[RDD] OT: darkice and liquidsoap configs

Discussion:

drew Roberts

2014-04-28 17:45:29 UTC

I know some of you folks know more than I do about liquidsoap. Perhaps someone
can help. Anyone know how to match this darkice setup in liquidsoap:

[icecast2-0]
bitrateMode = cbr # constant bit rate
format = mp3 # format of the stream: mp3
bitrate = 32 # bitrate of the stream sent to the server
sampleRate = 22050
channel = 1
server = localhost
# host name of the server
port = 8014 # port of the IceCast2 server, usually 8000

all the best,

drew

Rick

2014-04-28 17:45:57 UTC

Permalink

interesting subject #finaly will work on this also next week and try

https://www.google.nl/#q=liquidsoap+site:http:%2F%2Fcaspian.paravelsystems.com%2Fpipermail%2Frivendell-dev%2F

Post by drew Roberts
I know some of you folks know more than I do about liquidsoap. Perhaps someone
[icecast2-0]
bitrateMode = cbr # constant bit rate
format = mp3 # format of the stream: mp3
bitrate = 32 # bitrate of the stream sent to the server
sampleRate = 22050
channel = 1
server = localhost
# host name of the server
port = 8014 # port of the IceCast2 server, usually 8000
all the best,
drew
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Wayne Merricks

2014-04-28 22:02:51 UTC

Permalink

Easier than you think.

pastebin.com/u/MezzFA0

In there is a full guide for JACK, Rotter and Liquidsoap all with
startup scripts on Ubuntu

or just this link for the liquid soap config:

http://pastebin.com/ziNEKF03

But the only things you need to do are:

#Get an input stream (darkice auto grabs from line in if I remember
rightly so I'm assuming ALSA in):
liveStream = (input.alsa(id="liquidsoap"):source(1,0,0))

#id can be anything you want, source(1,0,0) is 1 audio, 0 video and 0
something else I've forgotten so this would be mono
#You might have to take the stereo stream with source(2,0,0) and then
mono it with:
#liveStereo = (input.alsa(id="liquidsoap"):source(2,0,0))
#liveMono = mean(liveStereo)

#Here do any processing to the stream you want, you could silence
detect:
emergencyFile = mksafe(single("/var/audio/emergency/silentalarm.mp3"))
#you need to obviously make and put a silentalarm.mp3 in that location
or somewhere else accessible
# Silence Detection, plays after 30 seconds of silence
liveStream = strip_blank(liveStream, length=30.0)

#Tell it what to do when its silent (track_sensitive=true will wait for
the track to end before cutting back to the main stream):
liveStream = fallback(track_sensitive=false, [liveStream,
emergencyFile])

#You could have a tracklist instead of an emergency file, you can even
have a ruled tracklist that will play idents on the hour, pick random
songs from directories etc but I've never attempted that

#Or how about compression:
liveStream = compress(ratio=3.0, attack=38.0, release=85.0,
threshold=-20.0, knee=0.5, gain=8.0, liveStream)

#What if you need a limiter:
liveStream = limit(ratio=3.0, attack=38.0, release=85.0,
threshold=-3.0,knee=0.5, liveStream)

#Finally send it off to icecast
output.icecast(%mp3(stereo=false, samplerate=22050,
bitrate=32),liveStream, description="Describe me", genre="Give me a
genre", url="My Website", name="Title Me", mount="what mount point to
use", host="localhost", password="my secret password", port=8014)

Theres tons of sound processing you can do. You can even automate an
entire DJ free station by setting up schedule rules and other stuff.
The full API is here:
http://savonet.sourceforge.net/doc-svn/reference.html

But it is a bit cryptic, I still sit there smashing my face on the wall
when it should work but just doesn't.

Oh you'll need to save this config in a file convention is blah.liq
then you can run liquidsoap /path/to/config/blah.liq

You can also run liquidsoap -c /path/to/config/blah.liq to get it to
check your config and spew out any errors.

Regards,

Wayne

Post by Rick
interesting subject #finaly will work on this also next week and try
https://www.google.nl/#q=liquidsoap+site:http:%2F%2Fcaspian.paravelsystems.com%2Fpipermail%2Frivendell-dev%2F

_______________________________________________
Rivendell-dev mailing list
http://caspian.paravelsystems.com/mailman/listinfo/rivendell-dev

David Klann

2014-04-29 03:44:25 UTC

Permalink

Wayne,

This is an amazing set of liquidsoap/jack/rotter stuff. I wasn't aware
of the rotter utility, I simply have a separate output "clause" for
archives in the liquidsoap script. I'm going to look into using JACK for
input/output for monitoring the stream more easily.

