[alsa-devel] Default volume for all soundcards (-20dB by default?)
Hi,
It seems that the default volume for any new soundcard is set by default to -20dB. Do you know where is it hardcoded ? In which source file (I used package "alsa-utils" in Debian) or which configuration file?
Thanks, Jo
PS: here's the context :
I woud like to set up the default sound volume once for all, for all ALSA devices that will be connected ever. Of course, I could do "amixer ..." or even "alsamixer" to modify the volume of _currently available_ soundcards. But I really want to modify the default volume even for future soundcards that will be added later. I've seen /var/lib/alsa/asound.state but the content is specific to _currently connected_ soundcards. What I want is a solution that will apply to any soundcard that will be connected in the future.
Why do I want this? I'm providing a ready-to-use Debian image for my project http://www.samplerbox.org. User #1 might use the computer's built-in-soundcard, User #2 might have a USB DAC, User #3 might have another soundcard... I would like to provide a default -3dB volume that will work for any ALSA soundcard people could have...
On 2015-06-17 14:53, Jo wrote:
Hi,
It seems that the default volume for any new soundcard is set by default to -20dB. Do you know where is it hardcoded ? In which source file (I used package "alsa-utils" in Debian) or which configuration file?
It's in /usr/share/alsa/init/default
Thanks, Jo
PS: here's the context :
I woud like to set up the default sound volume once for all, for all ALSA devices that will be connected ever. Of course, I could do "amixer ..." or even "alsamixer" to modify the volume of _currently available_ soundcards. But I really want to modify the default volume even for future soundcards that will be added later. I've seen /var/lib/alsa/asound.state but the content is specific to _currently connected_ soundcards. What I want is a solution that will apply to any soundcard that will be connected in the future.
Why do I want this? I'm providing a ready-to-use Debian image for my project http://www.samplerbox.org. User #1 might use the computer's built-in-soundcard, User #2 might have a USB DAC, User #3 might have another soundcard... I would like to provide a default -3dB volume that will work for any ALSA soundcard people could have... _______________________________________________ Alsa-devel mailing list Alsa-devel@alsa-project.org http://mailman.alsa-project.org/mailman/listinfo/alsa-devel
Thanks David for your answer !
I tried this in /usr/share/alsa/init/default but it doesn't change anything (-20dB again on next reboot) :
# Default ALSA volume levels and setting when initialization database fails. # [...] # # ************************************************************************** # playback # **************************************************************************
ENV{ppercent}:="75%" ENV{cpercent}:="75%" ENV{pvolume}:="-3dB"
This sentence
# Default ALSA volume levels and setting when initialization database fails.
seems to show there is another database elsewhere, where should I try to set -3 dB ?
Jo
On Wed, Jun 17, 2015 at 4:21 PM, David Henningsson < david.henningsson@canonical.com> wrote:
On 2015-06-17 14:53, Jo wrote:
Hi,
It seems that the default volume for any new soundcard is set by default to -20dB. Do you know where is it hardcoded ? In which source file (I used package "alsa-utils" in Debian) or which configuration file?
It's in /usr/share/alsa/init/default
Thanks, Jo
PS: here's the context :
I woud like to set up the default sound volume once for all, for all ALSA devices that will be connected ever. Of course, I could do "amixer ..." or even "alsamixer" to modify the volume of _currently available_ soundcards. But I really want to modify the default volume even for future soundcards that will be added later. I've seen /var/lib/alsa/asound.state but the content is specific to _currently connected_ soundcards. What I want is a solution that will apply to any soundcard that will be connected in the future.
Why do I want this? I'm providing a ready-to-use Debian image for my project http://www.samplerbox.org. User #1 might use the computer's built-in-soundcard, User #2 might have a USB DAC, User #3 might have another soundcard... I would like to provide a default -3dB volume that will work for any ALSA soundcard people could have... _______________________________________________ Alsa-devel mailing list Alsa-devel@alsa-project.org http://mailman.alsa-project.org/mailman/listinfo/alsa-devel
-- David Henningsson, Canonical Ltd. https://launchpad.net/~diwic _______________________________________________ Alsa-devel mailing list Alsa-devel@alsa-project.org http://mailman.alsa-project.org/mailman/listinfo/alsa-devel
On 2015-06-17 17:56, Jo wrote:
Thanks David for your answer !
I tried this in /usr/share/alsa/init/default but it doesn't change anything (-20dB again on next reboot) :
# Default ALSA volume levels and setting when initialization database fails. # [...] # # ************************************************************************** # playback # **************************************************************************
ENV{ppercent}:="75%" ENV{cpercent}:="75%" ENV{pvolume}:="-3dB"
This sentence
# Default ALSA volume levels and setting when initialization database fails.
seems to show there is another database elsewhere, where should I try to set -3 dB ?
The database referred to is /var/lib/alsa/asound.state - this only applies to sound cards never seen before. And potentially other files in /usr/share/alsa/init that could override the default, but I suspect that is not the case here.
participants (2)
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David Henningsson -
Jo