[alsa-devel] how to enumerate useful ALSA devices?

Raymond Yau superquad.vortex2 at gmail.com
Thu Jan 5 14:30:23 CET 2012


2012/1/5, Joerg-Cyril.Hoehle at t-systems.com <Joerg-Cyril.Hoehle at t-systems.com>:
> Andrew Eikum wrote:
>>I tried experimenting with snd_device_name_hint().
>>surround40:CARD=SB,DEV=0
>>surround41:CARD=SB,DEV=0
>>surround50:CARD=SB,DEV=0
>>surround51:CARD=SB,DEV=0
>>surround71:CARD=SB,DEV=0
> I'm not sure Wine should enumerate these.  How can it tell the difference
> so as to announce the correct channel mapping to applications?
> E.g. 41 vs 50, both 5 channels? Ideally, that should be announced as
> one device (as it really is), capable of supporting different formats,
> with one preferred format (perhaps the one with most channels) that
> GetMixFormat uses.
>
> OTOH, I find it important that Wine announces a device capable of more
> than stereo if there's one in the system.
>

Does windows really support 41 or 50 ?

All those Creative 4.1 speakers only have front and green jacks (i.e.
the signal for subwoofer is generated by hardware from front and rear
)


e09736109edc978c0e676cbbb5bfef84bdd1d666

Added surround41 and surround50 definitions


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