From mboxrd@z Thu Jan 1 00:00:00 1970 From: Vasilis Manwlopoulos Subject: Surround problems with cs46xx Date: Sat, 16 Jun 2007 16:56:53 +0300 Message-ID: <4673EC25.1020507@gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Received: from ug-out-1314.google.com (ug-out-1314.google.com [66.249.92.172]) by alsa0.perex.cz (Postfix) with ESMTP id C40E61038DB for ; Sat, 16 Jun 2007 15:56:54 +0200 (CEST) Received: by ug-out-1314.google.com with SMTP id o2so1077126uge for ; Sat, 16 Jun 2007 06:56:54 -0700 (PDT) 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: alsa-devel@alsa-project.org List-Id: alsa-devel@alsa-project.org Hi, Sorry for bothering the list again, but I have major problems with the surround 5.1 sound. I have manually compiled/installed th latest alsa-1.0.14 drivers but nothing improved. I am using Ubuntu 7.04 and my soundcard is the Hercules Fortissimo III. This is, as far as I know by reading on Internet, supported by the module snd-cs46xx in ALSA. I have enabled the surround sound by creating the following .asoundrc file. pcm.!default { type plug slave.pcm "surround51" slave.channels 6 route_policy duplicate } The problem is that sound pauses whenever I try to do something "heavy" such as opening a new firefox window or generally another app. Also, there are delays and echo between the front and the rear speakers from time to time. I think that the problem is that, this alsa setup(meaning surround5.1 and the specific soundcard) places a heavy load on the cpu. There are 99% cpu usage times when the only thing active is a player playing a "normal bitrate" mp3. When I delete the .asoundrc file and I switch to default stereo sound using only the 2 front speakers the problems disappear. Can anyone suggest anything about this? Thanks in Advance V.Manolopoulos