The GUI implementation under OS X isn't as streamlined as other platforms. So quickly refreshing GUI elements (like VU meters, etc) could be one source. For example, running another GUI-heavy app with PD can also cause this trouble.
I tend to use JackOSX, which gives me far less trouble than direct Portaudio. Portaudio could be one of those things (like ALSA on Linux) which needs some cleaning up.
d.
altern wrote:
hi
sorry if this has been asked before. I am in the middle of a workshop and one student is having problems with the sound in PD, this is both with the latest extended version and the latest miller build
he is running a ppc g4 167gz on OSX 10.9
he is just playing a sine wave but the sound is dirty and periodically distorts (ones per sec or so). We tried not to load any externals, also increased the sound buffer, restart the machine, restart pd few times ... but keeps making the funny noise