Dear Hui,
One idea, not sure it will address your exact issue, but I saw the platform running ALSA might not be powerful enough to cope will all the data.
I had the issue with multiple record sessions with different audio cards on Rapberry Pi 3 where one record and simultaneous play worked fine, but when adding new channels shows issues. I since then moved to a new HW (a PC in my case) and been able to cope with 3 simultaneous channels with one play and one record on each.
Best,
Alexandre
Le ven. 2 avr. 2021 à 14:46, Zhou, Hui via Alsa-user <alsa-user@xxxxxxxxxxxxxxxxxxxxx> a écrit :
_______________________________________________Dear community,
I am currently working on streaming one input audio to multiple output speakers.
Here is the procedures:
mkfifo audio.wav
arecord -D “input device” audio.wav
aplay -D ”speaker1” audio.wav
aplay -D “speaker2” audio.wav
The problem is once I run the “aplay -D “speaker2” audio.wav”, the audio in two speakers becomes intermittent.
But there is no problem when I only play on speaker1.
Could anyone help me on this?
Thanks!
Best regards,
Hui
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