control.5 {
iface MIXER
name 'Analog Front Playback Volume'
value.0 207
value.1 207
comment {
access 'read write'
type INTEGER
count 2
range '0 - 255'
dbmin -9999999
dbmax 1200
dbvalue.0 0
dbvalue.1 0
}
}
control.6 {
iface MIXER
name 'Analog Rear Playback Volume'
value.0 207
value.1 207
comment {
access 'read write'
type INTEGER
count 2
range '0 - 255'
dbmin -9999999
dbmax 1200
dbvalue.0 0
dbvalue.1 0
}
}
control.7 {
iface MIXER
name 'Analog Center/LFE Playback Volume'
value.0 207
value.1 207
comment {
access 'read write'
type INTEGER
count 2
range '0 - 255'
dbmin -9999999
dbmax 1200
dbvalue.0 0
dbvalue.1 0
}
}
control.8 {
iface MIXER
name 'Analog Side Playback Volume'
value.0 205
value.1 205
comment {
access 'read write'
type INTEGER
count 2
range '0 - 255'
dbmin -9999999
dbmax 1200
dbvalue.0 -50
dbvalue.1 -50
}
}
dB min is -99999.99 which is equialemnt to mute
https://git.kernel.org/cgit/linux/kernel/git/tiwai/sound.git/tree/include/sound/tlv.h
#define TLV_DB_GAIN_MUTE -9999999
http://git.alsa-project.org/?p=alsa-lib.git;a=blob;f=include/control.h;hb=HEAD
/** Mute state */
#define SND_CTL_TLV_DB_GAIN_MUTE -9999999
https://bugs.freedesktop.org/enter_bug.cgi?product=PulseAudio
you have to open pulseaudio bug report if pulseaudio dB min is less
than -99999.99
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https://bugs.launchpad.net/bugs/1497666
Title:
No right channel sound on Creative Xtreme Audio (CA0106) in Ubuntu
14.04-15.10
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