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I can control volume using this command through terminal amixer -D pulse sset Master 0% . My question that how can I do the same thing using python script.

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You can use call from the subprocess module:

from subprocess import call call(["amixer", "-D", "pulse", "sset", "Master", "0%"])

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Of course, you can use the normal python code with it:

valid = False while not valid: volume = input('What volume? > ') try: volume = int(volume) if (volume <= 100) and (volume >= 0): call(["amixer", "-D", "pulse", "sset", "Master", str(volume)+"%"]) valid = True except ValueError: pass

This code will loop untill the user gives a valid input - between 0 and 100, and will then set the volume to that.

This will run in Python 3. Change the input to raw_input for Python 2.

To increase by 10% when the script is run you can do one of two things.

You can use the alsaaudio module.

First, install with

sudo apt-get install python-alsaaudio

and then import it:

import alsaaudio

we can get the volume:

>>> m = alsaaudio.Mixer() >>> vol = m.getvolume() >>> vol [50L]

we can also set the volume:

>>> m.setvolume(20) >>> vol = m.getvolume() >>> vol [20L]

This number is a long integer in a list. So to make it into a usable number, we can do int(vol[0]).

So to increase by 10% when it is run?

import alsaaudio m = alsaaudio.Mixer() vol = m.getvolume() vol = int(vol[0]) newVol = vol + 10 m.setvolume(newVol)

Or we can stick with the subprocess module and default Ubuntu commands:

from subprocess import call call(["amixer", "-D", "pulse", "sset", "Master", "10%+"])

will increase by 10%.

My pronouns are He / Him

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  • thanx, it worked . Can we do this by importing alsaaudio in python and execute this based on initial volume. Commented Oct 24, 2015 at 22:48
  • @tarun14110 i.e. get the current volume and add an amount? Sure Commented Oct 24, 2015 at 22:49
  • instead of asking from the user , can't I read the value of volume from my system itself ? Like whenever someone runs the script, the volume increases by 10%. Commented Oct 24, 2015 at 22:55
  • okk, got it thanks for helping , we can increase volume by 10% from the current volume by using this coomand "amixer -D pulse sset Master 10%+" Commented Oct 24, 2015 at 23:05
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    I have installed alsaaudio module , I have tried the thing you told about , but I am getting error "Unable to find mixer control 'Master',0 " How can I resolve that ? Commented Oct 24, 2015 at 23:08
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For me, Tim's code didn't quite work. I had to do this:

import alsaaudio m = alsaaudio.Mixer(alsaaudio.mixers[0]) # alsaaudio.mixers = ["PCM"] for me. m.setvolume(90) # Or whatever

It may be due to my weird / broken .asoundrc config file. But given that there is no actual reference documentation for .asoundrc - just some random examples - I don't think you can blame me.

Also please don't call out to command line programs to do it. That is ugly and error-prone.

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you can also use the os module:

import os os.system('amixer -D pulse sset Master '+YourVolumeVariable+'%')
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  • Not what the question asked. It was quite clear it was to be python. Commented Apr 15 at 15:21
  • @DavidDE That is Python. It's the os module in Python. Commented Apr 15 at 19:28

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