How To Specify ALSA Device with UxPlay
To specify the ALSA device with UxPlay:
uxplay -as 'alsasink device=hw:1'
UxPlay (version 1.61.1) does not appear to provide any diagnostics when the audio output from it is not working, for example in the following scenarios:
- The user running UxPlay does not have permissions to access the audio devices.
- A non-existent audio device is specified (for example,
hw:2when there is only one card in the system).
There is similarly no diagnostics I found which would indicate which
card is being used for audio output. For example, if /etc/asound.conf
specifies that the default card is 1, and UxPlay produces no sound,
I couldn't determine whether this was because UxPlay/gstreamer disregarded this
configuration and tried to play to card 0 which is HDMI output not attached
to anything.