Problems with audio with emulation station

[hosselausso]

I have RetroPie on a RPi4. I have problems with audio not working when playing games. I have the Pi connected via HDMI to my TV. It used to work until I did an update recently.

On the console, I do:

$ omxplayer test.wav

and it works via HDMI (I hear the sound on the TV), but

$ speaker-test

or variations trying to load other sounds or targeting all channels like

$ speaker-test --test=wav -w /home/pi/mono.wav
$ speaker-test -c8 --test=wav -w /home/pi/mono.wav

doesn't work, not sure why.

Let me give you some extra info about my system:

$ uname -a
Linux retropie 5.10.103-v7l+ #1529 SMP Tue Mar 8 12:24:00 GMT 2022 armv7l GNU/Linux

$ cat /proc/asound/modules
0 snd_bcm2835
1 snd_bcm2835

$ aplay -l
**** List of PLAYBACK Hardware Devices ****
card 0: b1 [bcm2835 HDMI 1], device 0: bcm2835 HDMI 1 [bcm2835 HDMI 1]
Subdevices: 4/4
Subdevice #0: subdevice #0
Subdevice #1: subdevice #1
Subdevice #2: subdevice #2
Subdevice #3: subdevice #3
card 1: Headphones [bcm2835 Headphones], device 0: bcm2835 Headphones [bcm2835 Headphones]
Subdevices: 4/4
Subdevice #0: subdevice #0
Subdevice #1: subdevice #1
Subdevice #2: subdevice #2
Subdevice #3: subdevice #3

Also, using retropie_setup.sh configuration/tools/audiosettings I have selected HDMI 1 as output.

In /boot/config.txt I have uncommented hdmi_drive=2 as well.

And these are the sound settings on the emulation station:

[hosselausso]

I've done a quick test with headphones through the mini jack connector.

With
speaker-test
or
speaker-test -D plughw:1,0

I hear sound in the headphones. But with
speaker-test -D plughw:0,0
I don't hear any sound anywhere...

[hosselausso]

This post is deleted!

[hosselausso]

More output debug info:

$ amixer
Simple mixer control 'HDMI',0
  Capabilities: pvolume pvolume-joined pswitch pswitch-joined
  Playback channels: Mono
  Limits: Playback -10239 - 400
  Mono: Playback 293 [99%] [2.93dB] [off]

$ amixer cget numid=1
numid=1,iface=MIXER,name='HDMI Playback Volume'
  ; type=INTEGER,access=rw---R--,values=1,min=-10239,max=400,step=0
  : values=293
  | dBscale-min=-102.39dB,step=0.01dB,mute=1

$ amixer cget numid=2
numid=2,iface=MIXER,name='HDMI Playback Switch'
  ; type=BOOLEAN,access=rw------,values=1
  : values=off

[barbudreadmon]

@hosselausso said in Problems with audio with emulation station:

Mono: Playback 293 [99%] [2.93dB] [off]

[off] might mean the audio channel is muted. I think you can fix this by running amixer sset HDMI unmute. I'm not too knowledgeable about amixer tbh, i prefer alsamixer.

[hosselausso]

OMG, that was the problem. I had:

amixer
Simple mixer control 'HDMI',0
  Capabilities: pvolume pvolume-joined pswitch pswitch-joined
  Playback channels: Mono
  Limits: Playback -10239 - 400
  Mono: Playback 120 [97%] [1.20dB] [off]

set to off

So, after doing amixer sset HDMI unmute :

Simple mixer control 'HDMI',0
  Capabilities: pvolume pvolume-joined pswitch pswitch-joined
  Playback channels: Mono
  Limits: Playback -10239 - 400
  Mono: Playback 120 [97%] [1.20dB] [on]

Thank you very much!