Subject: Re: [linux-audio-user] USB-Audio latency
From: Clemens Ladisch (clemens_AT_ladisch.de)
Date: Thu Jul 29 2004 - 10:06:04 EEST
Chris Pickett wrote:
> Clemens Ladisch wrote:
> > Polashek, Matthew wrote:
> >>2 - What the minimum latency of a USB-audio device is with Linux?
> > I guess around 10 ms with default settings.
> > The snd-usb-audio module has an undocumented parameter "nrpacks"
> > which is equivalent to the number of milliseconds between USB
> > interrupts.
> Just out of curiousity, does all this apply to USB-MIDI as well?
No, USB MIDI packets are sent/received as fast as the USB can handle
it (in 1 ms frames). Well, if the computer handles interrupts fast
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