amixer help

amixer help

[Glenn At Home]

Hi,
I'm reading the amixer manpage and I'm unclear on how to set the volume output to 100%.
Is there a simple command to make sure that all is unmuted and at 100%?
Thanks


Sent From My Tabletop
N0YJV   shade tree computer guy

Re: amixer help

[Chime Hart]

Well Glen, hopefully this will at least handle an unmute.
And this begins with where this script is run from on  my Debian machine.
type /usr/local/bin/volume.py
import subprocess
import alsaaudio
from subprocess import call


cards =  len(alsaaudio.cards())
for card in range(cards):
   mixer = alsaaudio.mixers(cardindex=card,device='default')
   for mix in mixer:
     result = alsaaudio.Mixer(control=mix, id=0, cardindex=card, 
device='default')
     if len(result.switchcap()) > 0:
       try:
         result.setmute(0)
       except alsaaudio.ALSAAudioError as error:
         pass
Back again live, I am not a programmer-and-I didn't write this, but I hope it 
will help you
Chime

Re: amixer help

[Willem van der Walt]

Hi,
I do not think there is a global command for all controls at once, but:
amixer set Master 100%
Should at least set your master volume.
FWIW, Willem


On Thu, 4 Apr 2019, Glenn At Home wrote:

> [The e-mail server of the sender could not be verified (SPF Record)]
>
> Hi,
> I'm reading the amixer manpage and I'm unclear on how to set the volume output to 100%.
> Is there a simple command to make sure that all is unmuted and at 100%?
> Thanks
>
>
> Sent From My Tabletop
> N0YJV   shade tree computer guy
> _______________________________________________
> Speakup mailing list
> Speakup@linux-speakup.org
> http://linux-speakup.org/cgi-bin/mailman/listinfo/speakup
>

Re: amixer help

[Gregory Nowak]

On Fri, Apr 05, 2019 at 07:32:44AM +0200, Willem van der Walt wrote:
> Hi,
> I do not think there is a global command for all controls at once, but:
> amixer set Master 100%
> Should at least set your master volume.

Make that:
amixer set Master 100% unmute

Setting the volume to full doesn't help if it's still muted. You'll
likely also want:
amixer set PCM 60% unmute

Greg


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Re: amixer help

[Jude DaShiell]

amixer set Master 100%
and the m in master has to be uppercase.
After that alsactl store should preserve your settings if all else is
working correctly.

On Thu, 4 Apr 2019, Glenn At Home wrote:

> Date: Thu, 4 Apr 2019 17:27:11
> From: Glenn At Home <GlennErvin@cableone.net>
> To: Speakup is a screen review system for Linux. <speakup@linux-speakup.org>
> Subject: amixer help
>
> Hi,
> I'm reading the amixer manpage and I'm unclear on how to set the volume output to 100%.
> Is there a simple command to make sure that all is unmuted and at 100%?
> Thanks
>
>
> Sent From My Tabletop
> N0YJV   shade tree computer guy
> _______________________________________________
> Speakup mailing list
> Speakup@linux-speakup.org
> http://linux-speakup.org/cgi-bin/mailman/listinfo/speakup
>

-- 

Re: amixer help

[Janina Sajka]

Hi, Glenn:

I'm not aware of a way to manage "all" through a single command. Maybe
someone has written a tool like that. Part of the problem is that each
sound card is different, providing more or fewer interface options. And,
if you have more than one card, like I do, things get even more complex.

Here's how to enumerate the cards you have:
aplay -l

Now, for each individual card, where x stands for the card number,  you can query available controls like so:

amixer -Cx controls

You'l find some cards have lots of controls, and others very few. If
you're looking only for volume, grep is your friend like so by way of
example:

amixer -c2 controls |grep -i volume

Of course, if you have but one card, you don't need the -c switch.

Now, to get the current setting for any control, again where x
identifies the card, and y identifies the numeric id you discovered with
the grep above, do like so:

amixer -cx cget numid=y


Lastly, to set the volume:

amixer -cx cset numid=y [value]

hth

Janina

Glenn At Home writes:
> Hi,
> I'm reading the amixer manpage and I'm unclear on how to set the volume output to 100%.
> Is there a simple command to make sure that all is unmuted and at 100%?
> Thanks
> 
> 
> Sent From My Tabletop
> N0YJV   shade tree computer guy
> _______________________________________________
> Speakup mailing list
> Speakup@linux-speakup.org
> http://linux-speakup.org/cgi-bin/mailman/listinfo/speakup

-- 

Janina Sajka

Linux Foundation Fellow
Executive Chair, Accessibility Workgroup:	http://a11y.org

The World Wide Web Consortium (W3C), Web Accessibility Initiative (WAI)
Chair, Accessible Platform Architectures	http://www.w3.org/wai/apa