[pulseaudio-tickets] [Bug 87814] Microphone has loud static/distortion when volume is not 100%

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=87814

--- Comment #18 from Raymond <superquad.vortex2 at gmail.com> ---
refer to  two logs  , hardware volum seem always below -40dB only software
volume close to maximum



10 10:14:00 foo.example.com pulseaudio[3356]: (1052.715|   0.000)
[alsa-sink-USB Audio][modules/alsa/alsa-sink.c:1337 sink_set_volume_cb()]
Requested volume: front-left: 13120 /  20% / -41.91 dB,   front-right: 13120 / 
20% / -41.91 dB
Jan 10 10:14:00 foo.example.com pulseaudio[3356]: (1052.715|   0.000)
[alsa-sink-USB Audio][modules/alsa/alsa-sink.c:1339 sink_set_volume_cb()] Got
hardware volume: front-left: 13588 /  21% / -41.00 dB,   front-right: 13588 / 
21% / -41.00 dB
Jan 10 10:14:00 foo.example.com pulseaudio[3356]: (1052.715|   0.000)
[alsa-sink-USB Audio][modules/alsa/alsa-sink.c:1342 sink_set_volume_cb()]
Calculated software volume: front-left: 63279 /  97% / -0.91 dB,   front-right:
63279 /  97% / -0.91 dB (accurate-enough=no)




10:14:43 foo.example.com pulseaudio[3356]: (1096.490|   0.005) [alsa-sink-USB
Audio][modules/alsa/alsa-sink.c:1337 sink_set_volume_cb()] Requested volume:
front-left: 13120 /  20% / -41.91 dB,   front-right: 13120 /  20% / -41.91 dB
Jan 10 10:14:43 foo.example.com pulseaudio[3356]: (1096.490|   0.000)
[alsa-sink-USB Audio][modules/alsa/alsa-sink.c:1339 sink_set_volume_cb()] Got
hardware volume: front-left: 13588 /  21% / -41.00 dB,   front-right: 13588 / 
21% / -41.00 dB
Jan 10 10:14:43 foo.example.com pulseaudio[3356]: (1096.490|   0.000)
[alsa-sink-USB Audio][modules/alsa/alsa-sink.c:1342 sink_set_volume_cb()]
Calculated software volume: front-left: 63279 /  97% / -0.91 dB,   front-right:
63279 /  97% / -0.91 dB (accurate-enough=no)



10 10:25:00 foo.example.com pulseaudio[3356]: (1713.033|   0.000)
[alsa-sink-USB Audio][modules/alsa/alsa-sink.c:1337 sink_set_volume_cb()]
Requested volume: front-left: 13120 /  20% / -41.91 dB,   front-right: 13120 / 
20% / -41.91 dB
Jan 10 10:25:00 foo.example.com pulseaudio[3356]: (1713.033|   0.000)
[alsa-sink-USB Audio][modules/alsa/alsa-sink.c:1339 sink_set_volume_cb()] Got
hardware volume: front-left: 13588 /  21% / -41.00 dB,   front-right: 13588 / 
21% / -41.00 dB
Jan 10 10:25:00 foo.example.com pulseaudio[3356]: (1713.033|   0.000)
[alsa-sink-USB Audio][modules/alsa/alsa-sink.c:1342 sink_set_volume_cb()]
Calculated software volume: front-left: 63279 /  97% / -0.91 dB,   front-right:
63279 /  97% / -0.91 dB (accurate-enough=no)




10:25:44 foo.example.com pulseaudio[3356]: (1756.805|   0.003) [alsa-sink-USB
Audio][modules/alsa/alsa-sink.c:1337 sink_set_volume_cb()] Requested volume:
front-left: 13120 /  20% / -41.91 dB,   front-right: 13120 /  20% / -41.91 dB
Jan 10 10:25:44 foo.example.com pulseaudio[3356]: (1756.805|   0.000)
[alsa-sink-USB Audio][modules/alsa/alsa-sink.c:1339 sink_set_volume_cb()] Got
hardware volume: front-left: 13588 /  21% / -41.00 dB,   front-right: 13588 / 
21% / -41.00 dB
Jan 10 10:25:44 foo.example.com pulseaudio[3356]: (1756.806|   0.000)
[alsa-sink-USB Audio][modules/alsa/alsa-sink.c:1342 sink_set_volume_cb()]
Calculated software volume: front-left: 63279 /  97% / -0.91 dB,   front-right:
63279 /  97% / -0.91 dB (accurate-enough=no)

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