If not, switch to jack audio server, then in jack you can configure the desired "latency parameter" easily (use qjackctl as GUI frontend for jackd itself). Then configure a higher latency that will ultimately free more CPU cycles and glitch less.

Pedro Lopes

On Sat, Oct 2, 2010 at 6:32 PM, Matteo Sisti Sette <matteosistisette@gmail.com> wrote:

Hi,

If I go to media/audio setting and try to set a delay higher than 50ms, I get a lot of "tried but couldn't sync A/D/A" messages and then "audio I/O stuck... closing".

This is on Ubuntu 10.04 with Pd Extended 0.42.5, with ALSA.

In windows I used to increase the delay when I had cpu-heavy patches (or when some other cpu-heavy application had to run on the same computer) in order to have a bigger buffer and less dropouts and it used to work seamlessly. I got more latency, obviously, but it worked better (less dropouts), not worse.

Why do I get these errors, what do they mean and why should a higher delay value trigger them???

thanks
m.

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Pedro Lopes (ongoing MSc)
contact: pedro.lopes@ist.utl.pt
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