From mboxrd@z Thu Jan 1 00:00:00 1970 From: Mark Brown Subject: Re: ALSA DMIX support without MMAP ? Date: Fri, 15 Jan 2010 13:37:19 +0000 Message-ID: <20100115133718.GA21188@rakim.wolfsonmicro.main> References: <17791994.52581263557220723.JavaMail.weblogic@epml09> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Received: from opensource2.wolfsonmicro.com (opensource.wolfsonmicro.com [80.75.67.52]) by alsa0.perex.cz (Postfix) with ESMTP id BAB5524471 for ; Fri, 15 Jan 2010 14:37:20 +0100 (CET) Content-Disposition: inline In-Reply-To: <17791994.52581263557220723.JavaMail.weblogic@epml09> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: alsa-devel-bounces@alsa-project.org Errors-To: alsa-devel-bounces@alsa-project.org To: ANISH KUMAR Cc: maniyar@samsung.com, "alsa-devel@alsa-project.org" List-Id: alsa-devel@alsa-project.org On Fri, Jan 15, 2010 at 12:07:00PM +0000, ANISH KUMAR wrote: > >The default linear resampler is not very good quality. You may use some > >sox resamplers from the alsa-plugins package, but they're more CPU > >intensive. Check google. > > Actually i am working on soc platform(android-S3C6410) and wanted to > use DMIX and some good resampler for my software mixing instead of > current software mixing and resampling in upper layer(Above > alsa-lib).DMIX is working fine but this resampling is causing some > jitter.During rate conversion it looks for > libasound_module_rate_speexrate.so which i don't have so its using > default one causing the jitter. Have you considered using PulseAudio for this?