We have received many questions about audio on pcDuino:

1. How to adjust the volume of pcDuino?

2. I have two sound cards on pcDuino. How can I choose which one to use?

3. How to play back audio files on pcDuino?

We will first install audio control software:

$sudo apt-get install gnome-alsamixer

Open a terminal, or use ssh to connect to the board. Enter the following command:

$alsamixer

Now it will pop up an interface as the following:

If you don’t know how to use the software, press F1 key to bring up the help screen:

The play back the audio files, please use mplayer:

$ mplayer your.mp3

If you don’t have mplayer installed, you can install using the following command:

$sudo apt-get install gnome-mplayer

You will then find a App with UI named Mplayer in sound&video category.