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Description of problem:
not able to record sound on C-Media USB, capture volume on max, mic volume on max, I can hear my voice in headphones but arecord produce silent.
Version-Release number of selected component (if applicable):
kernel-2.6.32-339.el6
alsa-lib-1.0.22-3.el6
How reproducible:
Steps to Reproduce:
1. set device in sound preferences (input tab)
2. arecord test.wav
3. aplay test.wav
Actual results:
nothing recorded
Expected results:
should be able to record sound
Additional info:
From my older records it works on 6.3 so most likely regression.
Card: Generic USB Audio Device at usb-0000:00:14.0-3, full speed
(In reply to comment #2)
> The alsa-info attachment seems incomplete (missing amixer output).
>
> Please, attach output from 'amixer -c 2'.
$ amixer -c 2
Simple mixer control 'Speaker',0
Capabilities: pvolume pswitch pswitch-joined penum
Playback channels: Front Left - Front Right
Limits: Playback 0 - 151
Mono:
Front Left: Playback 65 [43%] [-16.19dB] [on]
Front Right: Playback 65 [43%] [-16.19dB] [on]
Simple mixer control 'Mic',0
Capabilities: pvolume pvolume-joined cvolume cvolume-joined pswitch pswitch-joined cswitch cswitch-joined penum
Playback channels: Mono
Capture channels: Mono
Limits: Playback 0 - 32 Capture 0 - 16
Mono: Playback 32 [100%] [47.81dB] [on] Capture 16 [100%] [23.81dB] [on]
Simple mixer control 'Auto Gain Control',0
Capabilities: pswitch pswitch-joined penum
Playback channels: Mono
Mono: Playback [on]
Comment 5RHEL Program Management
2012-12-14 08:29:40 UTC
This request was not resolved in time for the current release.
Red Hat invites you to ask your support representative to
propose this request, if still desired, for consideration in
the next release of Red Hat Enterprise Linux.
Tried with 6.4. I did get a recording but the sound had a lot of static in it. Retested with 6.7 and the recording sounds very clear now. Will reopen if this regresses in the future.