I have a Raspberry Pi 3b with a Hifiberry Amp4/DAC hat runs Moode Audio OS.
If I pick Pulse as they audio device in LedFx and play a sound file with aplay sound_file.wav my leds react to the music.
The problem is that after aplay has finished playing the
sound file if I then go try to use Moode audio player Moode audio won't
play music and gives me the following error:
MPD error Failed to open "ALSA Default" (alsa); Failed to open ALSA device "_audioout": Device or resource busy
This persists until I stop Ledfx. Is there a way I can switch back
and forth between aplay and Moode Audio player without having to stop
and start Ledfx? I am not looking to get LedFx working with Moode I only
want reactive lights when I play a song with aplay.
$ aplay -l
**** List of PLAYBACK Hardware Devices ****
card 0: sndrpihifiberry [snd_rpi_hifiberry_dacplus], device 0: HiFiBerry
DAC+ HiFi pcm512x-hifi-0 [HiFiBerry DAC+ HiFi pcm512x-hifi-0]
Subdevices: 0/1
Subdevice #0: subdevice #0
$ amixer
Simple mixer control 'Master',0
Capabilities: pvolume pswitch pswitch-joined
Playback channels: Front Left - Front Right
Limits: Playback 0 - 65536
Mono:
Front Left: Playback 65536 [100%] [on]
Front Right: Playback 65536 [100%] [on]
Simple mixer control 'Capture',0
Capabilities: cvolume cswitch cswitch-joined
Capture channels: Front Left - Front Right
Limits: Capture 0 - 65536
Front Left: Capture 65536 [100%] [on]
Front Right: Capture 65536 [100%] [on]
