Please ignore, a solution arrived on the Arch Linux Arm forum. A tiny
change to /boot/config.txt meant that there is no need to adjust the
ALSA config. See:
https://archlinuxarm.org/forum/viewtopic.php?f=65&t=15231&p=66234#p66234
On 19/03/2021 14:14, Iain Mott wrote:
Hello,
I'm using Arch Linux (AArch64) for the first time on a Raspberry Pi 4.
I need to use HDMI sound and the first HDMI port on the pi is card 0.
If I try to use aplay to play a sound file it prints:
aplay: set_params:1343: Sample format non available
Available formats:
- IEC958_SUBFRAME_LE
I find that I can play audio through HDMI by specifying the sample
format. eg.
aplay -D iec958 mysound.wav
What I'm stuck with is trying to configure ALSA to make this
specification. I've tried the following in my ~/.asoundrc
pcm.!default {
type plug
slave {
pcm "hw:0,0"
format IEC958_SUBFRAME_LE
}
}
While this produces no Alsa syntax errors when I use aplay, it still
won't play the audio and prints:
Playing WAVE 'wav48k.wav' : Signed 16 bit Little Endian, Rate 48000
Hz, Stereo
aplay: set_params:1343: Sample format non available
Available formats:
- IEC958_SUBFRAME_LE
Can anyone please help?
Thanks,
Iain
--
________
Iain Mott
https://escuta.org
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