Puredata outputs Very bad sound when using ALSA backend

[Ricardo Lameiro]

Binary package hint: puredata

Runnig Puredata with the alsa backend outputs very bad sound. Also it only outputs sound if the sound input is disconnected.
This is a link for the resulting sound. This is suposed to be continuous sound changing frequency overtime, the results its a bunch of crackles.
http://dl.dropbox.com/u/1333955/soundtestarmpd.ogg

There is some more info about this bug at http://puredata.info/docs/developer/BuildingPdForBeagleboard

I supose this is somewhat related to the alsa driver of the SoC

For reference i am using a IGEPv2 Board rev/RC 3

ProblemType: Bug
DistroRelease: Ubuntu 10.10
Package: puredata 0.42.6-1build1
Uname: Linux 2.6.35.4-l1 armv7l
Architecture: armel
Date: Sun Sep 19 01:46:10 2010
ProcEnviron:
 LANG=pt_PT.UTF-8
 SHELL=/bin/bash
SourcePackage: puredata

[IOhannes m zmoelnig (umlaeute)]

11 years later: is this still an issue?

- is your soundcard supporting full-duplex at all?
- are other applications able to play back sound properly?
- have you tried adjusting the buffersize?
- have you tried using JACK instead of ALSA (or the other way round)?

[IOhannes m zmoelnig (umlaeute)]

assuming that this got fixed in the last duodecade.