Hello,
maybe you don't have the alsa config for pulseaudio. Normally aplay -L
shows that the default device points to pulse:
null
Discard all samples (playback) or generate zero samples (capture)
default
Playback/recording through the PulseAudio sound server
...
pulse
PulseAudio Sound Server
...
I guess the Moode audio player tries to access the ALSA device directly
and fails because the device is already in use by pulseaudio. There might
also be a configuration option in the player to make it use pulse.
Regards
Georg
On 07.05.24 18:34, Richard Reina wrote:
Yes it's a requirement. Setting the audio device to pulse in Ledfx is
the only way it will work.
El mar, 7 may 2024 a las 11:21, Mark Gaiser (<mark...@gmail.com>)
escribió:
Have you tried changing your device in ledfx to pulse?
https://ledfx.readthedocs.io/en/latest/directing_audio.html
Again no idea if this works, I don't know nor use ledfx :) Just
trying to help out.
On Tue, May 7, 2024 at 6:14 PM Richard Reina
<gatorre...@gmail.com> wrote:
Hi Mark,
Thank you for the reply. paplay also works but there's no
change. It's not the playing of the song that locks up the
device and causes Moode audio not to be able to use it, it's
the starting of ledfx. Once I do systemctl start ledfx the
moode audio player can no longer use the output device
regardless if I play a sound file with aplay, paplay or don't
play a sound file at all. Moode audio can't use the device
until I do systemctl stop ledfx.
El mar, 7 may 2024 a las 10:48, Mark Gaiser
(<mark...@gmail.com>) escribió:
Can you use paplay instead?
That is the pulseaudio aplay drop-in replacement.
I'm guessing you won't have "device or resource busy"
errors when using paplay.
I did not test this! But do let us know if it works for you :)
On Tue, May 7, 2024 at 3:24 PM Richard Reina
<gatorre...@gmail.com> wrote:
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]
