Difference between revisions of "Raspberry Pi ALSA"
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By default, the RPi audio output is set to automatically select the digital HDMI interface if its being used, otherwise the analog audio output. You can force it to use a specific interface via the sound mixer controls. [http://linux.die.net/man/1/amixer amixer] allows command-line control of the mixer for the ALSA driver. | By default, the RPi audio output is set to automatically select the digital HDMI interface if its being used, otherwise the analog audio output. You can force it to use a specific interface via the sound mixer controls. [http://linux.die.net/man/1/amixer amixer] allows command-line control of the mixer for the ALSA driver. | ||
| − | You can force the RPi to use a specific interface using the command amixer cset numid=3 N where the N parameter means the following: 0=auto, 1=analog, 2=hdmi. Therefore, to force the Raspberry Pi to use the analog output: | + | You can force the RPi to use a specific interface using the command amixer cset numid=3 N where the N parameter means the following: 0=auto, 1=analog, 2=hdmi. Therefore, to force the Raspberry Pi to use the analog output (note root prompt!): |
| − | <pre>amixer cset numid=3 1</pre> | + | <pre># amixer cset numid=3 1</pre> |
== Sound Check == | == Sound Check == | ||
