'Twas brillig, and Raymond Yau at 06/06/10 01:12 did gyre and gimble:
> 2010/5/28 Colin Guthrie <gmane@xxxxxxxxxxxxxx>
>
>> 'Twas brillig, and Colin Guthrie at 27/05/10 15:43 did gyre and gimble:
>>> PA should play nice with the softvol plugin so I don't think this is the
>>> bit that is at fault.
>>>
>>> I strongly suspect that the reason has already been correctly identified
>>> a while ago, which is that this card considers -48dB silent where as PA
>>> assumes this level is -200dB. I believe it was Raymond who pointed out
>>> the -48dB level in the HDA spec before on this list.
>>>
>>
>
> if floating point 0.0 is -inf dB , and 1.0 is 0dB ,
>
> 0.5 is -6dB , 0.25 is -12 dB , 0.125 is -24dB and 0.0625 is -48dB
This is just a pure mapping from dB->linear, but as this linear mapping
is generally not "natural" there are several different approaches to
presenting this to users. In PA, a cubic mapping is used on top of this
basic conversion, to map to the percentage scale (0.0 to 1.0 if you like).
So I'm not sure what point you're making by providing these numbers. Can
you explain?
> how can PA master volume control at 10~15% equivalent to HDA 's -48dB ?
Not sure what you mean here, but I suspect it's the cubic mapping that
is confusing you.
Here is the function in PA's pulse/volume.c:
pa_volume_t pa_sw_volume_from_linear(double v) {
if (v <= 0.0)
return PA_VOLUME_MUTED;
/*
* We use a cubic mapping here, as suggested and discussed here:
*
* http://www.robotplanet.dk/audio/audio_gui_design/
*
http://lists.linuxaudio.org/pipermail/linux-audio-dev/2009-May/thread.html#23151
*
* We make sure that the conversion to linear and back yields the
* same volume value! That's why we need the lround() below!
*/
return (pa_volume_t) lround(cbrt(v) * PA_VOLUME_NORM);
}
> Can you provide the pulseaudio log when you change the volume from 100% to
> 0% ?
I can provide the actual log output if you like but here is the output
from the following command:
(for i in 100 95 90 85 80 75 70 65 60 55 50 45 40 35 30 25 20 19 18 17
16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0; do echo
"============================== $i% =============="; amixer set Master
$i%>/dev/null; amixer -c0 get Master; amixer -c0 get PCM; echo
"PulseAudio:"; pacmd list-sinks| grep "index: 11" -A 13; done) 2>&1
>volume-test.txt
This basically sets the volume (via alsa->pulse plugin, but that's just
for convenience!) all the way down to 0. I get more fine grained below
20 as that is the interesting zone.
The output shows the scaling from 100% where both Master and PCM are
0dB, up to the point at around 16% where the Master channel is maxed out
at -46.5dB (0%) and PA starts instead manipulating the PCM control to
get more of it's range (up until this point PCM was only used to gain
more accuracy - i.e. when Master alone did not provide as fine grained a
setting as was needed; in this scenario, PA will use the PCM control to
get more accuracy and, if needed, it will also use software scaling on
top of that: for more info about this works see:
http://pulseaudio.org/wiki/PulseAudioStoleMyVolumes).
As you can see from the output, by the time we reach 2%, both Master and
PCM are fully maxed out at -46.5dB and -51dB respectively. At this point
PA wants a volume of -101.93dB, so that means that -101.93 -
(-51+-46.5=-96.5) = -5.43 dB is performed in software.
By 1%, the software component of the reduction increases to -23.47dB to
give a total of -119.97dB. By 0% we reach -inf dB
Obviously the fact that the chip basically cuts off any audio when the
Master slider hits 0 (or perhaps when the combined volume reaches -48dB
- it's hard to tell) doesn't really play nicely with the real value of
-inf which we attempt to reach.
I'm not sure where this problem needs to be fixed. Oviously having a
Master and PCM slider whose range is far greater than the value of -48dB
is pointless. This configuration means that there are numerous "zero
point" configurations of the two sliders beyond which any further change
in value is useless. So disregarding PA completely, this setup is not ideal.
When PA is used, the value for -inf is actually configured by the system
and we attempt to scale to -inf (albeit via a cubic mapping from
percentage). If the volume literally cuts out at -48dB when dealing with
the h/w mixers, then there is a problem, but by the same token if the
-48dB level really is more like the silence we want to represent, then
perhaps trying to scale to -inf is pointless in itself and really the
range of the scale used in PA should be adjusted.
I don't know enough about this side of things to comment more accurately
than this, so when LinuxTag is over, hopefully Lennart can comment a bit
on this thread to add his opinions to the mix.
