Re: emu10k1 latency / capture period

[Lee Revell <rlrevell@joe-job.com>]

On Wed, 2004-06-16 at 16:52, James Courtier-Dutton wrote:
> Lee Revell wrote:
> > Hey,
> > 
> > I am having a problem with the emu10k1 driver where I am unable to set
> > the capture period lower than 512.  The result is that the lowest
> > achievable input to output latency is in the neighborhood of 40ms.
> > 
> 
> This is due to a hardware restriction on the card.
> The SB Live/Audigy have limits on the capture period sizes, but the 
> playback is much more flexible.
> 

If this is a hardware limitation, then how do the ASIO drivers on
Windows accomplish this?  Using either the kX project ASIO drivers or
the ASIO drivers you get from Creative (if you get the high end model
with the breakout box), this card can achieve an input to output latency
in the neighborhood of 5ms.

Are they using some undocumented hardware feature of the card?

Lee



-------------------------------------------------------
This SF.Net email is sponsored by The 2004 JavaOne(SM) Conference
Learn from the experts at JavaOne(SM), Sun's Worldwide Java Developer
Conference, June 28 - July 1 at the Moscone Center in San Francisco, CA
REGISTER AND SAVE! http://java.sun.com/javaone/sf Priority Code NWMGYKND