[linux-audio-user] USB-Audio latency

Chris Pickett chris.pickett at mail.mcgill.ca
Wed Jul 28 13:07:10 EDT 2004


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.  The default value is 4.  You can try setting it to lower
> values; the minimum is 1.

Just out of curiousity, does all this apply to USB-MIDI as well?

Chris



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