Col
Col
--
Colin Guthrie
gmane(at)colin.guthr.ie
http://colin.guthr.ie/
Day Job:
Tribalogic Limited [http://www.tribalogic.net/]
Open Source:
Mandriva Linux Contributor [http://www.mandriva.com/]
PulseAudio Hacker [http://www.pulseaudio.org/]
Trac Hacker [http://trac.edgewall.org/]
============================== 100% ==============
Simple mixer control 'Master',0
Capabilities: pvolume pswitch penum
Playback channels: Front Left - Front Right
Limits: Playback 0 - 31
Mono:
Front Left: Playback 31 [100%] [0.00dB] [on]
Front Right: Playback 31 [100%] [0.00dB] [on]
Simple mixer control 'PCM',0
Capabilities: pvolume penum
Playback channels: Front Left - Front Right
Limits: Playback 0 - 255
Mono:
Front Left: Playback 255 [100%] [0.00dB]
Front Right: Playback 255 [100%] [0.00dB]
PulseAudio:
* index: 11
name: <alsa_output.pci-0000_00_1b.0.analog-stereo>
driver: <module-alsa-card.c>
flags: HARDWARE HW_MUTE_CTRL HW_VOLUME_CTRL DECIBEL_VOLUME LATENCY FLAT_VOLUME DYNAMIC_LATENCY
state: IDLE
suspend cause:
priority: 9959
volume: 0: 100% 1: 100%
0: 0.00 dB 1: 0.00 dB
balance 0.00
base volume: 100%
0.00 dB
volume steps: 65537
muted: no
============================== 95% ==============
Simple mixer control 'Master',0
Capabilities: pvolume pswitch penum
Playback channels: Front Left - Front Right
Limits: Playback 0 - 31
Mono:
Front Left: Playback 31 [100%] [0.00dB] [on]
Front Right: Playback 31 [100%] [0.00dB] [on]
Simple mixer control 'PCM',0
Capabilities: pvolume penum
Playback channels: Front Left - Front Right
Limits: Playback 0 - 255
Mono:
Front Left: Playback 249 [98%] [-1.20dB]
Front Right: Playback 249 [98%] [-1.20dB]
PulseAudio:
* index: 11
name: <alsa_output.pci-0000_00_1b.0.analog-stereo>
driver: <module-alsa-card.c>
flags: HARDWARE HW_MUTE_CTRL HW_VOLUME_CTRL DECIBEL_VOLUME LATENCY FLAT_VOLUME DYNAMIC_LATENCY
state: IDLE
suspend cause:
priority: 9959
volume: 0: 95% 1: 95%
0: -1.34 dB 1: -1.34 dB
balance 0.00
base volume: 100%
0.00 dB
volume steps: 65537
muted: no
============================== 90% ==============
Simple mixer control 'Master',0
Capabilities: pvolume pswitch penum
Playback channels: Front Left - Front Right
Limits: Playback 0 - 31
Mono:
Front Left: Playback 30 [97%] [-1.50dB] [on]
Front Right: Playback 30 [97%] [-1.50dB] [on]
Simple mixer control 'PCM',0
Capabilities: pvolume penum
Playback channels: Front Left - Front Right
Limits: Playback 0 - 255
Mono:
Front Left: Playback 249 [98%] [-1.20dB]
Front Right: Playback 249 [98%] [-1.20dB]
PulseAudio:
* index: 11
name: <alsa_output.pci-0000_00_1b.0.analog-stereo>
driver: <module-alsa-card.c>
flags: HARDWARE HW_MUTE_CTRL HW_VOLUME_CTRL DECIBEL_VOLUME LATENCY FLAT_VOLUME DYNAMIC_LATENCY
state: IDLE
suspend cause:
priority: 9959
volume: 0: 90% 1: 90%
0: -2.75 dB 1: -2.75 dB
balance 0.00
base volume: 100%
0.00 dB
volume steps: 65537
muted: no
============================== 85% ==============
Simple mixer control 'Master',0
Capabilities: pvolume pswitch penum
Playback channels: Front Left - Front Right
Limits: Playback 0 - 31
Mono:
Front Left: Playback 29 [94%] [-3.00dB] [on]
Front Right: Playback 29 [94%] [-3.00dB] [on]
Simple mixer control 'PCM',0
Capabilities: pvolume penum
Playback channels: Front Left - Front Right
Limits: Playback 0 - 255
Mono:
Front Left: Playback 249 [98%] [-1.20dB]
Front Right: Playback 249 [98%] [-1.20dB]
PulseAudio:
* index: 11
name: <alsa_output.pci-0000_00_1b.0.analog-stereo>
driver: <module-alsa-card.c>
flags: HARDWARE HW_MUTE_CTRL HW_VOLUME_CTRL DECIBEL_VOLUME LATENCY FLAT_VOLUME DYNAMIC_LATENCY
state: IDLE
suspend cause:
priority: 9959
volume: 0: 85% 1: 85%
0: -4.23 dB 1: -4.23 dB
balance 0.00
base volume: 100%
0.00 dB
volume steps: 65537
muted: no
============================== 80% ==============
Simple mixer control 'Master',0
Capabilities: pvolume pswitch penum
Playback channels: Front Left - Front Right
Limits: Playback 0 - 31
Mono:
Front Left: Playback 28 [90%] [-4.50dB] [on]
Front Right: Playback 28 [90%] [-4.50dB] [on]
Simple mixer control 'PCM',0
Capabilities: pvolume penum
Playback channels: Front Left - Front Right
Limits: Playback 0 - 255
Mono:
Front Left: Playback 249 [98%] [-1.20dB]
Front Right: Playback 249 [98%] [-1.20dB]
PulseAudio:
* index: 11
name: <alsa_output.pci-0000_00_1b.0.analog-stereo>
driver: <module-alsa-card.c>
flags: HARDWARE HW_MUTE_CTRL HW_VOLUME_CTRL DECIBEL_VOLUME LATENCY FLAT_VOLUME DYNAMIC_LATENCY
state: IDLE
suspend cause:
priority: 9959
volume: 0: 80% 1: 80%
0: -5.81 dB 1: -5.81 dB
balance 0.00
base volume: 100%
0.00 dB
volume steps: 65537
muted: no
