From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from lists.gentoo.org ([140.105.134.102] helo=robin.gentoo.org) by nuthatch.gentoo.org with esmtp (Exim 4.54) id 1FBXui-0002oi-IU for garchives@archives.gentoo.org; Tue, 21 Feb 2006 13:50:49 +0000 Received: from robin.gentoo.org (localhost [127.0.0.1]) by robin.gentoo.org (8.13.5/8.13.5) with SMTP id k1LDo6rs030484; Tue, 21 Feb 2006 13:50:06 GMT Received: from mail01.emarketsouth.com (mail01.emarketsouth.com [208.247.233.6]) by robin.gentoo.org (8.13.5/8.13.5) with SMTP id k1LDo5HC019625 for ; Tue, 21 Feb 2006 13:50:05 GMT Received: (qmail 22255 invoked by uid 399); 21 Feb 2006 13:51:16 -0000 Received: from unknown (HELO onyx) (64.192.54.4) by mail01.emarketsouth.com with SMTP; 21 Feb 2006 13:51:16 -0000 Subject: Re: [gentoo-embedded] Audio on a 486 From: solar To: gentoo-embedded@lists.gentoo.org In-Reply-To: <43FA927D.2080903@gentoo.org> References: <43FA927D.2080903@gentoo.org> Content-Type: text/plain Organization: Gentoo Linux Date: Tue, 21 Feb 2006 08:50:03 -0500 Message-Id: <1140529803.27169.132.camel@onyx> Precedence: bulk List-Post: List-Help: List-Unsubscribe: List-Subscribe: List-Id: Gentoo Linux mail X-BeenThere: gentoo-embedded@gentoo.org Reply-to: gentoo-embedded@lists.gentoo.org Mime-Version: 1.0 X-Mailer: Evolution 2.2.3 Content-Transfer-Encoding: 7bit X-Archives-Salt: 9dabf9e5-a55c-49cc-a30d-324a3b019708 X-Archives-Hash: be8eacf5763dac7235afb86b79045b03 On Mon, 2006-02-20 at 23:09 -0500, Joe Sapp wrote: > Hi all, > > I've built a system using a uclibc stage1 tarball with the intention > of only running dropbear, boa, and some audio player on an old 486. > So far, it boots and I've got mplayer running using alsa as the audio > driver, but the audio is choppy at best (I've tried other audio > players with the same result). It isn't caught up on buffering or > anything like that, just seems that the processor is "too slow" (but > I've played audio on it before when it ran Windows 95). First, I > tried lowering the output sample rate, but that didn't fix anything. > I then switched to the OSS driver, which yielded some progress, but it > still remains choppy. got the CHOST= set at i486? I'm not totally shocked if you don't have decent audio. The i486 lacked mmx instructions iirc and a lot of the x86 audio code I've come by at gentoo depends on mmx or you end up with very generic routines. Try doing a little -Os -> -O[1-3] optimizations. > After doing some searches, it seems that I might have to fiddle with > the DMA settings of my audio card (an ALS100 ISA card). Can anybody > give me a suggestion on what I can try other than this or how to do > something like this in the first place? > -- solar Gentoo Linux -- gentoo-embedded@gentoo.org mailing list