Right: Playback [on]
Simple mixer control 'CA Audio 2.0 Output',1
Capabilities: pswitch pswitch-joined
Playback channels: Mono
Mono: Playback [on]
Here is what the output should look like.
pi@rp3:~ $ amixer -c0 sget Master
Simple mixer control 'Master',0
Capabilities: pvolume pswitch pswitch-joined
Playback channels: Front Left - Front Right
Limits: Playback 0 - 255
Mono:
Front Left: Playback 148 [58%] [-53.50dB] [on]
Front Right: Playback 148 [58%] [-53.50dB] [on]
-Tim