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 -- http://spamatica.se/music/