============================== 75% ==============
Simple mixer control 'Master',0
Capabilities: pvolume pswitch penum
Playback channels: Front Left - Front Right
Limits: Playback 0 - 31
Mono:
Front Left: Playback 27 [87%] [-6.00dB] [on]
Front Right: Playback 27 [87%] [-6.00dB] [on]
Simple mixer control 'PCM',0
Capabilities: pvolume penum
Playback channels: Front Left - Front Right
Limits: Playback 0 - 255
Mono:
Front Left: Playback 248 [97%] [-1.40dB]
Front Right: Playback 248 [97%] [-1.40dB]
PulseAudio:
* index: 11
name: <alsa_output.pci-0000_00_1b.0.analog-stereo>
driver: <module-alsa-card.c>
flags: HARDWARE HW_MUTE_CTRL HW_VOLUME_CTRL DECIBEL_VOLUME LATENCY FLAT_VOLUME DYNAMIC_LATENCY
state: IDLE
suspend cause:
priority: 9959
volume: 0: 75% 1: 75%
0: -7.50 dB 1: -7.50 dB
balance 0.00
base volume: 100%
0.00 dB
volume steps: 65537
muted: no
============================== 70% ==============
Simple mixer control 'Master',0
Capabilities: pvolume pswitch penum
Playback channels: Front Left - Front Right
Limits: Playback 0 - 31
Mono:
Front Left: Playback 25 [81%] [-9.00dB] [on]
Front Right: Playback 25 [81%] [-9.00dB] [on]
Simple mixer control 'PCM',0
Capabilities: pvolume penum
Playback channels: Front Left - Front Right
Limits: Playback 0 - 255
Mono:
Front Left: Playback 254 [100%] [0.20dB]
Front Right: Playback 254 [100%] [0.20dB]
PulseAudio:
* index: 11
name: <alsa_output.pci-0000_00_1b.0.analog-stereo>
driver: <module-alsa-card.c>
flags: HARDWARE HW_MUTE_CTRL HW_VOLUME_CTRL DECIBEL_VOLUME LATENCY FLAT_VOLUME DYNAMIC_LATENCY
state: IDLE
suspend cause:
priority: 9959
volume: 0: 70% 1: 70%
0: -9.29 dB 1: -9.29 dB
balance 0.00
base volume: 100%
0.00 dB
volume steps: 65537
muted: no
============================== 65% ==============
Simple mixer control 'Master',0
Capabilities: pvolume pswitch penum
Playback channels: Front Left - Front Right
Limits: Playback 0 - 31
Mono:
Front Left: Playback 24 [77%] [-10.50dB] [on]
Front Right: Playback 24 [77%] [-10.50dB] [on]
Simple mixer control 'PCM',0
Capabilities: pvolume penum
Playback channels: Front Left - Front Right
Limits: Playback 0 - 255
Mono:
Front Left: Playback 252 [99%] [0.60dB]
Front Right: Playback 252 [99%] [0.60dB]
PulseAudio:
* index: 11
name: <alsa_output.pci-0000_00_1b.0.analog-stereo>
driver: <module-alsa-card.c>
flags: HARDWARE HW_MUTE_CTRL HW_VOLUME_CTRL DECIBEL_VOLUME LATENCY FLAT_VOLUME DYNAMIC_LATENCY
state: IDLE
suspend cause:
priority: 9959
volume: 0: 65% 1: 65%
0: -11.22 dB 1: -11.22 dB
balance 0.00
base volume: 100%
0.00 dB
volume steps: 65537
muted: no
============================== 60% ==============
Simple mixer control 'Master',0
Capabilities: pvolume pswitch penum
Playback channels: Front Left - Front Right
Limits: Playback 0 - 31
Mono:
Front Left: Playback 23 [74%] [-12.00dB] [on]
Front Right: Playback 23 [74%] [-12.00dB] [on]
Simple mixer control 'PCM',0
Capabilities: pvolume penum
Playback channels: Front Left - Front Right
Limits: Playback 0 - 255
Mono:
Front Left: Playback 249 [98%] [-1.20dB]
Front Right: Playback 249 [98%] [-1.20dB]
PulseAudio:
* index: 11
name: <alsa_output.pci-0000_00_1b.0.analog-stereo>
driver: <module-alsa-card.c>
flags: HARDWARE HW_MUTE_CTRL HW_VOLUME_CTRL DECIBEL_VOLUME LATENCY FLAT_VOLUME DYNAMIC_LATENCY
state: IDLE
suspend cause:
priority: 9959
volume: 0: 60% 1: 60%
0: -13.31 dB 1: -13.31 dB
balance 0.00
base volume: 100%
0.00 dB
volume steps: 65537
muted: no
============================== 55% ==============
Simple mixer control 'Master',0
Capabilities: pvolume pswitch penum
Playback channels: Front Left - Front Right
Limits: Playback 0 - 31
Mono:
Front Left: Playback 21 [68%] [-15.00dB] [on]
Front Right: Playback 21 [68%] [-15.00dB] [on]
Simple mixer control 'PCM',0
Capabilities: pvolume penum
Playback channels: Front Left - Front Right
Limits: Playback 0 - 255
Mono:
Front Left: Playback 253 [99%] [0.40dB]
Front Right: Playback 253 [99%] [0.40dB]
PulseAudio:
* index: 11
name: <alsa_output.pci-0000_00_1b.0.analog-stereo>
driver: <module-alsa-card.c>
flags: HARDWARE HW_MUTE_CTRL HW_VOLUME_CTRL DECIBEL_VOLUME LATENCY FLAT_VOLUME DYNAMIC_LATENCY
state: IDLE
suspend cause:
priority: 9959
volume: 0: 55% 1: 55%
0: -15.58 dB 1: -15.58 dB
balance 0.00
base volume: 100%
0.00 dB
volume steps: 65537
muted: no
============================== 50% ==============
Simple mixer control 'Master',0
Capabilities: pvolume pswitch penum
Playback channels: Front Left - Front Right
Limits: Playback 0 - 31
Mono:
Front Left: Playback 19 [61%] [-18.00dB] [on]
Front Right: Playback 19 [61%] [-18.00dB] [on]
