On Mon, Oct 26, 2009 at 2:32 PM, Klaus Schulz <kls.schlz@xxxxxxxxxxxxxx> wrote: > Pretty simple - You IMO still did not answer the question. How about an > example for 2) ? > > For now the only way to sent a stream to e.g. the out3/4 of HDSPmixer > without going for 1)2)3) has been a multichannel wav. you've opened a device that has N channels. you have to send it N channels of data. there is no way around this. ALSA has no API for "write to channel 1", it only has "write N frames of audio". in fact, i don't know of any audio API that has such a mechanism. if you don't want to do that, then you need to configure some pseudo-devices that have the number of channels you want, and that use the route plugin to map the pseudo-device's channels to the "real" channels in the hw device. then open that device with your application. _______________________________________________ Linux-audio-user mailing list Linux-audio-user@xxxxxxxxxxxxxxxxxxxx http://lists.linuxaudio.org/mailman/listinfo/linux-audio-user