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→Usage alsa-utils
====Usage [https://alsa-project.org/wiki/Documentation alsa-utils] ====
In order to unmute the speaker the <code>amixer</code> utility can be used.
<pre class="workstation-terminal">
root@desk-mx8mm:~# amixer sset "Speaker" on
Playback channels: Mono
Mono: Playback [on]
</pre>
<pre class="workstation-terminal">
root@desk-mx8mm:~# amixer sset "Speaker Analog" 100
Simple mixer control 'Speaker Analog',0
Limits: Playback 0 - 127
Mono: Playback 100 [79%] [-13.50dB]
</pre>
<pre class="workstation-terminal">
root@desk-mx8mm:~# amixer sset "Speaker Driver" on 2
Simple mixer control 'Speaker Driver',0
Limits: Playback 0 - 3
Mono: Playback 2 [67%] [18.00dB] [on]
</pre>
<pre class="workstation-terminal">
root@desk-mx8mm:~# amixer sset "DAC" 100
Simple mixer control 'DAC',0
Front Left: Playback 100 [57%] [-13.50dB]
Front Right: Playback 100 [57%] [-13.50dB]
</pre>
<pre class="workstation-terminal">
root@desk-mx8mm:~# amixer sset "Output Left From Left DAC" on
Simple mixer control 'Output Left From Left DAC',0
Playback channels: Mono
Mono: Playback [on]
</pre>
To perform a sound, execute the command:
<pre class="workstation-terminal">
root@desk-mx8mm:~# aplay sample_22_frames.mp3
Playing raw data 'sample_22_frames.mp3' : Unsigned 8 bit, Rate 8000 Hz, Mono
</pre>In order to unmute the speaker the <code>amixer</code> utility can be used.
=== Additional information ===