I've recently discovered the magic of "clocks" in liquidsoap. The way I
understand them is that they enable multiple outputs that are timed
independently of each other. In our example (see below) I'm sending the
output to 1) our Internet stream, 2) a local instance of Icecast, and 3)
an hourly-rotating archive file. I noticed in the past that the
reliability of the internet connection would affect the other streams. I
believe using clocks has fixed this situation.

I've pasted my "stream encoder" script for another liquidsoap example at
http://pastebin.com/sRVDC6SP (the last clause in the script is the
hourly rotation to the local archive).

Cheers,

~David Klann

Post by Wayne Merricks
Easier than you think.
pastebin.com/u/MezzFA0
In there is a full guide for JACK, Rotter and Liquidsoap all with

startup scripts on Ubuntu

Post by Wayne Merricks
http://pastebin.com/ziNEKF03
#Get an input stream (darkice auto grabs from line in if I remember
liveStream = (input.alsa(id="liquidsoap"):source(1,0,0))
#id can be anything you want, source(1,0,0) is 1 audio, 0 video and 0

something else I've forgotten so this would be mono

Post by Wayne Merricks
#You might have to take the stereo stream with source(2,0,0) and then
#liveStereo = (input.alsa(id="liquidsoap"):source(2,0,0))
#liveMono = mean(liveStereo)
emergencyFile = mksafe(single("/var/audio/emergency/silentalarm.mp3"))
#you need to obviously make and put a silentalarm.mp3 in that location

or somewhere else accessible

Post by Wayne Merricks
# Silence Detection, plays after 30 seconds of silence
liveStream = strip_blank(liveStream, length=30.0)
#Tell it what to do when its silent (track_sensitive=true will wait
liveStream = fallback(track_sensitive=false, [liveStream, emergencyFile])
#You could have a tracklist instead of an emergency file, you can even

have a ruled tracklist that will play idents on the hour, pick random
songs from directories etc but I've never attempted that

Post by Wayne Merricks
liveStream = compress(ratio=3.0, attack=38.0, release=85.0,

threshold=-20.0, knee=0.5, gain=8.0, liveStream)

Post by Wayne Merricks
liveStream = limit(ratio=3.0, attack=38.0, release=85.0,

threshold=-3.0,knee=0.5, liveStream)

Post by Wayne Merricks
#Finally send it off to icecast
output.icecast(%mp3(stereo=false, samplerate=22050,

bitrate=32),liveStream, description="Describe me", genre="Give me a
genre", url="My Website", name="Title Me", mount="what mount point to
use", host="localhost", password="my secret password", port=8014)

Post by Wayne Merricks
Theres tons of sound processing you can do. You can even automate an

entire DJ free station by setting up schedule rules and other stuff.

Post by Wayne Merricks
http://savonet.sourceforge.net/doc-svn/reference.html
But it is a bit cryptic, I still sit there smashing my face on the

wall when it should work but just doesn't.

Post by Wayne Merricks
Oh you'll need to save this config in a file convention is blah.liq

then you can run liquidsoap /path/to/config/blah.liq

Post by Wayne Merricks
You can also run liquidsoap -c /path/to/config/blah.liq to get it to

check your config and spew out any errors.

Post by Wayne Merricks
Regards,
Wayne

Post by Rick
interesting subject #finaly will work on this also next week and try

https://www.google.nl/#q=liquidsoap+site:http:%2F%2Fcaspian.paravelsystems.com%2Fpipermail%2Frivendell-dev%2F

Post by Wayne Merricks

Post by Rick

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drew Roberts

2014-04-29 17:17:10 UTC

Permalink

Post by Wayne Merricks
Easier than you think.
pastebin.com/u/MezzFA0
In there is a full guide for JACK, Rotter and Liquidsoap all with
startup scripts on Ubuntu

Thanks, I will be looking at that closely and deciding if I need to switch
over to the way you are doing things or adapt what you are doing to the way I
am doing things on this new box.

