Hi! The AlSA documentation does not mention such a limitation, and it would be way more logical to me :-)
Link to the docs: http://www.alsa-project.org/alsa-doc/alsa-lib/pcm_plugins.html#pcm_plugins_dmix BTW: Have you tried adding "channels 6" to the softvol and/or dmix definition? Best regards, Sebastian On Mi, 2007-01-10 at 10:51 +0100, Ingo Müller wrote: > Hi! > > As far as I understand it, "theoretically", it should work both ways. > You still have to do it the way that the dmix device is the last device, > because the dmix plugin requires a hardware slave (AFAIK). It can't pass > the sound data to a virtual device like softvol. > > Greets, Ingo > > Sebastian Schäfer schrieb: > > Hi! > > > > Possibly I am wrong, but shouldn't the order of softvol and dmix be just > > the other way round, so that all the streams are mixed together and then > > routed through softvol which outputs directly on the hardware? > > > > Best regards, > > Sebastian > > > > On Di, 2007-01-09 at 17:57 +0100, Ingo Müller wrote: > >> Hi! > >> > >> Below my asoundrc file (the relevant part). The first device overwrites > >> the default device and sends all incoming data to the second device. > >> That way, most applications will just continue to work using the default > >> device. The second device is the softvol device which should add a new > >> volume control "Master". If there was no such control before, mixers > >> like KMix or alsamixer will treat the new one as the actual master > >> volume control. This device passes its data to the third device, a dmix > >> device. I need this, because my sound card does not hardware mixing. > >> (Don't consider this as the absolute truth, this is only what I think I > >> found out by trail and error ;-)) > >> > >> The values like rate, period_time etc are specific to my hardware, too. > >> They may not be optimal. That solution is not complete, I think. I > >> didn't test OSS support nor capturing. I hope this helps anyway. Please > >> report back if it works for you. > >> > >> Greets, Ingo > >> > >> ---- > >> > >> # first > >> pcm.!default { > >> type plug > >> slave.pcm "softvol" > >> } > >> > >> # second > >> pcm.softvol { > >> type softvol > >> slave { > >> pcm "dmix" > >> } > >> control { > >> name "Master" > >> card 0 > >> } > >> } > >> > >> # third > >> pcm.dmix { > >> type dmix > >> ipc_key 1024 > >> slave { > >> pcm "hw:0,0" > >> rate 48000 > >> period_time 0 > >> period_size 1024 > >> buffer_time 0 > >> buffer_size 4096 > >> } > >> } > >> > >> ---- > >> > >> Emilio Scalise schrieb: > >>> Could you post the asound.conf/.asoundrc file and the link to the bug > >>> report... ;-) > >>> Thanks... > >>> > >>> 2007/1/7, Ingo Müller <[EMAIL PROTECTED]>: > >>>> Hi! > >>>> > >>>> If you don't have a master volume control at all, I can help you! I had > >>>> the same problem with an CMI7012 chip. Just create a softvol control and > >>>> name it "Master". Of course, every application that uses alsa has to use > >>>> a virtual device that goes sooner or later through that softvol device. > >>>> I don't know whether this is the perfect way to do it, but it did the > >>>> job for me and I think it's cleaner than a script sounds to me. > >>>> > >>>> What I'm missing in that solution is the mute function. I already filed > >>>> a wish in the bug tracking system. Maybe you could add a note to > >>>> underline the need of such a function, if you need it, too. > >>>> > >>>> I hope that helps you. > >>>> > >>>> Greets, Ingo > >>>> > >> > >> ------------------------------------------------------------------------- > >> Take Surveys. Earn Cash. Influence the Future of IT > >> Join SourceForge.net's Techsay panel and you'll get the chance to share > >> your > >> opinions on IT & business topics through brief surveys - and earn cash > >> http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV > >> _______________________________________________ > >> Alsa-user mailing list > >> Alsa-user@lists.sourceforge.net > >> https://lists.sourceforge.net/lists/listinfo/alsa-user > > > > ------------------------------------------------------------------------- > Take Surveys. Earn Cash. Influence the Future of IT > Join SourceForge.net's Techsay panel and you'll get the chance to share your > opinions on IT & business topics through brief surveys - and earn cash > http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV > _______________________________________________ > Alsa-user mailing list > Alsa-user@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/alsa-user ------------------------------------------------------------------------- Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT & business topics through brief surveys - and earn cash http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV _______________________________________________ Alsa-user mailing list Alsa-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/alsa-user
