Getting Pulseaudio and alsa to share one sound card

[Richard Reina]

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 (<markg85 at 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 <gatorreina at 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 (<markg85 at 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 <gatorreina at 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]
>>>>
>>>
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