Simple mixer control 'PCM',0
Capabilities: pvolume penum
Playback channels: Front Left - Front Right
Limits: Playback 0 - 255
Mono:
Front Left: Playback 255 [100%] [0.00dB]
Front Right: Playback 255 [100%] [0.00dB]
PulseAudio:
* index: 11
name: <alsa_output.pci-0000_00_1b.0.analog-stereo>
driver: <module-alsa-card.c>
flags: HARDWARE HW_MUTE_CTRL HW_VOLUME_CTRL DECIBEL_VOLUME LATENCY FLAT_VOLUME DYNAMIC_LATENCY
state: IDLE
suspend cause:
priority: 9959
volume: 0: 50% 1: 50%
0: -18.06 dB 1: -18.06 dB
balance 0.00
base volume: 100%
0.00 dB
volume steps: 65537
muted: no
============================== 45% ==============
Simple mixer control 'Master',0
Capabilities: pvolume pswitch penum
Playback channels: Front Left - Front Right
Limits: Playback 0 - 31
Mono:
Front Left: Playback 18 [58%] [-19.50dB] [on]
Front Right: Playback 18 [58%] [-19.50dB] [on]
Simple mixer control 'PCM',0
Capabilities: pvolume penum
Playback channels: Front Left - Front Right
Limits: Playback 0 - 255
Mono:
Front Left: Playback 249 [98%] [-1.20dB]
Front Right: Playback 249 [98%] [-1.20dB]
PulseAudio:
* index: 11
name: <alsa_output.pci-0000_00_1b.0.analog-stereo>
driver: <module-alsa-card.c>
flags: HARDWARE HW_MUTE_CTRL HW_VOLUME_CTRL DECIBEL_VOLUME LATENCY FLAT_VOLUME DYNAMIC_LATENCY
state: IDLE
suspend cause:
priority: 9959
volume: 0: 45% 1: 45%
0: -20.81 dB 1: -20.81 dB
balance 0.00
base volume: 100%
0.00 dB
volume steps: 65537
muted: no
============================== 40% ==============
Simple mixer control 'Master',0
Capabilities: pvolume pswitch penum
Playback channels: Front Left - Front Right
Limits: Playback 0 - 31
Mono:
Front Left: Playback 16 [52%] [-22.50dB] [on]
Front Right: Playback 16 [52%] [-22.50dB] [on]
Simple mixer control 'PCM',0
Capabilities: pvolume penum
Playback channels: Front Left - Front Right
Limits: Playback 0 - 255
Mono:
Front Left: Playback 249 [98%] [-1.20dB]
Front Right: Playback 249 [98%] [-1.20dB]
PulseAudio:
* index: 11
name: <alsa_output.pci-0000_00_1b.0.analog-stereo>
driver: <module-alsa-card.c>
flags: HARDWARE HW_MUTE_CTRL HW_VOLUME_CTRL DECIBEL_VOLUME LATENCY FLAT_VOLUME DYNAMIC_LATENCY
state: IDLE
suspend cause:
priority: 9959
volume: 0: 40% 1: 40%
0: -23.88 dB 1: -23.88 dB
balance 0.00
base volume: 100%
0.00 dB
volume steps: 65537
muted: no
============================== 35% ==============
Simple mixer control 'Master',0
Capabilities: pvolume pswitch penum
Playback channels: Front Left - Front Right
Limits: Playback 0 - 31
Mono:
Front Left: Playback 13 [42%] [-27.00dB] [on]
Front Right: Playback 13 [42%] [-27.00dB] [on]
Simple mixer control 'PCM',0
Capabilities: pvolume penum
Playback channels: Front Left - Front Right
Limits: Playback 0 - 255
Mono:
Front Left: Playback 254 [100%] [0.20dB]
Front Right: Playback 254 [100%] [0.20dB]
PulseAudio:
* index: 11
name: <alsa_output.pci-0000_00_1b.0.analog-stereo>
driver: <module-alsa-card.c>
flags: HARDWARE HW_MUTE_CTRL HW_VOLUME_CTRL DECIBEL_VOLUME LATENCY FLAT_VOLUME DYNAMIC_LATENCY
state: IDLE
suspend cause:
priority: 9959
volume: 0: 35% 1: 35%
0: -27.36 dB 1: -27.36 dB
balance 0.00
base volume: 100%
0.00 dB
volume steps: 65537
muted: no
============================== 30% ==============
Simple mixer control 'Master',0
Capabilities: pvolume pswitch penum
Playback channels: Front Left - Front Right
Limits: Playback 0 - 31
Mono:
Front Left: Playback 11 [35%] [-30.00dB] [on]
Front Right: Playback 11 [35%] [-30.00dB] [on]
Simple mixer control 'PCM',0
Capabilities: pvolume penum
Playback channels: Front Left - Front Right
Limits: Playback 0 - 255
Mono:
Front Left: Playback 249 [98%] [-1.20dB]
Front Right: Playback 249 [98%] [-1.20dB]
PulseAudio:
* index: 11
name: <alsa_output.pci-0000_00_1b.0.analog-stereo>
driver: <module-alsa-card.c>
flags: HARDWARE HW_MUTE_CTRL HW_VOLUME_CTRL DECIBEL_VOLUME LATENCY FLAT_VOLUME DYNAMIC_LATENCY
state: IDLE
suspend cause:
priority: 9959
volume: 0: 30% 1: 30%
0: -31.37 dB 1: -31.37 dB
balance 0.00
base volume: 100%
0.00 dB
volume steps: 65537
muted: no
============================== 25% ==============
Simple mixer control 'Master',0
Capabilities: pvolume pswitch penum
Playback channels: Front Left - Front Right
Limits: Playback 0 - 31
Mono:
Front Left: Playback 7 [23%] [-36.00dB] [on]
Front Right: Playback 7 [23%] [-36.00dB] [on]
Simple mixer control 'PCM',0
Capabilities: pvolume penum
Playback channels: Front Left - Front Right
Limits: Playback 0 - 255
Mono:
Front Left: Playback 255 [100%] [0.00dB]
Front Right: Playback 255 [100%] [0.00dB]
PulseAudio:
* index: 11
name: <alsa_output.pci-0000_00_1b.0.analog-stereo>
