[PlanetCCRMA] new laptop... new kernel... new distro...

Fernando Pablo Lopez-Lezcano nando@ccrma.Stanford.EDU
Tue Oct 14 15:54:01 2003

> Today I attempted to set up my audio devices.  The built in intel audio
> chip worked like a charm right out of the box.  Also using the
> sourceforge midisport project (should check it out Fernando, good to
> include in the planet) my oxygen8 works like a champ.
> The emagic emi 2|6 is another story.  I managed to get my modules.conf
> set up for two snd-usb-audio devices but... though the emagic makes
> sound it exhibits a strange behavior where it kind of "motor-boats",
> there's this persistent and measured clicking mixed in with the audio
> signal.  I've only used in under jackd so I'm not sure if it's jack or
> alsa (that'll be tomorrow). 

The current jack has a built in limitation with regards to usb alsa
devices that will be removed in newer versions. There was a LONG thread
about this in the jack list. If enforces the power-of-two buffer
limitation (that was in the original jack spec but was never enforced)
and usb devices are generally not happy with that. 

At some point I should try to release the same jack we currently have
but with the test removed so that it can run with any buffer size you

-- Fernando