From owner-freebsd-multimedia@FreeBSD.ORG Fri Nov 25 15:53:28 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 D231116A41F for ; Fri, 25 Nov 2005 15:53:28 +0000 (GMT) (envelope-from skywizard@MyBSD.org.my) Received: from tomoyo.MyBSD.org.my (tomoyo.mybsd.org.my [202.157.186.227]) by mx1.FreeBSD.org (Postfix) with ESMTP id 0F92343D67 for ; Fri, 25 Nov 2005 15:53:26 +0000 (GMT) (envelope-from skywizard@MyBSD.org.my) Received: from localhost (localhost [127.0.0.1]) by tomoyo.MyBSD.org.my (Postfix) with ESMTP id 38B456CC23; Fri, 25 Nov 2005 23:56:58 +0800 (MYT) Received: from tomoyo.MyBSD.org.my ([127.0.0.1]) by localhost (TOMOYO.MYBSD.ORG.MY [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 69870-08; Fri, 25 Nov 2005 23:56:56 +0800 (MYT) Received: from osaka (osaka.MyBSD.org.my [IPv6:2001:328:2002:aa2:2c0:9fff:fed2:b55]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by tomoyo.MyBSD.org.my (Postfix) with ESMTP id 7296B6CC22; Fri, 25 Nov 2005 23:56:56 +0800 (MYT) Date: Fri, 25 Nov 2005 23:53:18 +0800 From: Ariff Abdullah To: Sascha Klauder Message-Id: <20051125235318.06250835.skywizard@MyBSD.org.my> In-Reply-To: <20051125153348.GA6748@trimind.de> References: <20051124215447.GA790@trimind.de> <20051125131548.sx9hpr45dvoc0gss@netchild.homeip.net> <20051125153348.GA6748@trimind.de> Organization: MyBSD X-Mailer: /usr/local/lib/ruby/1.8/net/smtp.rb Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable X-Virus-Scanned: by Amavisd AntiVirus & AntiSpam Scanner running on FreeBSD mailserver at TOMOYO.MYBSD.ORG.MY Cc: freebsd-multimedia@freebsd.org Subject: Re: Sound card recommendations? 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: Fri, 25 Nov 2005 15:53:28 -0000 On Fri, 25 Nov 2005 16:33:48 +0100 Sascha Klauder wrote: > On Fri, Nov 25, 2005 at 01:15:48PM +0100, Alexander Leidinger wrote: > > Sascha Klauder wrote: > > >treble mixer controls. I've got an SB Live! as well, and it > > >just sounds crappy in comparison to the AWE, even with 4Front > > >drivers. > > Which FreeBSD version did you used to test? If anything below a > > recent >=20 > I'm running a recent 6.0-STABLE with PREEMPTION and=20 > hw.snd.pcm0.buffersize set to 16384. >=20 > > (http://people.freebsd.org/~ariff/)? If with the patches: did you > > played with with the new pci latency_timer sysctl (it may help to > > get a very good sound output)? >=20 > I'm well aware of Ariff's quite excellent patchset, but > I was not refering to the problem with crackling noise and > stuttering output on SB Live cards. =20 >=20 > Without lapsing into an audiophile discussion, the Live > card sounds just =BBflat=AB in comparison to the AWE64 with > properly adjusted bass and treble mixers. >=20 This is a known deficiency of sblive especially among audiophiles. Its internal sample rate converter (convertor?) and the behaviour of sampling everything out as 48k are pretty much unsatisfactory. Now, if you're talking about crackling or stuttering sound, you should give those patchsets a try. If you think something had to be done about the pci latency timer, you can use pciconf(8) to adjust/increase its value or perhaps using this wrapper: http://people.freebsd.org/~ariff/utils/pcilattimer .. since pci latency_timer is available only for snd_es137x. -- Ariff Abdullah MyBSD http://www.MyBSD.org.my (IPv6/IPv4) http://staff.MyBSD.org.my (IPv6/IPv4) http://tomoyo.MyBSD.org.my (IPv6/IPv4)