[linux-audio-user] alsa rme96 jack - 186 msec latency?

[Lee Revell]

On Tue, 2005-09-06 at 20:51 -0400, Paul Davis wrote:
> On Wed, 2005-09-07 at 01:36 +0200, Michael Rudolf wrote:
> > I bought an RME Digi96/8 PST because it was said to have good Linux support 
> > and very low latency, therefore perfectly suitable for hd-recording and 
> > the like.
> 
> where does it say this? the digi96/8 is an entirely different product
> (different h/w design, different chipset, different interactions with
> the host CPU) from the digi9652, HDSP and HDSP9652 systems. this latter
> range is well supported and works exceedingly well on almost all
> systems. the digi96/8 has support, but it does not work particularly
> well, especially not for low latency work (this is not because of the
> driver design (other than the overall way that ALSA works), but because
> of the h/w design).

He probably just got the impression that all non-firewire RME stuff was
well supported under Linux.  That's what I thought...

How exactly does the hardware design not play nice with ALSA?  Does it
need variable period sizes to do low latency?  It seems like the ASIO
drivers must be able to do < 3-5 ms on Windows or it would not be
marketable...

Lee