From mboxrd@z Thu Jan 1 00:00:00 1970 From: Takashi Iwai Subject: Re: SBLive 3d Positioning Date: Wed, 25 Sep 2002 17:45:56 +0200 Sender: alsa-devel-admin@lists.sourceforge.net Message-ID: References: <3D919CA5.5040700@adsmr.co.za> Mime-Version: 1.0 (generated by SEMI 1.14.4 - "Hosorogi") Content-Type: text/plain; charset=US-ASCII Return-path: In-Reply-To: <3D919CA5.5040700@adsmr.co.za> Errors-To: alsa-devel-admin@lists.sourceforge.net List-Help: List-Post: List-Subscribe: , List-Unsubscribe: , List-Archive: To: alfp@adsmr.co.za Cc: alsa-devel@lists.sourceforge.net List-Id: alsa-devel@alsa-project.org At Wed, 25 Sep 2002 13:23:17 +0200, Alftheo Potgieter wrote: > > Hi > > Does anybody know how to use the 3D positioning feature of the SB Live > card? I want to place a number of individual sounds in space. > > According to the ac97 spec, register 0x22 has bits for depth and center, > which would do what I want, but the STAC9708 only has audio > 'separation', which does not sound like specifying a position. > > Is the EMU10K1 and the STAC9708 two separate devices, or is it two > interfaces to the same underlying hardware? emu10k1 can do such a job potentially with its DSP engine, but it has nothing to do with AC97. and, on ALSA, such a dsp code is not implemented yet. you can try openAL for 3d positioning, although it's not hardware accelerated. Takashi ------------------------------------------------------- This sf.net email is sponsored by:ThinkGeek Welcome to geek heaven. http://thinkgeek.com/sf