[PD] tried but cannot sync A/D/A if I try to set delay>50

Pedro Lopes pedro.lopes at ist.utl.pt
Sat Oct 2 19:37:32 CEST 2010

Do you really need plain alsa by any reason?

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.

At least, its the way I work =P

Best regards,
Pedro Lopes

On Sat, Oct 2, 2010 at 6:32 PM, Matteo Sisti Sette <
matteosistisette at 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 at ist.utl.pt
website: http://web.ist.utl.pt/Pedro.Lopes
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