Subject: Re: [LAU] recommendations for usb sound card?

From: Paul Winkler <pw_lists@...> · Date: Sunday, March 9, 2008 - 4:38 pm

On Sun, Mar 09, 2008 at 03:26:56PM +0100, Frank Barknecht wrote:

quoted text> USB-audio-guru Clemens Ladisch on LAU in 2005:

>

>   "Due to how the USB protocol works, all USB audio devices have the

>   same latency."

>

> http://lalists.stanford.edu/lau/2005/06/0200.html
Does Firewire get lower latency, or just better throughput?
What about USB 2 if/when freebob supports it?
And just to be clear - if I run jackd -r 48000 -p 64 -n3, is it

correct that the one-way latency in seconds is 64 * 3 / 48000.0 =

0.004?  So round-trip latency is twice that?

(Plus any converter overhead of course.)
-- 
Paul Winkler

http://www.slinkp.com

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