Update: I got it working, somehow
# use telnet socket
set("server.telnet", true)
set("server.telnet.port", 1234)
set("server.telnet.bind_addr", "127.0.0.1")
radio = audio_to_stereo(sine())
r1 = rms.stereo(radio)
p1 = peak.stereo(radio)
radio = amplify(0.5, radio)
r2 = rms.stereo(radio)
p2 = peak.stereo(radio)
def measure(_) = "#{fst(r1.rms())} #{snd(r1.rms())} #{fst(p1.peak())}
#{snd(p1.peak())} #{fst(r2.rms())} #{snd(r2.rms())} #{fst(p2.peak())}
#{snd(p2.peak())}" end
server.register("measure", measure)
out(radio)
output.dummy(r1)
output.dummy(p1)
output.dummy(r2)
output.dummy(p2)
######
It seems the measure points r1,p2,r2,p3 must be connected to some output.
I did not get it working if I assign the tuples to variables like "rs1 = r1.rms()" or
"(l,r) = r1.rms()" first,
and then try to output the variables like "#{fst(rs1)}" or "#{r}".
So I can access the values only inline like "#{fst(r1.rms())} #{snd(r1.rms())}"
BR, Peter
Am 05.03.23 um 11:00 schrieb peter_re...@gmx.de:
Dear Liquidsoap team,
Up to now we are using rms.stereo and rms.peak with liquidsoap version 1.4.x
to visualize the sound processing of stereo sources.
Now we want to upgrade our system to Ubuntu 22.04.
If any possible we want to the official package repository containing version
2.0.2.
If I use rms.stereo (and later peak.stereo) the way I did with version 1.4.x it
fails:
rs1 = rms.stereo(duration=duration, radio)
with error message
At test.liq, line 13, char 9-12:
r1 = fst(rs1)
Error 5: this value has type
source(_) (inferred at test.liq, line 12, char 6-42)
but it should be a subtype of
_ * _
I tried for some hours and looked for any interfaces changes,
but I do not understand the issue and cannot get it running again.
Have you any idea how I can get it running with version 2.02 again?
The full script looks like
#######################################################################
# use telnet socket
set("server.telnet", true)
set("server.telnet.port", 1234)
set("server.telnet.bind_addr", "127.0.0.1")
radio = audio_to_stereo(sine())
# window for rms and peak
duration = interactive.float("duration", 10.)
# measure input
rs1 = rms.stereo(duration=duration, radio) # <-- failure
r1 = fst(rs1)
radio = snd(rs1)
ps1 = peak.stereo(duration=duration, radio)
p1 = fst(ps1)
radio = snd(ps1)
# apply effect
radio = amp(0.5, radio)
# measure output
rs2 = rms.stereo(duration=duration, radio)
r2 = fst(rs2)
radio = snd(rs2)
ps2 = peak.stereo(duration=duration, radio)
p2 = fst(ps2)
radio = snd(ps2)
def measure(_) = "#{fst(r1())} #{snd(r1())} #{fst(p1())} #{snd(p1())} #{fst(r2())}
#{snd(r2())} #{fst(p2())} #{snd(p2())}" end
server.register("measure", measure)
out(radio)
#######################################################################
Thanks in advance,
Peter
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