AW: [Alsa-user] M-Audio Delta 1010 sox buffer error

[Philipp P. <Phi...@gm...>]

Hello Fernando!

Thank you for your fast answer. I now downloaded the new alsa driver 0.9.0
beta5. Unfortunately I have problems to install it. I logged in as 'root',
unpacked "alsa-driver-0.9.0beta5.tar.bz2" to a directory and started the
installation according to 'INSTALL.TXT' by running './configure'. But after
a few operations the script aborts with the message that the directory
'/usr/src/linux' were not available. And really there is no '/usr/src/linux'
directory on my linux partition. Is there something I have to add to my
linux installation? And do I also have to install 'alsa-lib' and
'alsa-utils'?

Yours,
Philipp

-----Ursprüngliche Nachricht-----
Von: als...@li...
[mailto:als...@li...]Im Auftrag von Fernando
Pablo Lopez-Lezcano
Gesendet: Freitag, 29. Juni 2001 20:55
An: Phi...@gm...
Cc: als...@li...
Betreff: Re: [Alsa-user] M-Audio Delta 1010 sox buffer error


> I have a M-Audio Delta 1010 soundcard and Linux Mandrake 8.0 with ALSA
> 0.5.9c and Linux kernel 2.4.3-20mdk. Unfortunately the soundcard works
fine
> with Windows98 but doesn't work with Linux. I use the ALSA Envy24 driver
> (IC Ensemble ICE1712). Testing the soundcard in HardDrake I get the error
> message: "sox: Invalid audio buffer size 0". I get no system sounds and I
> cannot play audio files (e. g. with Xmms).

The alsa driver follows the ICE1712 hardware in that it
requires a full 10 channel stream for playback (always) or a
12 channel stream for capture (always). AFAIK the hardware in
professional mode (and by extension, the alsa driver) cannot
play, for example, a stereo soundfile. A 0.5.* alsa native
application that respects the native API supplied channel
limits will play such a soundfile (or complain with a
hopefully meaningful error message). The OSS emulation layer
in 0.5.* does not properly support multichannel soundcards
such as the Midiman so that sox or xmms will fail (they will
try to send a stereo stream but the driver needs a 10 channel
stream and the library does not make up for the difference).

Under 0.9.* the alsa library can convert formats and channel
widths on-the-fly so that OSS emulation works correctly with
multichannel cards like the Midiman.

-- Fernando

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