Takashi Iwai wrote: >> With the current setup and cycle code for mmap'd IO (like Jack for >> example does it), is it possible to use these devices at all? > >on 48kHz my usb speaker worked fine with 1ms or 2ms period size (not >under high loads, though), since the frames per urb becomes integer in >this case. on 44.1kHz xrun could happen.
Yeah, a differing number of frames/cycle makes things hairy. But if one sets a period size of 45/90 frames/cycle and accepts 44/88/89 as well, things should work OK, shouldn't they? >> What kind of hw/sw params, especially period size, should one set? > >the frequency aligned to 1000Hz. You mean divided by 1000, rounded up to the nearest integer, right? >> Can one choose larger period sizes (45 frames/cycle is too tough for >> a userspace process, at least on this box)? > >of course, depending on the kernel :) >in theory, 1ms latency is enough possible. Thanks! tim ------------------------------------------------------- This sf.net email is sponsored by: OSDN - Tired of that same old cell phone? Get a new here for FREE! https://www.inphonic.com/r.asp?r=sourceforge1&refcode1=vs3390 _______________________________________________ Alsa-devel mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/alsa-devel
