[squeak-dev] Sound mixing makes nasty noises

tim Rowledge tim at rowledge.org
Sat Jan 2 05:38:33 UTC 2021

The Great Saga marches onward...

I've hacked the playLoop to also save the samples sent to SoundPlayer class>>#primSoundPlaySamples:from:startingAt: in a SamplesSound with a big buffer. Running sample sound snippets results in a saveable sample that I can then play in various ways on other machines.

Right now it appears to strongly suggest that the samples being created by Squeak are just fine; make horrible noises on the pulse-Pi, copy the generated .wav to an alsa-Pi and it sounds fine. Play the .wav on my iMac via iTunes and it sounds fine. try to play the .wav via VLC media player on the pulse-Pi and if anything it sounds worse. VLC player on the alsa Pi sounds very similar to the iTunes/iMac.

More testing to try but I'm leaning towards the pulse system on the Pi being borked.

tim Rowledge; tim at rowledge.org; http://www.rowledge.org/tim
To err is human; to really foul things up requires a computer.

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