From owner-freebsd-multimedia@FreeBSD.ORG Mon Sep 5 07:10:56 2005 Return-Path: X-Original-To: freebsd-multimedia@freebsd.org Delivered-To: freebsd-multimedia@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id AFD7C16A41F for ; Mon, 5 Sep 2005 07:10:56 +0000 (GMT) (envelope-from clemens@ladisch.de) Received: from mailgate.uni-halle.de (mailgate.urz.uni-halle.de [141.48.3.51]) by mx1.FreeBSD.org (Postfix) with ESMTP id 45ADE43D45 for ; Mon, 5 Sep 2005 07:10:55 +0000 (GMT) (envelope-from clemens@ladisch.de) Received: from studcom.urz.uni-halle.de ([141.48.3.19]) by mailgate.uni-halle.de with esmtp (Exim 4.52) id 1ECB80-0002ca-Cn for ; Mon, 05 Sep 2005 09:10:52 +0200 Received: from localhost (aezr4@localhost) by studcom.urz.uni-halle.de (8.9.3 (PHNE_28760_binary)/8.9.3) with ESMTP id JAA04713 for ; Mon, 5 Sep 2005 09:10:51 +0200 (METDST) X-Authentication-Warning: studcom.urz.uni-halle.de: aezr4 owned process doing -bs Date: Mon, 5 Sep 2005 09:10:51 +0200 (METDST) From: Clemens Ladisch Sender: To: In-Reply-To: <200509022054.45785.hselasky@c2i.net> Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII X-Scan-Signature: 8a46a9913181300b63c8a1b6a7c824fb Subject: Re: uaudio fullduplex on 5.4-RELEASE? X-BeenThere: freebsd-multimedia@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Multimedia discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 05 Sep 2005 07:10:56 -0000 Hans Petter Selasky wrote: > Do you know of any USB audio devices that use USB 2.0? Behringer BCA2000: completely vendor-specific. Edirol UA-1000: capture seems to work, but playback data must be synchronized to the capture sample rate. SB Audigy 2 NX: uses high speed only after explicitly enabled by a vendor-specific command, but is then almost class compliant. > You might have to change the code a little bit, hence USB 2.0 > processes 8 times as many frames per second as USB 1.x. Not always -- high speed iso endpoints can set bInterval, too (the Audigy 2 NX does). Regards, Clemens