Currently I am autologging in a user and running stuff from the
~/.config/autostart directory. With qjackctl running some things on start and
other things running in a screen setup that is also started in that whole
chain.

Post by Wayne Merricks
http://pastebin.com/ziNEKF03
#Get an input stream (darkice auto grabs from line in if I remember
liveStream = (input.alsa(id="liquidsoap"):source(1,0,0))

Actually, iirc, darkice can do jack as well. The box I am moving from was alsa
based but the one it replaced was jack based. I moved to alsa years ago when
I needed to run two station streams on one box and could not figure out how
to make rotter log two stations on one box. I ended up using darkice to do
the logging but never liked it as much as the rotter way.

Post by Wayne Merricks
#id can be anything you want, source(1,0,0) is 1 audio, 0 video and 0
something else I've forgotten so this would be mono
#You might have to take the stereo stream with source(2,0,0) and then
#liveStereo = (input.alsa(id="liquidsoap"):source(2,0,0))
#liveMono = mean(liveStereo)

This is what I am doing now as a test on the new box:

#!/usr/bin/liquidsoap

#message =
# "The Savonet team thanks you for using liquidsoap, " ^
# "and we hope you'll enjoy it!"

#set("jack.client_name","liquidsoap")
set("log.file.path","/home/zloc/basic-radio.log")

# We're 48k!
set("frame.audio.samplerate",48000)
# Grab JACK input
# We don't do any fallback here; hardware silence detector is used to flip to
a backup Rivendell system
radio = mksafe(input.jack(id="liquidsoap"))

output.icecast(%mp3(bitrate=128), host="localhost", port=8002,
password="nopass",
mount="zotz1.mp3", genre="Rockin", url="http://192.168.1.4:8002",
name="Rockin Rivendell 4", description="Rockin Rivendell 4",
format="mp3", icy_metadata="true", radio)

Post by Wayne Merricks
#Here do any processing to the stream you want, you could silence
emergencyFile = mksafe(single("/var/audio/emergency/silentalarm.mp3"))
#you need to obviously make and put a silentalarm.mp3 in that location
or somewhere else accessible
# Silence Detection, plays after 30 seconds of silence
liveStream = strip_blank(liveStream, length=30.0)
#Tell it what to do when its silent (track_sensitive=true will wait for
liveStream = fallback(track_sensitive=false, [liveStream,
emergencyFile])
#You could have a tracklist instead of an emergency file, you can even
have a ruled tracklist that will play idents on the hour, pick random
songs from directories etc but I've never attempted that
liveStream = compress(ratio=3.0, attack=38.0, release=85.0,
threshold=-20.0, knee=0.5, gain=8.0, liveStream)
liveStream = limit(ratio=3.0, attack=38.0, release=85.0,
threshold=-3.0,knee=0.5, liveStream)
#Finally send it off to icecast
output.icecast(%mp3(stereo=false, samplerate=22050,
bitrate=32),liveStream, description="Describe me", genre="Give me a
genre", url="My Website", name="Title Me", mount="what mount point to
use", host="localhost", password="my secret password", port=8014)
Theres tons of sound processing you can do. You can even automate an
entire DJ free station by setting up schedule rules and other stuff.
http://savonet.sourceforge.net/doc-svn/reference.html
But it is a bit cryptic, I still sit there smashing my face on the wall
when it should work but just doesn't.
Oh you'll need to save this config in a file convention is blah.liq
then you can run liquidsoap /path/to/config/blah.liq
You can also run liquidsoap -c /path/to/config/blah.liq to get it to
check your config and spew out any errors.
Regards,
Wayne

Post by Rick
interesting subject #finaly will work on this also next week and try
https://www.google.nl/#q=liquidsoap+site:http:%2F%2Fcaspian.paravelsystem
s.com%2Fpipermail%2Frivendell-dev%2F

_______________________________________________
Rivendell-dev mailing list
http://caspian.paravelsystems.com/mailman/listinfo/rivendell-dev

--
This is drew's personal email account and is not related to Tribune Radio Ltd.

Wayne Merricks

2014-04-29 17:18:37 UTC

Permalink

Hi,

Just a quick FYI, it looks like you have host and url the wrong way
around in your output.icecast line.

url is usually a link to your website thats put in the stream metadata.

Regards,

Wayne Merricks
The Voice Asia