From owner-freebsd-multimedia@FreeBSD.ORG Sat Apr 23 05:21:29 2011 Return-Path: Delivered-To: freebsd-multimedia@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 092D8106566C for ; Sat, 23 Apr 2011 05:21:29 +0000 (UTC) (envelope-from hselasky@c2i.net) Received: from swip.net (mailfe05.c2i.net [212.247.154.130]) by mx1.freebsd.org (Postfix) with ESMTP id 90F868FC14 for ; Sat, 23 Apr 2011 05:21:28 +0000 (UTC) X-Cloudmark-Score: 0.000000 [] X-Cloudmark-Analysis: v=1.1 cv=upTJuTb3ngPPUUVVSPoyO7jwIWz3rzPtkQxI490l6Ks= c=1 sm=1 a=IU0TiZmyZPMA:10 a=yNLj92IrXO4A:10 a=WQU8e4WWZSUA:10 a=8nJEP1OIZ-IA:10 a=CL8lFSKtTFcA:10 a=i9M/sDlu2rpZ9XS819oYzg==:17 a=9yZP8xac0nw4vZQKLpwA:9 a=wPNLvfGTeEIA:10 a=i9M/sDlu2rpZ9XS819oYzg==:117 Received: from [188.126.198.129] (account mc467741@c2i.net HELO laptop002.hselasky.homeunix.org) by mailfe05.swip.net (CommuniGate Pro SMTP 5.2.19) with ESMTPA id 116601042; Sat, 23 Apr 2011 07:21:24 +0200 From: Hans Petter Selasky To: freebsd-multimedia@freebsd.org Date: Sat, 23 Apr 2011 07:20:26 +0200 User-Agent: KMail/1.13.5 (FreeBSD/8.2-PRERELEASE; KDE/4.4.5; amd64; ; ) References: In-Reply-To: X-Face: *nPdTl_}RuAI6^PVpA02T?$%Xa^>@hE0uyUIoiha$pC:9TVgl.Oq, NwSZ4V"|LR.+tj}g5 %V,x^qOs~mnU3]Gn; cQLv&.N>TrxmSFf+p6(30a/{)KUU!s}w\IhQBj}[g}bj0I3^glmC( :AuzV9:.hESm-x4h240C`9=w MIME-Version: 1.0 Content-Type: Text/Plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Message-Id: <201104230720.26203.hselasky@c2i.net> Cc: Subject: Re: uaudio, M-Audio FastTrack Pro device - sound distorted 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: Sat, 23 Apr 2011 05:21:29 -0000 On Saturday 23 April 2011 04:15:01 Marcel Bonnet wrote: > Hi, folks. > > I'm using the M-AUDIO FastTrack Pro USB audio interface, but every time I > play or record, the sound get distorted. > If I record a clean guitar, it sounds like using a light distortion/driver. > Any mp3 or wav I play is distorted too, especialy the higher notes. > This device has it's own mixer. I'm sure the sound is not clipping because > the interface has its own knobs (volume/gain for in/out) and a led for > clipping indication. > > I tried to change the volume using the mixer command - nothing changed. > I thought the problem could be the frequency rate: tried the sysctl > dev.pcm.0.play.vchanmode (tried the 3 values without any difference) and > the dev.pcm.0.play.vchanrate (but the system always mantain the same freq > = 44100). No sucess too. > > I just don't know what to do. Don't even know if I'm in the right > direction. Maybe it could be a driver's problem? > I apreciate any help. Below there are some information. Hi, What does the distortion look like in audiacity? --HPS