preferences, of course - I always wondered what makes it possible to get it really low
2015-02-18 13:34 GMT-02:00 Jonathan Wilkes <[email protected]>: > Are you saying you want to get the latency that you perceive down to > 4/10ms? Or do you just want to get the latency setting in the preferences > down to 4/10ms? > > Unfortunately those are two very different things. > > -Jonathan > > > On Wednesday, February 18, 2015 10:11 AM, Alexandre Torres Porres < > [email protected]> wrote: > > > > I've seen really good setups get down to below 10ms (as low as 4) > > what kind of setup? :) it'd be cool if we described some rigs here > > cheers > > 2015-02-18 0:26 GMT-02:00 David Medine <[email protected]>: > > Basically these things have to do with performance. > > 'Use callbacks' has to do with how Pd communicates with your soundcard. > There are two options, using callbacks, and blocking. In the callbacks > scenario, your computer processes samples then asks the sound card to 'call > you back' when it's ready to receive those samples (i.e. when it is out of > audio to play and needs some more). In the meantime, you can process more > samples, or check out what's going on on CNN.com or whatever. > > In the blocking method the computer hands the samples to the soundcard by > calling a function and if the sound card is not ready, it 'blocks' meaning > it stops your function in its tracks until it is ready to receive the data. > Your thread (Pd) will halt until the function that sends the audio has > finished. > > Anybody out there, please correct me if I am spreading misinformation > here, but this is my understanding of this distinction. > > Delay(msec) is a delay between logical time (when your computer computes > the audio) and real time (when the sound comes out the speaker). You want > to have some head room here. I've seen really good setups get down to below > 10ms (as low as 4) without any glitches, but usually you want much more > time ~50ms or so. > > > On 2/17/2015 5:42 PM, Jonghyun Kim wrote: > > Fyi, I use jack on Linux for PD. > On Feb 18, 2015 8:16 AM, "Jonghyun Kim" <[email protected]> wrote: > > Hi list, > > I would like to know about some features in audio settings. > > I don't understand what mean these options. > > *Delay(msec)* and *Use callbacks* > > I googled these options, but still I don't understand. Is there some > document about it? > > Thanks in advance, > akntk > > > > _______________________________________________pd-l...@lists.iem.at mailing > list > UNSUBSCRIBE and account-management -> > http://lists.puredata.info/listinfo/pd-list > > > > _______________________________________________ > [email protected] mailing list > UNSUBSCRIBE and account-management -> > http://lists.puredata.info/listinfo/pd-list > > > > _______________________________________________ > [email protected] mailing list > UNSUBSCRIBE and account-management -> > http://lists.puredata.info/listinfo/pd-list > > >
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