From mboxrd@z Thu Jan 1 00:00:00 1970 From: Manuel Jander Subject: Re: PCM hw mixing with volume Date: Sun, 07 Mar 2004 12:36:29 -0400 Sender: alsa-devel-admin@lists.sourceforge.net Message-ID: <1078677389.1477.31.camel@localhost> References: <1078671074.18057.17.camel@renegade> Reply-To: manuel.jander@mat.utfsm.cl Mime-Version: 1.0 Content-Type: text/plain Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <1078671074.18057.17.camel@renegade> Errors-To: alsa-devel-admin@lists.sourceforge.net List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , List-Archive: To: Alsa Devel list List-Id: alsa-devel@alsa-project.org Hi, Aureal Hardware can do this in hardware, but this feature has not been exposed. I would be interested :D Maybe this could be done using some well defined controls. That would be needed for OpenAL support anyway. Any comments ? Best Regards Manuel Jander On Sun, 2004-03-07 at 10:51, Ove Kaaven wrote: > We have some games that want to mix several dynamic sound streams. > That's easy enough at first glance, just snd_pcm_open() for each stream > they want to output (and do software mixing when that fails). However, > it seems that they want each stream to have independent volume and pan > controls. > > As far as I can tell, this is possible to do on SB Live and Audigy by > messing with the "EMU10K1 PCM Send" volume controls, but this is pretty > device-specific and few other hw-mixing ALSA drivers seem to have > exposed such a feature. (And software plugins are not of interest.) > > Are you planning to standardize such features or design a > device-independent API for it? (And my manager wants to know which ALSA > release this might get implemented in...) > > > > > ------------------------------------------------------- > This SF.Net email is sponsored by: IBM Linux Tutorials > Free Linux tutorial presented by Daniel Robbins, President and CEO of > GenToo technologies. Learn everything from fundamentals to system > administration.http://ads.osdn.com/?ad_id=1470&alloc_id=3638&op=click > _______________________________________________ > Alsa-devel mailing list > Alsa-devel@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/alsa-devel ------------------------------------------------------- This SF.Net email is sponsored by: IBM Linux Tutorials Free Linux tutorial presented by Daniel Robbins, President and CEO of GenToo technologies. Learn everything from fundamentals to system administration.http://ads.osdn.com/?ad_id=1470&alloc_id=3638&op=click