On Thu, May 13, 2004 at 06:28:17PM +0200, Giuliano Pochini wrote: > Good question. The current approach is based on the control > names but sometimes they're not enough. What do you suggest ? I am testing changed aoss lib which uses dmix plugin to play simultaniously many stereo sound sources. Now I can use JavaSoundDemo, sound in Flash pages in mozilla, Q1, Q2 and Q3, xmms and mplayer at once. Of course playing simulaniously many Quake games is resource consuming and has no practical sense but for demonstration purposes its ok.
OK - there is many different hardware on the market and some cards are multichannel, some are not, some of them have limited mixers or none. So maybe we could create an abstract sound card which has a mixer and is a multichannel one (and could mix many 5.1 sources too ;-)). Now if a real card has ability to do this we use hardware, and if not we emulate functionality in software. Example of doing mixer functions on open PCM stream is a good one. Typical sound program just opens it's PCM stream, sets the volume level, plays sounds and exits closing stream. Of course we have programs which need know more about hardware. OK and this all should be supported too. But typical desktop usage is to play a few sounds simultaniously (desktop events, Internet music, browser sounds etc..) and set their volume independently. There are some sound daemons of course. But we have different daemons working with different desktops (KDE, GNOME) and even supporting particular group of programs. All of this is a big mess. So maybe better solution is to implement this functions at the sound card level. Regards -- Adam Tla/lka mailto:[EMAIL PROTECTED] ^v^ ^v^ ^v^ System & Network Administration Group ~~~~~~ Computer Center, Gdansk University of Technology, Poland PGP public key: finger [EMAIL PROTECTED] ------------------------------------------------------- This SF.Net email is sponsored by: SourceForge.net Broadband Sign-up now for SourceForge Broadband and get the fastest 6.0/768 connection for only $19.95/mo for the first 3 months! http://ads.osdn.com/?ad_id=2562&alloc_id=6184&op=click _______________________________________________ Alsa-devel mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/alsa-devel
