I am trying to setup an AC3 output using the A52 plugin. I was finding several .asoundrc exampls but none seemed to work for me. It always failed some way without producing any proper output when using speaker-test with 6-channel output:
Do you have A52 libraries installed on the PC? Because apart from having ALSA which supports A52(ALSA needs to be configred with it), you also need to have A52 libraries installed, which depends on distro, most distros, would not have installed. I dont know if you have itnstalled or not, checking it first might not be bad idea,
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Hello @all,
I am trying to setup an AC3 output using the A52 plugin. I was finding several .asoundrc exampls but none seemed to work for me. It always failed some way without producing any proper output when using speaker-test with 6-channel output:
pcm.a52encode {
type rate
slave {
pcm {
type a52
bitrate 448
channels 6
card 0
}
rate 48000
}
}
but it seems this device cannot be used:
speaker-test -D a52encode -c 6
ALSA lib conf.c:4705:(snd_config_expand) Unknown parameters {AES0 0x6 AES1 0x82 AES2 0x0 AES3 0x2 CARD 0}
ALSA lib pcm.c:2239:(snd_pcm_open_noupdate) Unknown PCM iec958:{AES0 0x6 AES1 0x82 AES2 0x0 AES3 0x2 CARD 0}
aplay: main:722: audio open error: Invalid argument
I tested on Ubuntu 17.04, raspbian and lubuntu 16.04. Is the A52 plugin still supported?
Thanks and regards,
Tobias
I am by all means am not proficient enough to answer any questions here.
My guess is that you are seeking for - is this: https://www.alsa-project.org/main/index.php/A52_plugin
Do you have A52 libraries installed on the PC? Because apart from having ALSA which supports A52(ALSA needs to be configred with it), you also need to have A52 libraries installed, which depends on distro, most distros, would not have installed. I dont know if you have itnstalled or not, checking it first might not be bad idea,