At Thu, 03 Dec 2009 15:38:27 +0100, Christopher Schramm wrote: > > Takashi Iwai wrote: > > Could you post a patch so that I can apply it to GIT tree? > > Sure. Please find attached. In addition to the changes described, I've > changed an error message and extended the chlist. Thanks. Now committed to GIT tree. > But there are two points to pay attention to: > > 1) What do you think about 3 and 7 channel sources? Should they be > addressed more specific? A good question. 3 channels is already there, assuming 2.1 channels. I suppose it's OK, but would be there more popular configuration? 7 channels are not properly implemented because I'm not sure which channel mapping is the popular one for it. > 2) In upmix_2_to_71 I had to decide how to copy front to side. I first > tried to use the delayed copy. It mangled the sound quality - not sure > why. So I used the simple copy. I think the best solution would be to > use about half the delay of the rear speakers. So maybe there should be > something like half_delayed_copy which uses mix->delay_ms / 2. ;-) Hm, the delay code might have some issues. Unfortunately I have really little time for now for tracking this... Would be appreciated if you can hunt more. thanks, Takashi ------------------------------------------------------------------------------ Join us December 9, 2009 for the Red Hat Virtual Experience, a free event focused on virtualization and cloud computing. Attend in-depth sessions from your desk. Your couch. Anywhere. http://p.sf.net/sfu/redhat-sfdev2dev _______________________________________________ Alsa-user mailing list Alsa-user@xxxxxxxxxxxxxxxxxxxxx https://lists.sourceforge.net/lists/listinfo/alsa-user