driver: <module-alsa-card.c>
flags: HARDWARE HW_MUTE_CTRL HW_VOLUME_CTRL DECIBEL_VOLUME LATENCY FLAT_VOLUME DYNAMIC_LATENCY
state: IDLE
suspend cause:
priority: 9959
volume: 0: 25% 1: 25%
0: -36.12 dB 1: -36.12 dB
balance 0.00
base volume: 100%
0.00 dB
volume steps: 65537
muted: no
============================== 20% ==============
Simple mixer control 'Master',0
Capabilities: pvolume pswitch penum
Playback channels: Front Left - Front Right
Limits: Playback 0 - 31
Mono:
Front Left: Playback 4 [13%] [-40.50dB] [on]
Front Right: Playback 4 [13%] [-40.50dB] [on]
Simple mixer control 'PCM',0
Capabilities: pvolume penum
Playback channels: Front Left - Front Right
Limits: Playback 0 - 255
Mono:
Front Left: Playback 248 [97%] [-1.40dB]
Front Right: Playback 248 [97%] [-1.40dB]
PulseAudio:
* index: 11
name: <alsa_output.pci-0000_00_1b.0.analog-stereo>
driver: <module-alsa-card.c>
flags: HARDWARE HW_MUTE_CTRL HW_VOLUME_CTRL DECIBEL_VOLUME LATENCY FLAT_VOLUME DYNAMIC_LATENCY
state: IDLE
suspend cause:
priority: 9959
volume: 0: 20% 1: 20%
0: -41.94 dB 1: -41.94 dB
balance 0.00
base volume: 100%
0.00 dB
volume steps: 65537
muted: no
============================== 19% ==============
Simple mixer control 'Master',0
Capabilities: pvolume pswitch penum
Playback channels: Front Left - Front Right
Limits: Playback 0 - 31
Mono:
Front Left: Playback 3 [10%] [-42.00dB] [on]
Front Right: Playback 3 [10%] [-42.00dB] [on]
Simple mixer control 'PCM',0
Capabilities: pvolume penum
Playback channels: Front Left - Front Right
Limits: Playback 0 - 255
Mono:
Front Left: Playback 249 [98%] [-1.20dB]
Front Right: Playback 249 [98%] [-1.20dB]
PulseAudio:
* index: 11
name: <alsa_output.pci-0000_00_1b.0.analog-stereo>
driver: <module-alsa-card.c>
flags: HARDWARE HW_MUTE_CTRL HW_VOLUME_CTRL DECIBEL_VOLUME LATENCY FLAT_VOLUME DYNAMIC_LATENCY
state: IDLE
suspend cause:
priority: 9959
volume: 0: 19% 1: 19%
0: -43.27 dB 1: -43.27 dB
balance 0.00
base volume: 100%
0.00 dB
volume steps: 65537
muted: no
============================== 18% ==============
Simple mixer control 'Master',0
Capabilities: pvolume pswitch penum
Playback channels: Front Left - Front Right
Limits: Playback 0 - 31
Mono:
Front Left: Playback 2 [6%] [-43.50dB] [on]
Front Right: Playback 2 [6%] [-43.50dB] [on]
Simple mixer control 'PCM',0
Capabilities: pvolume penum
Playback channels: Front Left - Front Right
Limits: Playback 0 - 255
Mono:
Front Left: Playback 250 [98%] [-1.00dB]
Front Right: Playback 250 [98%] [-1.00dB]
PulseAudio:
* index: 11
name: <alsa_output.pci-0000_00_1b.0.analog-stereo>
driver: <module-alsa-card.c>
flags: HARDWARE HW_MUTE_CTRL HW_VOLUME_CTRL DECIBEL_VOLUME LATENCY FLAT_VOLUME DYNAMIC_LATENCY
state: IDLE
suspend cause:
priority: 9959
volume: 0: 18% 1: 18%
0: -44.68 dB 1: -44.68 dB
balance 0.00
base volume: 100%
0.00 dB
volume steps: 65537
muted: no
============================== 17% ==============
Simple mixer control 'Master',0
Capabilities: pvolume pswitch penum
Playback channels: Front Left - Front Right
Limits: Playback 0 - 31
Mono:
Front Left: Playback 1 [3%] [-45.00dB] [on]
Front Right: Playback 1 [3%] [-45.00dB] [on]
Simple mixer control 'PCM',0
Capabilities: pvolume penum
Playback channels: Front Left - Front Right
Limits: Playback 0 - 255
Mono:
Front Left: Playback 250 [98%] [-1.00dB]
Front Right: Playback 250 [98%] [-1.00dB]
PulseAudio:
* index: 11
name: <alsa_output.pci-0000_00_1b.0.analog-stereo>
driver: <module-alsa-card.c>
flags: HARDWARE HW_MUTE_CTRL HW_VOLUME_CTRL DECIBEL_VOLUME LATENCY FLAT_VOLUME DYNAMIC_LATENCY
state: IDLE
suspend cause:
priority: 9959
volume: 0: 17% 1: 17%
0: -46.17 dB 1: -46.17 dB
balance 0.00
base volume: 100%
0.00 dB
volume steps: 65537
muted: no
============================== 16% ==============
Simple mixer control 'Master',0
Capabilities: pvolume pswitch penum
Playback channels: Front Left - Front Right
Limits: Playback 0 - 31
Mono:
Front Left: Playback 0 [0%] [-46.50dB] [on]
Front Right: Playback 0 [0%] [-46.50dB] [on]
Simple mixer control 'PCM',0
Capabilities: pvolume penum
Playback channels: Front Left - Front Right
Limits: Playback 0 - 255
Mono:
Front Left: Playback 249 [98%] [-1.20dB]
Front Right: Playback 249 [98%] [-1.20dB]
PulseAudio:
* index: 11
name: <alsa_output.pci-0000_00_1b.0.analog-stereo>
driver: <module-alsa-card.c>
flags: HARDWARE HW_MUTE_CTRL HW_VOLUME_CTRL DECIBEL_VOLUME LATENCY FLAT_VOLUME DYNAMIC_LATENCY
state: IDLE
suspend cause:
priority: 9959
volume: 0: 16% 1: 16%
0: -47.75 dB 1: -47.75 dB
balance 0.00
base volume: 100%
0.00 dB
volume steps: 65537
muted: no
