On Thu, 18.06.09 23:27, Jussi Laako (ju...@sonarnerd.net) wrote: > > Lennart Poettering wrote: > > If an application can send PA data in larger blocks then we are happy > > about it and take it. Of course, if the application needs low > > latencies then it shouldn't pass huge blocks to us, but instead many > > No, generally data needs to be fed _to_ application immediately when it > becomes available after A/D conversion (PCI DMA completion interrupt). > Application(s) process the data and it is ought to go to D/A conversion > on next hardware interrupt (PCI DMA reprogram interrupt), along with > time-synchronous data from other applications. This creates total > latency of inputhw+blocksize+outputhw. Generally input and output > latencies should be around few tens of samples (due to delta-sigma > converter resampling filters etc). And generally blocksize is also kept > around 64 or so.
Yeah? And this matters how to PA? Lennart -- Lennart Poettering Red Hat, Inc. lennart [at] poettering [dot] net http://0pointer.net/lennart/ GnuPG 0x1A015CC4 _______________________________________________ Linux-audio-dev mailing list Linux-audio-dev@lists.linuxaudio.org http://lists.linuxaudio.org/mailman/listinfo/linux-audio-dev
