From mboxrd@z Thu Jan 1 00:00:00 1970 From: Gustavo da Silva Serra Subject: Still have choppy audio using 1.0.17 Date: Mon, 16 Jun 2008 17:04:56 -0300 Message-ID: <4856C768.1060404@tet.com.br> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Received: from einstein.tteng.com.br (mail.tteng.com.br [201.86.232.130]) by alsa0.perex.cz (Postfix) with ESMTP id AF836243F6 for ; Mon, 16 Jun 2008 22:04:53 +0200 (CEST) Received: from localhost (localhost.localdomain [127.0.0.1]) by einstein.tteng.com.br (Postfix) with ESMTP id AC66212000A for ; Mon, 16 Jun 2008 17:04:51 -0300 (BRST) Received: from [192.168.0.84] (gserra.tteng.com.br [192.168.0.84]) by einstein.tteng.com.br (Postfix) with ESMTP id 64528120008 for ; Mon, 16 Jun 2008 17:04:48 -0300 (BRST) 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 I have been trying for many weeks to solve this problem, but with no success. After updating to Alsa 1.0.17, which include changes to aloop, I still have choppy audio. I will try to summarize what happens: - I need to use aloop, if I change to a sound card all the problems are gone; - After some time of continuous play, applications start to reproduce choppy audio. Choppy audio doesn't happens all the time; - If I repeatedly start and stop my sound capture application choppy audio occur sooner; - Start/stop my application restores the sound quality (after some tryies); - This happens with ALSA applications (xine, vlc) and OSS emulated; - I have tryied many period_size and buffer_size in asound.conf, now I am using 960 for period and 3840 for buffer. As I decrease period size, the audio quality improves, but choppy audio still happens; - I test for overrun but no errors occur. - I am using block mode, interleaved, 44100, 16 bit, 2 channels - I am using dmix, dsnoop, removing them does not correct the audio These are some of the information I have, I don't know if is is enough. If necessary I can provide any other information. What do you suggest that I do? Are there any known issues or configuration requirements? Thanks in advance.