At Wed, 12 Feb 2003 20:21:31 +0100 (CET), Jaroslav wrote: > > On Wed, 12 Feb 2003, Marc Titinger wrote: > > > This looks Great ! > > > > I haven't yet experimented a lot with .asoundrc files, so please excuse > > me if the following questions are irrelevant or OTO, but: > > > > I was wondering if one could define a plug pcm, that offers two stereo > > pairs routed with policy "average" to a single-stereo "hw" slave. > > > > My understanding is that until this dmix pcm, there was no "official" > > means supported by alsalib to achieve software mix of streams comming > > from differents apps. > > Yes, that's true.
well, route (or plug) has the capability for software mix (in a certain meaning), but not for separate pcm streams. you can downmix the multi-channels in a stream via route plugin if the channels is given. but it's defenitely different from what dmix plugin does, and perhaps it's different from what Marc wants, too... > > Could I have one app open the first pair of my hypothetic plug pcm, and > > another app open the second pair ? I guess this would be managed like a > > concurrent access to a pcm, and block or fail the second open() call. > > > > Would'nt it be nice to create a dmix pcm "behind" a such plug pcm, to > > provide mix in a transparent way ? > > Some cards with multiple open hardware acceleration doesn't need this > default. Also, the dmix plugin has some limited things so I don't prefer > to select it as default. agreed here, although i feel it's also nice to set it as default for a consumer card which has no hardware mix function. please note that you can re-define the default in asoundrc. if you want to set up dmix as the system default, you can define it in /etc/asound.conf, too. Takashi ------------------------------------------------------- This sf.net email is sponsored by:ThinkGeek Welcome to geek heaven. http://thinkgeek.com/sf _______________________________________________ Alsa-devel mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/alsa-devel