============================== 15% ==============
Simple mixer control 'Master',0
Capabilities: pvolume pswitch penum
Playback channels: Front Left - Front Right
Limits: Playback 0 - 31
Mono:
Front Left: Playback 0 [0%] [-46.50dB] [on]
Front Right: Playback 0 [0%] [-46.50dB] [on]
Simple mixer control 'PCM',0
Capabilities: pvolume penum
Playback channels: Front Left - Front Right
Limits: Playback 0 - 255
Mono:
Front Left: Playback 241 [95%] [-2.80dB]
Front Right: Playback 241 [95%] [-2.80dB]
PulseAudio:
* index: 11
name: <alsa_output.pci-0000_00_1b.0.analog-stereo>
driver: <module-alsa-card.c>
flags: HARDWARE HW_MUTE_CTRL HW_VOLUME_CTRL DECIBEL_VOLUME LATENCY FLAT_VOLUME DYNAMIC_LATENCY
state: IDLE
suspend cause:
priority: 9959
volume: 0: 15% 1: 15%
0: -49.43 dB 1: -49.43 dB
balance 0.00
base volume: 100%
0.00 dB
volume steps: 65537
muted: no
============================== 14% ==============
Simple mixer control 'Master',0
Capabilities: pvolume pswitch penum
Playback channels: Front Left - Front Right
Limits: Playback 0 - 31
Mono:
Front Left: Playback 0 [0%] [-46.50dB] [on]
Front Right: Playback 0 [0%] [-46.50dB] [on]
Simple mixer control 'PCM',0
Capabilities: pvolume penum
Playback channels: Front Left - Front Right
Limits: Playback 0 - 255
Mono:
Front Left: Playback 232 [91%] [-4.60dB]
Front Right: Playback 232 [91%] [-4.60dB]
PulseAudio:
* index: 11
name: <alsa_output.pci-0000_00_1b.0.analog-stereo>
driver: <module-alsa-card.c>
flags: HARDWARE HW_MUTE_CTRL HW_VOLUME_CTRL DECIBEL_VOLUME LATENCY FLAT_VOLUME DYNAMIC_LATENCY
state: IDLE
suspend cause:
priority: 9959
volume: 0: 14% 1: 14%
0: -51.23 dB 1: -51.23 dB
balance 0.00
base volume: 100%
0.00 dB
volume steps: 65537
muted: no
============================== 13% ==============
Simple mixer control 'Master',0
Capabilities: pvolume pswitch penum
Playback channels: Front Left - Front Right
Limits: Playback 0 - 31
Mono:
Front Left: Playback 0 [0%] [-46.50dB] [on]
Front Right: Playback 0 [0%] [-46.50dB] [on]
Simple mixer control 'PCM',0
Capabilities: pvolume penum
Playback channels: Front Left - Front Right
Limits: Playback 0 - 255
Mono:
Front Left: Playback 222 [87%] [-6.60dB]
Front Right: Playback 222 [87%] [-6.60dB]
PulseAudio:
* index: 11
name: <alsa_output.pci-0000_00_1b.0.analog-stereo>
driver: <module-alsa-card.c>
flags: HARDWARE HW_MUTE_CTRL HW_VOLUME_CTRL DECIBEL_VOLUME LATENCY FLAT_VOLUME DYNAMIC_LATENCY
state: IDLE
suspend cause:
priority: 9959
volume: 0: 13% 1: 13%
0: -53.16 dB 1: -53.16 dB
balance 0.00
base volume: 100%
0.00 dB
volume steps: 65537
muted: no
============================== 12% ==============
Simple mixer control 'Master',0
Capabilities: pvolume pswitch penum
Playback channels: Front Left - Front Right
Limits: Playback 0 - 31
Mono:
Front Left: Playback 0 [0%] [-46.50dB] [on]
Front Right: Playback 0 [0%] [-46.50dB] [on]
Simple mixer control 'PCM',0
Capabilities: pvolume penum
Playback channels: Front Left - Front Right
Limits: Playback 0 - 255
Mono:
Front Left: Playback 212 [83%] [-8.60dB]
Front Right: Playback 212 [83%] [-8.60dB]
PulseAudio:
* index: 11
name: <alsa_output.pci-0000_00_1b.0.analog-stereo>
driver: <module-alsa-card.c>
flags: HARDWARE HW_MUTE_CTRL HW_VOLUME_CTRL DECIBEL_VOLUME LATENCY FLAT_VOLUME DYNAMIC_LATENCY
state: IDLE
suspend cause:
priority: 9959
volume: 0: 12% 1: 12%
0: -55.25 dB 1: -55.25 dB
balance 0.00
base volume: 100%
0.00 dB
volume steps: 65537
muted: no
============================== 11% ==============
Simple mixer control 'Master',0
Capabilities: pvolume pswitch penum
Playback channels: Front Left - Front Right
Limits: Playback 0 - 31
Mono:
Front Left: Playback 0 [0%] [-46.50dB] [on]
Front Right: Playback 0 [0%] [-46.50dB] [on]
Simple mixer control 'PCM',0
Capabilities: pvolume penum
Playback channels: Front Left - Front Right
Limits: Playback 0 - 255
Mono:
Front Left: Playback 200 [78%] [-11.00dB]
Front Right: Playback 200 [78%] [-11.00dB]
PulseAudio:
* index: 11
name: <alsa_output.pci-0000_00_1b.0.analog-stereo>
driver: <module-alsa-card.c>
flags: HARDWARE HW_MUTE_CTRL HW_VOLUME_CTRL DECIBEL_VOLUME LATENCY FLAT_VOLUME DYNAMIC_LATENCY
state: IDLE
suspend cause:
priority: 9959
volume: 0: 11% 1: 11%
0: -57.52 dB 1: -57.52 dB
balance 0.00
base volume: 100%
0.00 dB
volume steps: 65537
muted: no
============================== 10% ==============
Simple mixer control 'Master',0
Capabilities: pvolume pswitch penum
Playback channels: Front Left - Front Right
Limits: Playback 0 - 31
Mono:
Front Left: Playback 0 [0%] [-46.50dB] [on]
Front Right: Playback 0 [0%] [-46.50dB] [on]
