On Sun, 24 Mar 2002, Ken McMillan wrote: > Actually, I think I found the problem. I was using the maximum number > of playback and captures channels reported by the device. For > "plughw", this number is apparently 10000, rather than the actual > number the hardware supports! I guess what I have to do is open the > "hw" device first to get the actual number of channels, then open > "plughw" with that number of channels.
This is something of a FAQ, it seems to come up every month or so (at least it has since i asked it a few months ago ;-) -- the answer is that plughw can do lots of conversion for you, and downmixing (not sure if that's the proper term) 10000 channels into 1 or 2 is certainly plausible, i suppose. So that probably sounds pretty silly to you, and it did to me too, but the essence of the answer is that you have no business knowing how many channels the hardware supports. Like it or not, that's the way it is. The flexibility of alsa devices, given the asoundrc, is so large that concepts like 'how many channels does this device support' can be meaningless sometimes. good luck, wingo. _______________________________________________ Alsa-devel mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/alsa-devel
