On Monday 28 April 2014 18:02:51 Wayne Merricks wrote:
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.
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))
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.
#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)
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)
#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
On 2014-04-28 18:45, Rick wrote:
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
drew Roberts schreef op 28-4-2014 19:45:
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
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