From mboxrd@z Thu Jan 1 00:00:00 1970 From: Dag Lem Subject: Re: [PATCH] Re: iec958 switch uneffective while playing ac3 stream Date: 22 Apr 2007 13:01:30 +0200 Message-ID: References: <4548D24F.7080409@slagter.name> <87648thdes.fsf@gandalf.hd.free.fr> <874podj8rw.fsf@gandalf.hd.free.fr> <87zm65htl3.fsf@gandalf.hd.free.fr> <87ircr7o8n.fsf@gandalf.hd.free.fr> <87ps6z3wbn.fsf_-_@gandalf.hd.free.fr> <87r6rbn7xp.fsf@gandalf.hd.free.fr> <87y7ler7ng.fsf@gandalf.hd.free.fr> <87k5wtjrev.fsf_-_@gandalf.hd.free.fr> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Received: from nimrod.no (sid.nimrod.no [195.139.160.2]) by alsa0.perex.cz (Postfix) with ESMTP id 5FFE5244BF for ; Sun, 22 Apr 2007 13:01:36 +0200 (CEST) In-Reply-To: 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: Takashi Iwai Cc: Dominique Dumont , alsa-devel@alsa-project.org List-Id: alsa-devel@alsa-project.org Takashi Iwai writes: [...] > The fix is already in HG tree, so please test the latest HG version > to confirm whether it's fixed. I finally got around to test the code in the HG tree. The S/PDIF output still works perfectly on the ALC882M. I ran PCM tests using all available frame rates (44.1kHz, 48kHz, 96kHz, 192kHz). I also tested AC3 (at 48kHz) and DTS (at 44.1kHz and 48kHz). Good work! That goes for Dominique as well, of course :-) The only fly in the ointment for the average user will be, I think, that HDA-Intel.pcm.default is using dmix. This effectively cuts most non-experts off from using anything but 48kHz, resulting in inferior sound quality (and unavailability to play back 44.1KHz DTS over S/PDIF) due to resampling. Perhaps dmix could be configured with more than one destination frame rate, so that resampling would only be used if absolutely necessary? Just a thought. -- Best regards, Dag Lem