At Thu, 27 Mar 2003 23:14:22 -0400,In this case the card (not driver) is spliting the mono signal and sending it to both right and left channels of the codec. Thus channels_min should still be 1 because the card does actually support a single channel
Manuel Jander wrote:
...but, if you are doing mono playback, your sound driver has to setup
your soundcard to playback on both channels the same mono channel. The Vortex
driver (still not in the main branch) for example splits the mono signal on its internal
mixer into 2 identical signals which are feed one into each CODEC channels.
no, please don't do that. in the ALSA, instead of the lowlevel driver, alsa-lib (and oss-emulation module) will do this job.
the driver is supposed to inform exactly what it supports.
in this case, both channels_min and channels_max will be 2.
the difference of configuration will be absorbed by the plug-in of alsa-lib and oss-emulation module.
-Jeff
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