From mboxrd@z Thu Jan 1 00:00:00 1970 From: Takashi Iwai Subject: Re: [PATCH] emu10k1: add 96Khz support and setting sample rate for direct SPDIF output Date: Thu, 10 Feb 2005 12:54:03 +0100 Message-ID: References: <1107724363.4212.74.camel@krustophenia.net> <1107898312.27048.52.camel@krustophenia.net> Mime-Version: 1.0 (generated by SEMI 1.14.5 - "Awara-Onsen") Content-Type: text/plain; charset=US-ASCII In-Reply-To: <1107898312.27048.52.camel@krustophenia.net> Sender: alsa-devel-admin@lists.sourceforge.net Errors-To: alsa-devel-admin@lists.sourceforge.net List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , List-Archive: To: Lee Revell Cc: alsa-devel , James Courtier-Dutton List-Id: alsa-devel@alsa-project.org At Tue, 08 Feb 2005 16:31:52 -0500, Lee Revell wrote: > > On Tue, 2005-02-08 at 20:45 +0100, Takashi Iwai wrote: > > At Sun, 06 Feb 2005 16:12:43 -0500, > > Lee Revell wrote: > > > > > > This patch should add support for 96Khz "direct SPDIF" aka "SPDIF > > > Bypass" (not P16V) playback mode available on the Audigy1 and 2 and > > > newer SBLives (?). It lets you bypass the 48khz DSP resampling when > > > using the card in digital mode. It also adds 96khz analog playback > > > support, good for testing but less interesting because it's downsampled > > > to 48khz. A new mixer control "Audigy SPDIF Output Sample Rate" is > > > created, you can choose 44100, 48000, or 96000. Standard SPDIF > > > playback, AC3 passthrough (real 96khz playback), and analog playback > > > (96khz is resampled to 48khz in the DSP) all work with a 16 bit,96khz > > > wav file. Only the last was tested due to lack of any SPDIF hardware. > > > > What happens if you play in a non-matching sample rate or a strange > > rate like 45000Hz? > > > > Works fine in analog mode. I just made a 51000Hz wave file and it > played fine, sounds exactly like the 48KHz original. For SPDIF bypass > mode it would presumably get resampled to 44.1, 48, or 92Khz depending > on the control setting. OK, now I applied the patch to CVS. thanks, Takashi ------------------------------------------------------- SF email is sponsored by - The IT Product Guide Read honest & candid reviews on hundreds of IT Products from real users. Discover which products truly live up to the hype. Start reading now. http://ads.osdn.com/?ad_id=6595&alloc_id=14396&op=click