Simple mixer control 'PCM',0
Capabilities: pvolume penum
Playback channels: Front Left - Front Right
Limits: Playback 0 - 255
Mono:
Front Left: Playback 188 [74%] [-13.40dB]
Front Right: Playback 188 [74%] [-13.40dB]
PulseAudio:
* index: 11
name: <alsa_output.pci-0000_00_1b.0.analog-stereo>
driver: <module-alsa-card.c>
flags: HARDWARE HW_MUTE_CTRL HW_VOLUME_CTRL DECIBEL_VOLUME LATENCY FLAT_VOLUME DYNAMIC_LATENCY
state: IDLE
suspend cause:
priority: 9959
volume: 0: 10% 1: 10%
0: -60.00 dB 1: -60.00 dB
balance 0.00
base volume: 100%
0.00 dB
volume steps: 65537
muted: no
============================== 9% ==============
Simple mixer control 'Master',0
Capabilities: pvolume pswitch penum
Playback channels: Front Left - Front Right
Limits: Playback 0 - 31
Mono:
Front Left: Playback 0 [0%] [-46.50dB] [on]
Front Right: Playback 0 [0%] [-46.50dB] [on]
Simple mixer control 'PCM',0
Capabilities: pvolume penum
Playback channels: Front Left - Front Right
Limits: Playback 0 - 255
Mono:
Front Left: Playback 174 [68%] [-16.20dB]
Front Right: Playback 174 [68%] [-16.20dB]
PulseAudio:
* index: 11
name: <alsa_output.pci-0000_00_1b.0.analog-stereo>
driver: <module-alsa-card.c>
flags: HARDWARE HW_MUTE_CTRL HW_VOLUME_CTRL DECIBEL_VOLUME LATENCY FLAT_VOLUME DYNAMIC_LATENCY
state: IDLE
suspend cause:
priority: 9959
volume: 0: 9% 1: 9%
0: -62.74 dB 1: -62.74 dB
balance 0.00
base volume: 100%
0.00 dB
volume steps: 65537
muted: no
============================== 8% ==============
Simple mixer control 'Master',0
Capabilities: pvolume pswitch penum
Playback channels: Front Left - Front Right
Limits: Playback 0 - 31
Mono:
Front Left: Playback 0 [0%] [-46.50dB] [on]
Front Right: Playback 0 [0%] [-46.50dB] [on]
Simple mixer control 'PCM',0
Capabilities: pvolume penum
Playback channels: Front Left - Front Right
Limits: Playback 0 - 255
Mono:
Front Left: Playback 159 [62%] [-19.20dB]
Front Right: Playback 159 [62%] [-19.20dB]
PulseAudio:
* index: 11
name: <alsa_output.pci-0000_00_1b.0.analog-stereo>
driver: <module-alsa-card.c>
flags: HARDWARE HW_MUTE_CTRL HW_VOLUME_CTRL DECIBEL_VOLUME LATENCY FLAT_VOLUME DYNAMIC_LATENCY
state: IDLE
suspend cause:
priority: 9959
volume: 0: 8% 1: 8%
0: -65.81 dB 1: -65.81 dB
balance 0.00
base volume: 100%
0.00 dB
volume steps: 65537
muted: no
============================== 7% ==============
Simple mixer control 'Master',0
Capabilities: pvolume pswitch penum
Playback channels: Front Left - Front Right
Limits: Playback 0 - 31
Mono:
Front Left: Playback 0 [0%] [-46.50dB] [on]
Front Right: Playback 0 [0%] [-46.50dB] [on]
Simple mixer control 'PCM',0
Capabilities: pvolume penum
Playback channels: Front Left - Front Right
Limits: Playback 0 - 255
Mono:
Front Left: Playback 142 [56%] [-22.60dB]
Front Right: Playback 142 [56%] [-22.60dB]
PulseAudio:
* index: 11
name: <alsa_output.pci-0000_00_1b.0.analog-stereo>
driver: <module-alsa-card.c>
flags: HARDWARE HW_MUTE_CTRL HW_VOLUME_CTRL DECIBEL_VOLUME LATENCY FLAT_VOLUME DYNAMIC_LATENCY
state: IDLE
suspend cause:
priority: 9959
volume: 0: 7% 1: 7%
0: -69.29 dB 1: -69.29 dB
balance 0.00
base volume: 100%
0.00 dB
volume steps: 65537
muted: no
============================== 6% ==============
Simple mixer control 'Master',0
Capabilities: pvolume pswitch penum
Playback channels: Front Left - Front Right
Limits: Playback 0 - 31
Mono:
Front Left: Playback 0 [0%] [-46.50dB] [on]
Front Right: Playback 0 [0%] [-46.50dB] [on]
Simple mixer control 'PCM',0
Capabilities: pvolume penum
Playback channels: Front Left - Front Right
Limits: Playback 0 - 255
Mono:
Front Left: Playback 121 [47%] [-26.80dB]
Front Right: Playback 121 [47%] [-26.80dB]
PulseAudio:
* index: 11
name: <alsa_output.pci-0000_00_1b.0.analog-stereo>
driver: <module-alsa-card.c>
flags: HARDWARE HW_MUTE_CTRL HW_VOLUME_CTRL DECIBEL_VOLUME LATENCY FLAT_VOLUME DYNAMIC_LATENCY
state: IDLE
suspend cause:
priority: 9959
volume: 0: 6% 1: 6%
0: -73.31 dB 1: -73.31 dB
balance 0.00
base volume: 100%
0.00 dB
volume steps: 65537
muted: no
============================== 5% ==============
Simple mixer control 'Master',0
Capabilities: pvolume pswitch penum
Playback channels: Front Left - Front Right
Limits: Playback 0 - 31
Mono:
Front Left: Playback 0 [0%] [-46.50dB] [on]
Front Right: Playback 0 [0%] [-46.50dB] [on]
Simple mixer control 'PCM',0
Capabilities: pvolume penum
Playback channels: Front Left - Front Right
Limits: Playback 0 - 255
Mono:
Front Left: Playback 98 [38%] [-31.40dB]
Front Right: Playback 98 [38%] [-31.40dB]
PulseAudio:
* index: 11
name: <alsa_output.pci-0000_00_1b.0.analog-stereo>
