As a first and fast answer, let me say that I did not notice anything 
broken there in years of doing sound and music in Squeak.

Did you check if the way you populate the samples buffers is the same as 
in #fromWaveStream: which is used to load wav files and works correctly 
AFAIK?


There are some useful tools in muO. For example, fetch the (32 bit) 
image in the rogue352.zip here: 
http://www.zogotounga.net/comp/squeak/rogue.htm , then copy the attached 
sound file in the root folder and do

(SampledSound fromWaveFileNamed: 'sound.wav') edit
(SampledSound fromWaveFileNamed: 'sound.wav') play


Works fine here.

Stef
-------------- next part --------------
A non-text attachment was scrubbed...
Name: sound.wav
Type: audio/wav
Size: 335132 bytes
Desc: not available
URL: <http://lists.squeakfoundation.org/pipermail/squeak-dev/attachments/20200919/204a93c9/attachment-0001.bin>