Low volume on videos with OMX+PCM
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I am using a Picade and for some reason, videos only play audio when using OMX acceleration, however, the volume on these videos is incredibly low. If I turn the ES volume up to 100% it's still a fairly low volume, but the games are incredibly loud. I spent four hours searching around and couldn't find a complete answer on how to adjust the OMX volume for if it's even possible.
Pi Model or other hardware: Pi 4
Power Supply used: Canakit 3.5A
RetroPie Version Used: 4.7.19
Built From: Pre made SD Image on RetroPie website using the Pi imager -
What is your setting for OMX Player Audio Device ?
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@mitu said in Low volume on videos with OMX+PCM:
What is your setting for OMX Player Audio Device ?
ALSA. This was instructed for use of the Picade Hat.
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For ALSA, I think
omxplayer
's volume is not calculated correctly. Normally on the Pi this can be worked around by choosing explicitlylocal
orhdmi
, but in your case the audio is done via the GPIO (using I2S), so those options are not available.
My advice is to use the built-in (VLC based) video player and the volume control should be similar (ES and in-games). Note that VLC has also HW accelerated decoding for videos (similar toomxplayer
) so the difference in performance between the 2 options on a Pi4 is barely noticeable. -
@mitu Yeah not using OMX leaves me with no sound in the video snaps. It’s super annoying. I’ve also spent ages researching that issue and can’t find a solution. So it’s either low audio or no audio right now for the video snaps.
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@binarymessiah said in Low volume on videos with OMX+PCM:
Yeah not using OMX leaves me with no sound in the video snaps
That means the
vlc
built-in video player doesn't have the right audio settings. I remember now a while back a similar topic with the audio output from the Picade, the issue was that the I2S card doesn't have a volume control exposed to ALSA, so the volume slider has little effect.Does
alsamixer
show any volume control for your card ? I assume that the configuration for the Picade has disabled the on-board audio, otherwise in-game sound wouldn't have worked.
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