From mboxrd@z Thu Jan 1 00:00:00 1970 From: =?ISO-8859-1?Q?Andreas_Bie=DFmann?= Subject: Re: Question to sophisticated alsa developer Date: Wed, 05 Aug 2009 16:02:07 +0200 Message-ID: <4A7990DF.2060606@corscience.de> References: <4A796779.6030204@corscience.de> <9e4733910908050546w3c268db9h7ccd4fa37ecd0099@mail.gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Return-path: Received: from moutng.kundenserver.de (moutng.kundenserver.de [212.227.17.8]) by alsa0.perex.cz (Postfix) with ESMTP id 43A2D1037FD for ; Wed, 5 Aug 2009 16:02:12 +0200 (CEST) In-Reply-To: <9e4733910908050546w3c268db9h7ccd4fa37ecd0099@mail.gmail.com> 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: Jon Smirl Cc: alsa-devel@alsa-project.org List-Id: alsa-devel@alsa-project.org Hi Jon, Jon Smirl schrieb: > When the last sample plays it generates an interrupt. ALSA sends a > STOP back after this interrupt. But the audio hardware continues > playing between this interrupt and receiving the STOP. Since the last > valid sample generated the interrupt, the hardware is playing garbage > (stale data) while waiting on the STOP. Probably 500us worth of stale > data., This sounds correct an I will investigate this. But I wonder why the stale data does not appear when I use aplay without dmix layer. Have you some explanation for this? regards Andreas Bie=DFmann