Sometimes Glitchy Output

[styro2000]

Hello,
First, thanks for this great project! Nice small soundmodule, i am running mt32-pi on a raspy 4-64 with a HiFi-Berry PCM5122 DAC, connected via GPIO-MIDI
When i compile with
HDMI_CONSOLE?=1
enabled i get sometimes a glitchy output signal

the glitches are in the frequency of the chunk_size (64), but increasing the chunk_size dont help, so i dont think thats a performance-issue.
This happens in Soundfont and mt32 modes...
Strangely sometime reboot helps, sometime overloading with much midi...

Could that be some core-synchronization-problem?

Many thanks for any help!

styro

[dwhinham]

https://github.com/dwhinham/mt32-pi/wiki/Troubleshooting

Release builds of mt32-pi do not output anything via HDMI for performance/latency reasons.

Running the display output steals too much interrupt time from the audio drivers, hence HDMI console is intended for troubleshooting/development only.