Hmm, it looks like this problem was fixed in CVS a few months ago: http://www.mail-archive.com/[EMAIL PROTECTED]/msg12181.html
According to Jaroslav, you should be able to read and write any size periods, but there was an ALSA bug preventing this from working. I will try this and post my results. Lee On Mon, 2004-06-07 at 17:43, Robert Jonsson wrote: > m�ndagen den 7 juni 2004 23.02 skrev Lee Revell: > > Hey, > > > > It seems to be a known issue that you cannot run JACK with the capture > > period size lower than 512 with the SBLive ALSA driver. See this > > thread: > > > > http://ccrma-mail.stanford.edu/pipermail/planetccrma/2003-December/003764.h > >tml > > > > and this: > > > > http://www.music.columbia.edu/pipermail/linux-audio-user/2003-April/004040. > >html > > > > The above threads seem to indicate that this is a hardware limitation. > > However it seems to me more like a driver issue. Using the kX drivers > > (on Windows, http://www.kxproject.com) with the exact same card, an old > > SBLive Platinum, Ableton Live is usable with the record and playback > > period sizes (set via ASIO driver config) at 64 samples (2.33 ms > > latency) with nothing else running, and rock solid at 128 (~5 ms) in the > > face of basically anything you throw at it. Of course it crashes, as > > it's Windows, using an alpha quality third-party driver, but is quite > > usable in a live music setting. 512x2 is not really usable for my > > purposes. > > > > Is this assessment correct, and if so, can someone familiar with the > > SBLive ALSA driver give me an idea as to how this could be fixed? Could > > this be done via ALSA config files maybe? > > Your assessment is probably correct, I've brought up this issue a few times > before. Fact is the ALSA driver for emu10k1 does not allow to set the capture > buffer smaller than 512. Exactly why is still unknown, atleast to me. > Unfortunately I don't think it can be solved with configuration. > > Talking to the kx people would probably be a good idea if you wish to dive > deeper into this issue. The ALSA lists is another place to try. > > Regards, > Robert > > > > > > Lee
