From mboxrd@z Thu Jan 1 00:00:00 1970 From: Clemens Ladisch Subject: Re: Intermittent cut out on the video Date: Fri, 06 Dec 2013 10:06:51 +0100 Message-ID: <52A193AB.2090202@ladisch.de> References: , , , , , , , <5296FEF9.2020604@ladisch.de>, , , , , , , , <529DD914.7060205@ladisch.de>, , Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Received: from out2-smtp.messagingengine.com (out2-smtp.messagingengine.com [66.111.4.26]) by alsa0.perex.cz (Postfix) with ESMTP id B7749261B07 for ; Fri, 6 Dec 2013 10:06:57 +0100 (CET) Received: from compute6.internal (compute6.nyi.mail.srv.osa [10.202.2.46]) by gateway1.nyi.mail.srv.osa (Postfix) with ESMTP id D30B320C21 for ; Fri, 6 Dec 2013 04:06:52 -0500 (EST) In-Reply-To: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: alsa-devel-bounces@alsa-project.org Sender: alsa-devel-bounces@alsa-project.org To: Dolevo Jay , "alsa-devel@alsa-project.org" List-Id: alsa-devel@alsa-project.org Dolevo Jay wrote: > I have come to conclusion that this issue is way more complex that I > thought and won't be "possible" to implement even with the help of > pulseaudio Doesn't module-combine-sink work? > What I don't understand, ok one of the sound card gets drifted over > time if two sound cards are employed in the system and therefore I got > cut outs but why doesn't this happen if I use the same sound card > alone? The playback speed is determined by the hardware, not by the application. When an application tries to write more data than is currently possible, ALSA will just wait. This does not work if the playback is coming in real time from a source whose speed you cannot control, such as an S/PDIF input or broadcasting TV. In that case, you eventually get the same problem. Regards, Clemens