driver: <module-alsa-card.c>
flags: HARDWARE HW_MUTE_CTRL HW_VOLUME_CTRL DECIBEL_VOLUME LATENCY FLAT_VOLUME DYNAMIC_LATENCY
state: IDLE
suspend cause:
priority: 9959
volume: 0: 5% 1: 5%
0: -78.06 dB 1: -78.06 dB
balance 0.00
base volume: 100%
0.00 dB
volume steps: 65537
muted: no
============================== 4% ==============
Simple mixer control 'Master',0
Capabilities: pvolume pswitch penum
Playback channels: Front Left - Front Right
Limits: Playback 0 - 31
Mono:
Front Left: Playback 0 [0%] [-46.50dB] [on]
Front Right: Playback 0 [0%] [-46.50dB] [on]
Simple mixer control 'PCM',0
Capabilities: pvolume penum
Playback channels: Front Left - Front Right
Limits: Playback 0 - 255
Mono:
Front Left: Playback 69 [27%] [-37.20dB]
Front Right: Playback 69 [27%] [-37.20dB]
PulseAudio:
* index: 11
name: <alsa_output.pci-0000_00_1b.0.analog-stereo>
driver: <module-alsa-card.c>
flags: HARDWARE HW_MUTE_CTRL HW_VOLUME_CTRL DECIBEL_VOLUME LATENCY FLAT_VOLUME DYNAMIC_LATENCY
state: IDLE
suspend cause:
priority: 9959
volume: 0: 4% 1: 4%
0: -83.87 dB 1: -83.87 dB
balance 0.00
base volume: 100%
0.00 dB
volume steps: 65537
muted: no
============================== 3% ==============
Simple mixer control 'Master',0
Capabilities: pvolume pswitch penum
Playback channels: Front Left - Front Right
Limits: Playback 0 - 31
Mono:
Front Left: Playback 0 [0%] [-46.50dB] [on]
Front Right: Playback 0 [0%] [-46.50dB] [on]
Simple mixer control 'PCM',0
Capabilities: pvolume penum
Playback channels: Front Left - Front Right
Limits: Playback 0 - 255
Mono:
Front Left: Playback 31 [12%] [-44.80dB]
Front Right: Playback 31 [12%] [-44.80dB]
PulseAudio:
* index: 11
name: <alsa_output.pci-0000_00_1b.0.analog-stereo>
driver: <module-alsa-card.c>
flags: HARDWARE HW_MUTE_CTRL HW_VOLUME_CTRL DECIBEL_VOLUME LATENCY FLAT_VOLUME DYNAMIC_LATENCY
state: IDLE
suspend cause:
priority: 9959
volume: 0: 3% 1: 3%
0: -91.36 dB 1: -91.36 dB
balance 0.00
base volume: 100%
0.00 dB
volume steps: 65537
muted: no
============================== 2% ==============
Simple mixer control 'Master',0
Capabilities: pvolume pswitch penum
Playback channels: Front Left - Front Right
Limits: Playback 0 - 31
Mono:
Front Left: Playback 0 [0%] [-46.50dB] [on]
Front Right: Playback 0 [0%] [-46.50dB] [on]
Simple mixer control 'PCM',0
Capabilities: pvolume penum
Playback channels: Front Left - Front Right
Limits: Playback 0 - 255
Mono:
Front Left: Playback 0 [0%] [-51.00dB]
Front Right: Playback 0 [0%] [-51.00dB]
PulseAudio:
* index: 11
name: <alsa_output.pci-0000_00_1b.0.analog-stereo>
driver: <module-alsa-card.c>
flags: HARDWARE HW_MUTE_CTRL HW_VOLUME_CTRL DECIBEL_VOLUME LATENCY FLAT_VOLUME DYNAMIC_LATENCY
state: IDLE
suspend cause:
priority: 9959
volume: 0: 2% 1: 2%
0: -101.93 dB 1: -101.93 dB
balance 0.00
base volume: 100%
0.00 dB
volume steps: 65537
muted: no
============================== 1% ==============
Simple mixer control 'Master',0
Capabilities: pvolume pswitch penum
Playback channels: Front Left - Front Right
Limits: Playback 0 - 31
Mono:
Front Left: Playback 0 [0%] [-46.50dB] [on]
Front Right: Playback 0 [0%] [-46.50dB] [on]
Simple mixer control 'PCM',0
Capabilities: pvolume penum
Playback channels: Front Left - Front Right
Limits: Playback 0 - 255
Mono:
Front Left: Playback 0 [0%] [-51.00dB]
Front Right: Playback 0 [0%] [-51.00dB]
PulseAudio:
* index: 11
name: <alsa_output.pci-0000_00_1b.0.analog-stereo>
driver: <module-alsa-card.c>
flags: HARDWARE HW_MUTE_CTRL HW_VOLUME_CTRL DECIBEL_VOLUME LATENCY FLAT_VOLUME DYNAMIC_LATENCY
state: IDLE
suspend cause:
priority: 9959
volume: 0: 1% 1: 1%
0: -119.97 dB 1: -119.97 dB
balance 0.00
base volume: 100%
0.00 dB
volume steps: 65537
muted: no
============================== 0% ==============
Simple mixer control 'Master',0
Capabilities: pvolume pswitch penum
Playback channels: Front Left - Front Right
Limits: Playback 0 - 31
Mono:
Front Left: Playback 0 [0%] [-46.50dB] [on]
Front Right: Playback 0 [0%] [-46.50dB] [on]
Simple mixer control 'PCM',0
Capabilities: pvolume penum
Playback channels: Front Left - Front Right
Limits: Playback 0 - 255
Mono:
Front Left: Playback 0 [0%] [-51.00dB]
Front Right: Playback 0 [0%] [-51.00dB]
PulseAudio:
* index: 11
name: <alsa_output.pci-0000_00_1b.0.analog-stereo>
driver: <module-alsa-card.c>
flags: HARDWARE HW_MUTE_CTRL HW_VOLUME_CTRL DECIBEL_VOLUME LATENCY FLAT_VOLUME DYNAMIC_LATENCY
state: IDLE
suspend cause:
priority: 9959
volume: 0: 0% 1: 0%
0: -inf dB 1: -inf dB
balance 0.00
base volume: 100%
0.00 dB
volume steps: 65537
muted: no
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