[alsa-devel] [PATCH] Re: iec958 switch uneffective while playing ac3 stream

Dominique Dumont domi.dumont at free.fr
Fri Apr 6 21:10:23 CEST 2007

Takashi Iwai <tiwai at suse.de> writes:

> OK, now it's on HG tree.


> While we're at it...  I did a quick hack to add a new mixer element to
> choose the SPDIF playback route, either "Analog Duplicate" or
> "Exclusive PCM".  (On AD codecs, it has more items for analog

Hmm, I hope you won't think I'm nitpicking, but this term "Exclusive
PCM" might be misleading as AC3 or DTS streams are not PCM...

May be "Exlusive Digital" would be better... Does any native english
speaker have a better suggestion ?

> loopbacks.)  This will solve one remaining problem, "SPDIF is blocked
> by analog open".

That's great news ! Thanks a bunch.

> Of course, this has another problem that user may choose an
> incorrect value accidentally, but I come to believe it's better than
> a module option.

Yes. In order to allow the user to spot unfortunate stteing, it's
important to choose carefully label for mixer switches.


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