Date: Wed, 21 Jan 2004 19:52:17 +0100 From: "Daan Vreeken [PA4DAN]" <Danovitsch@Vitsch.net> To: Ethan <telmnstr@757.org> Cc: FreeBSD-questions@FreeBSD.org Subject: Re: USB sound device questions (multiples!) Message-ID: <200401211952.17086.Danovitsch@Vitsch.net> In-Reply-To: <20040121074548.S44235-100000@users.757.org> References: <20040121074548.S44235-100000@users.757.org>
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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
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