you can't rely on the timing of pd's dsp tick! it's linked to the audio hardware and depending on how many samples of audio data the audio hardware is processing in one block, the pd's dsp tick is called several times to fulfill the requirements of the audio interface.
e.g.:
audio hardware: | | | | | pd: || || || || ||
if you need to synchronize with anything that requires more exact timing, the way to go would be to use another thread ...
hth ... tim
-- TimBlechmann@gmx.de ICQ: 96771783 http://www.mokabar.tk
Linux is like a wigwam: no windows, no gates, apache inside, stable.