Setting Default Sound Device
I have added a USB sound card to my rpi Emteria system. It works fine, but it is now the default sound device for everything in Emteria.
How can I set the default sound device Emteria uses to something else ? Or even switch sound devices on the fly?
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Commandline? Unsure what Linux command would do that?
Yup from the command line would be fine so the equivalent of something like:
pacmd "set-default-sink "
Which is (I think) how you change this in ALSA in a desktop distro, but Android has a much lighter userspace ALSA.
For some context, I can play out of a USB sound card with aplay easily enough, for the application I have in mind. But as soon as I plug in the USB sound card it becomes the default sound device, how can I make the built-in Rpi audio out jack the default again?
How can I access the Command line locally?
Enable the local terminal in the developer settings or connect with ADB and type "adb shell".
Thanks, I got the terminal working, just had some difficulty finding the setting.
However the pacmd command does not seem to be recognized by the terminal.
I have tried every audio interface I can think of and nothing...
What interface does emteria use?
sudo infront of the command?
sudo is not recognized either, I believe "su" is used instead.
Even with that, all I get is: " sh: pacmd: not found"
UPDATE:
I now realize that Emteria uses TinyALSA for audio control.
"tinymix" is the installed audio mixer/config tool
After some editing of the audio_policy_configuration.xml file,
I was able to restructure the default audio input and output.
Would an audio hat be an option?