At Wed, 20 Feb 2002 08:50:23 -0500 (EST), Adam K Kirchhoff wrote: > > > On Wed, 20 Feb 2002, Takashi Iwai wrote: > > > At Mon, 18 Feb 2002 22:45:07 EST (-0500), > > Adam K Kirchhoff wrote: > > > > > > > > > I'm curious if anyone has gotten one of the ymfpci cards to work with > > > > > > front and rear output with the OSS emulation? Is it even supported at > > > > > > this point? > > > > (please note i myself didn't test the following:) > > > > the rear pcm assigned to device #2. so at first please check whether > > the driver really supports rear speakers by playing via hw:0,2, i.e. > > It does.... Alsa has natively supported both the front and rear channels > for a number of months now, iirc. > > > % aplay -Dhw:0,2 foo.wav > > Yep. That works fine. > > One of the first things I'm noticing now, however, is that the only Alsa > application that seems to use the rear speakers is aplay, and only when > specified. For example, alsaplayer will still only use the front > speakers. it's a problem of alsaplayer. doesn't work "alsaplayer -d hw:0,2" ?
> Now, is this something that needs to be set up in the .asoundrc file? Is > this documented somewhere? no, you don't need to edit asoundrc. to the latter question - again - no. no documents, so far. > > if it's ok, please try to add the following option to snd-pcm-oss: > > > > options snd-pcm-oss snd_adsp_map=2 > > > > so that hw:0,2 is mapped to /dev/adsp. > > Done. But what exactly does this give me :-) I hate to seem like an > idiot, but my only other experience with the alsa drivers is with a SB > Live! With the SB Live!, you don't need to take any extra steps to get > both the front and rear channels working. I certainly don't remember > having to setup anything for /dev/adsp :-) hmm, i'm not sure whether sb live supports rear outputs on OSS emulation mode.. does it? > I see a couple references to adsp in the alsa-howto, but nothing that > really explains how to set it up and use it :-) well, this is also not documented. i'm going to write a brief note later. > > The another possibility is to use ALSA OSS wrapper library. > > You can define like this in your ~/.asoundrc > > > > pcm.adsp0 pcm.rear > > > > then run program via aoss wrapper. > > Is this documented somewhere, too? Searching for "aoss wrapper" in google > doesn't turn up anything, and the search mechanism on the Alsa homepage > seems to be broken (someone might want to remove it till it gets fixed) > :-) it's included in alsa-oss package. aoss is a very small wrapper script. there is a man page, so please refer to it. and, i should answer before you ask; the usage of alsa-oss lib is also almost undocumented :-< Takashi _______________________________________________ Alsa-devel mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/alsa-devel
