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The title pretty much says it all. I am using Ubuntu MATE, which uses ALSA instead of PulseAudio. OMXplayer bypasses ALSA. Because of this OMXplayer always starts playback at 100% volume, which is far too loud (dive for cover and grab some earmuffs!). I would like to reset the default volume so this does not happen.

Is there a way to do this?

Thank you.

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  • Are you using a pixel desktop? If so why can't you use volume control instead? Or do you mean that OMXplayer resets the volume to 100%? – Darkest N2O Nov 30 '17 at 21:43
  • @Darkest N2O, I forgot got to mention that I am using Ubuntu MATE. The Ubuntu MATE desktop uses ALSA, which has no control over OMXplayer. – user72982 Dec 1 '17 at 6:31
  • sorry cant help you. I have never used Ubuntu before... – Darkest N2O Dec 1 '17 at 18:49
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If you are starting omxplayer from the command line you can use the --vol option to set the volume at start.

$man omxplayer
...
-b 
   --vol n                 set initial volume in millibels (default 0)

You can do a trial and error experiment with a few values and see which one is best suited to your likes. Then you can create an alias for omxplayer -b --vol nnnn

It's important to note that the units are millibels not decibels. So, a value of -50 is not going to do much. Since the scale is logarithmic, 3.0dB is twice or one half power. So, the -3000 set point is one half power of the default 0 setting.

How to set an alias

#alias omxplayer="omxplayer -b --vol -1000"

It's important to remember that the alias needs to be created in the proper user's environment. So, if you run omxplayer as root, you will need to create the alias in a root shell.

$sudo -s
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0

I am also using ubuntu mate loaded on Raspberry pi 2 model B.

you can increase-decrease volume in omxplayer by following command:

omxplayer -o local --vol -1000 name.mp3 (0 to -1000.... is for low volume set)

omxplayer -o local --vol 1000 name.mp3 (0 to 1000.... is for high volume set)

you can check omxplayer's option by enter- omxplayer on terminal.

it will help you.

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