Hi,
I used to apply a Dolby Pro Logic II encoding this way :
"-af aresample=matrix_encoding=dplii -ac 2"
But I learned that "-ac 2" does a full downmix of the 5.1 stream, which
is not what I want : after the DPL II resampling one simply want to
extract the 2 (encoded) front channels and that's it...
The other question is: why the output of the DPL II encoding is still a
5.1 stream, and not just a 2.0 stream ?
I'm a bit lost... and will appreciate any explanation.
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