[pulseaudio-tickets] [Bug 50056] Feedback popping sound when volume sliders are moved

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=50056

--- Comment #8 from Raymond <superquad.vortex2 at gmail.com> ---
you have to provide log when pop occurs

the volume slider in sound preference use pulseauio volume scale, the requested
volume is high precision and hardware volume  usually cannot satisfy and have
to use software volume which need rewind to re calculate data 

https://bugs.freedesktop.org/show_bug.cgi?id=46236#c5


(  20.557|   0.094) D: [pulseaudio] protocol-native.c: Client pavucontrol
changes volume of sink
alsa_output.usb-045e_Microsoft_LifeChat_LX-3000-00-LX3000.analog-stereo.
(  20.557|   0.000) D: [alsa-sink] alsa-sink.c: Requested volume: 0:   0% 1:  
0%
(  20.557|   0.000) D: [alsa-sink] alsa-sink.c:            in dB: 0: -inf dB 1:
-inf dB
(  20.557|   0.000) D: [alsa-sink] alsa-sink.c: Got hardware volume: 0:  34% 1:
 34%
(  20.557|   0.000) D: [alsa-sink] alsa-sink.c:               in dB: 0: -28.31
dB 1: -28.31 dB
(  20.557|   0.000) D: [alsa-sink] alsa-sink.c: Calculated software volume: 0: 
 0% 1:   0% (accurate-enough=no)
(  20.557|   0.000) D: [alsa-sink] alsa-sink.c:                      in dB: 0:
-inf dB 1: -inf dB
(  20.557|   0.000) D: [alsa-sink] sink.c: Volume going down to 0 at
519702599072
(  20.557|   0.000) D: [alsa-sink] alsa-sink.c: Requested to rewind 352800
bytes.
(  20.557|   0.000) D: [alsa-sink] alsa-sink.c: Limited to 3272 bytes.
(  20.557|   0.000) D: [alsa-sink] alsa-sink.c: before: 818
(  20.557|   0.000) D: [alsa-sink] alsa-sink.c: after: 818
(  20.557|   0.000) D: [alsa-sink] alsa-sink.c: Rewound 3272 bytes.
(  20.557|   0.000) D: [alsa-sink] sink.c: Processing rewind...
(  20.557|   0.000) D: [alsa-sink] sink.c: latency = 8982
(  20.557|   0.000) D: [alsa-sink] sink-input.c: Have to rewind 3272 bytes on
render memblockq.
(  20.557|   0.000) D: [alsa-sink] sink-input.c: Have to rewind 3272 bytes on
implementor.
(  20.557|   0.000) D: [alsa-sink] sink-input.c: Have to rewind 3272 bytes on
render memblockq.
(  20.557|   0.000) D: [alsa-sink] source.c: Processing rewind...
(  20.557|   0.000) I: [pulseaudio] module-device-restore.c: Storing
volume/mute for device+port
sink:alsa_output.usb-045e_Microsoft_LifeChat_LX-3000-00-LX3000.analog-stereo:analog-output-speaker.
(  20.558|   0.000) D: [alsa-sink] sink.c: Volume change to 0 at 519702580528
was written 60 usec late
(  20.558|   0.000) D: [alsa-sink] alsa-sink.c: Written HW volume did not match
with the request: 0:   0% 1:   0% (request) != 0:  34% 1:  34%
(  20.558|   0.000) D: [alsa-sink] alsa-sink.c:                                
           in dB: 0: -inf dB 1: -inf dB (request) != 0: -28.31 dB 1: -28.31 dB

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