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From: "Daan Vreeken [PA4DAN]" <Danovitsch@Vitsch.net>
To: Ethan <telmnstr@757.org>
Date: Wed, 21 Jan 2004 19:52:17 +0100
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cc: FreeBSD-questions@FreeBSD.org
Subject: Re: USB sound device questions (multiples!)
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On Wednesday 21 January 2004 13:47, you wrote:
> > If they are all plugged in during boot they will get probed in the sa=
me
> > order every time you boot, so yes, they will be static.
> Okay, because this is going to be a fixed installation that will be pre=
tty
> much hands off.

> > Be sure to calculate if you have enough bandwidth available to drive =
such
> > a great number of devices at the same time though :
> > 48KHz * 16-bits sample * stereo * 6 devices =3D about 48 * 2 * 2 * 6 =
=3D
> >  1152 KB/sec .
> > That's about the maximum you can get over USB 1.0, so I'm not sure if=
 you
> > will be able to use them all at the same time at maximum playback rat=
e...
> > So it depends on the quality and sample-rate you need.
> I figured I would split them across two USB interface cards?
That should solve the bandwidth problems yes...

good luck,
Daan