Le 21.02.2014 17:22, Yoann QUERET a écrit :
> Hi,
>
> I use alsa as input (device = "hw:0,0") and some time i can have a
> problem on left or right input (not a problem with liq but with a
> cable,
> or with the source, ...).
>
>
> Is there any way to copy left on right channel if right channel level
> is under X dB ? and the same in reverse order ?
> Is it possible to give the level for each channel ? and copy a
> channel
> to an other ? (both in live)
>
> I have not view any functions in API documentation to solve my
> problem.
I reply to my self, but i have not a complet solution.
First i need to use liq 1.0.1 (upgrade our system to lastest version is
to complicated at this time)
I have made this liq test file, and it run with stereo & Left channel
only but not with right channel only.
I have trying to swap Fallback and mux_mono order but the result is the
same, Right channel only not fallback.
Have you an idea to solve this problem ?
# Input
source = input.alsa(
device = "hw:0,0"
)
# Extract the right/Left channel of a stereo source
def stereo.left(source)
mean(stereo.pan(pan=-1., source))
end
def stereo.right(source)
mean(stereo.pan(pan=1., source))
end
# Extract L/R
sourceL = stereo.left(source)
sourceR = stereo.right(source)
# L/R Fallback
sourceL = fallback(track_sensitive=false,
[ strip_blank(length=5., threshold=-40., sourceL),
sourceR ])
sourceR = fallback(track_sensitive=false,
[ strip_blank(length=5., threshold=-40., sourceR),
sourceL ])
# Mux L/R
source = mux_mono(mono=sourceL, sourceR)
source = audio_to_stereo(source)
# Output
output.icecast([...])
Thk
Yoann
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