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Date:      Wed, 21 Jan 2004 07:47:00 -0500 (EST)
From:      Ethan <telmnstr@757.org>
To:        "Daan Vreeken [PA4DAN]" <Danovitsch@Vitsch.net>
Cc:        FreeBSD-questions@FreeBSD.org
Subject:   Re: USB sound device questions (multiples!)
Message-ID:  <20040121074548.S44235-100000@users.757.org>
In-Reply-To: <200401210948.04982.Danovitsch@Vitsch.net>

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> If they are all plugged in during boot they will get probed in the same order
> every time you boot, so yes, they will be static.

Okay, because this is going to be a fixed installation that will be pretty
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 = about 48 * 2 * 2 * 6 =
>  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 rate... So it
> depends on the quality and sample-rate you need.

I figured I would split them across two USB interface cards?




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