Differences between revisions 10 and 31 (spanning 21 versions)

Contents

Streaming Radio Howto
Liquidsoap streaming source
1. TODO
2. Tricks
OLD CONFIGS HERE - Software used
1. Configurations
  1. Server side
    1. Icecast 2
  2. Client side
2. Hardware

Streaming Radio Howto

by Asbesto & Fruity - Dyne.org, Freaknet.org, Radiocybernet.org, Poetry Hacklab

TCPC9, Palazzolo Acreide, Oct 4, 2009

Liquidsoap streaming source

Simply

apt-get install liquidsoap

The program we use is "stream.liq" here:

# Log dir
set("log.file.path","/home/asbesto/radiocybernet/streaming.log")

# local telnet server only, port 1234
set("server.telnet", true)

# Music
myplaylist = playlist("~/radiocybernet/playlist.m3u",reload_mode="watch")

# Some jingles
jingles = playlist("~/radiocybernet/jingles.m3u",reload_mode="watch")

# If something goes wrong, we'll play this
security = single("~/radiocybernet/alfacharlie.mp3")

# Start building the feed with music
radio = myplaylist
# Now add some jingles
radio = random(weights = [1, 4],[jingles, radio])
# And finally the security
radio = fallback(track_sensitive = false, [radio, security])

# Stream it out
output.icecast(%mp3,
  host = "radio.dyne.org", port = 8000,
  password = "bactrim", mount = "rcyb.mp3",
  icy_metadata="true",
  genre = "Live",
  description = "Historical Broadcast live 24/7 - Multilingual - WARNING, can contain STRONG ITALIAN LANGUAGE, MAYBE NSFW ",
  name = "Radio Cybernet - Online since 1997",
  url = "http://www.radiocybernet.org",
  audio_to_stereo(radio))

Main playlist is there, you also have jingles and the security mp3 if something fail. random weights control jingles.

audio_to_stereo reencode weird mp3 formats on the fly so everything work smooth!

Just add a list of MP3 somewhere, create a playlist, and that's all!

TELNET server (local only) is useful but kinda tricky.

TODO

add automatic live insertion to the playlist above
... check random playing (now is random) or sequential playing...

Tricks

Liquidsoap use MP3 id tag as titles etc. - If mp3 doesn't have tags, nothing will be display. So you MUST describe any mp3 in id tags. We used eye3D tool for that - very useful: eye3D -t title mp3.

REALAUDIO FILES to mp3 - must be converted. ffmpeg does this. GOOGLE THAT

TO BE EXPANDED

OLD CONFIGS HERE - Software used

Server side:

Icecast2

Client side:

Configurations

Server side

Icecast 2

This is only the mountpoint configuration.

<!-- asbesto, radiocybernet -->

<mount>
        <mount-name>/rcyb.mp3</mount-name>

# NOTE: the INTRO path is relative to the icecast2 web interface!!!
            <intro>radiocybernet/intro.mp3</intro>

            <max-listeners>1000</max-listeners>
            <fallback-mount>/radiocybernet-oldies.mp3</fallback-mount>
            <fallback-override>1</fallback-override>
            <fallback-when-full>1</fallback-when-full>
</mount>
                                
# FALLBACK STREAM: old recordings or ambient sounds: sea, trees, forests...
<mount>
        <mount-name>/radiocybernet-oldies.mp3</mount-name>
        <max-listeners>1000</max-listeners>
        <hidden>0</hidden>
</mount>

Client side

VLC

(to be added)

MuSE

Command line streaming tool "Strimma" by Asbesto

echo "strimma v0.1 (c) 2002 Gabriele Zaverio (asbesto@freaknet.org)"
muse -e mp3 -o -C -b 16 -q 4 -i \
     -f rcyb-`date +%d%b%Y-%H%M%S`.mp3 \
        -s radio.dyne.org:8000 -m rcyb.mp3 -U source -p revolution \
        -n radiocybernet_LIVE_NOW

#        -s indivia.net:8000 -m rcyb -p xxxxxx \
#        -n radiocybernet_HACKIT2005_NAPOLI \
# questo per strimmare su 2 server contemporaneamente analmente hackit03

(work in progress)

Darkice config file

This is the config file for darkice under Linux, to stream on radio.dyne.org, use darkice as darkice -c darkice.cfg where darkice.cfg is the configuration file:

With OSS (OLD :-? Open Sound System)

Control permissions and existance of /dev/dsp dsp1 dsp2, dependently from how many audio cards you have. Tri gom or aumix to control the mixer settings.

# sample DarkIce configuration file, edit for your needs before using
# see the darkice.cfg man page for details

# this section describes general aspects of the live streaming session
[general]
duration        = 0        # duration of encoding, in seconds. 0 means forever
bufferSecs      = 5         # size of internal slip buffer, in seconds
reconnect       = yes       # reconnect to the server(s) if disconnected

# this section describes the audio input that will be streamed
[input]
device          = /dev/dsp  # OSS DSP soundcard device for the audio input
sampleRate      = 22050     # sample rate in Hz. try 11025, 22050 or 44100
bitsPerSample   = 16        # bits per sample. try 16
channel         = 1         # channels. 1 = mono, 2 = stereo

# this section describes a streaming connection to an IceCast2 server
# there may be up to 8 of these sections, named [icecast2-0] ... [icecast2-7]
# these can be mixed with [icecast-x] and [shoutcast-x] sections
[icecast2-0]
bitrateMode     = cbr       # avr=average bit rate
format          = mp3 #vorbis    # format of the stream: ogg vorbis
bitrate         = 32        # bitrate of the stream sent to the server
server          = radio.dyne.org
                            # host name of the server
port            = 8000      # port of the IceCast2 server, usually 8000
password        = revolution    # source password to the IceCast2 server
mountPoint      = rcyb.mp3  # mount point of this stream on the IceCast2 server
name            = Radio Cybernet
                            # name of the stream
description     = Test from tcpc9
                            # description of the stream
url             = http://www.radiocybernet.org
                            # URL related to the stream
genre           = live    # genre of the stream
public          = yes       # advertise this stream?
localDumpFile   = rcyb.mp3
fileAddDate     = yes

With ALSA

Control that there is an audio card with aplay -l and always control that you are part of group audio ( or be root )

NOTE
{i}{X}X-({X}{i}
On ubuntu ( and on debian to be tried ) pulseaudio take over hw:0,0 so your audiocard will be hw:1,0 (blarg...). There must be a more gently way of killing pulseaudio and clearing this naming issue... to be investigated :)

# sample DarkIce configuration file, edit for your needs before using
# see the darkice.cfg man page for details

# this section describes general aspects of the live streaming session
[general]
duration        = 0        # duration of encoding, in seconds. 0 means forever
bufferSecs      = 5         # size of internal slip buffer, in seconds
reconnect       = yes       # reconnect to the server(s) if disconnected

# this section describes the audio input that will be streamed
[input]
device          = default # hw:0,0 # ALSA soundcard device 
                          #(hw:1,0 in case of the cadaver of pulseaudio in the way)
                          # DEFAULT works!

sampleRate      = 22050     # sample rate in Hz. try 11025, 22050 or 44100
bitsPerSample   = 16        # bits per sample. try 16
channel         = 1         # channels. 1 = mono, 2 = stereo

# mp3
[icecast2-0]
bitrateMode     = cbr       # avr=average bit rate
format          = mp3      # format of the stream: ogg vorbis
bitrate         = 32        # bitrate of the stream sent to the server
server          = radio.dyne.org
                            # host name of the server
port            = 8000      # port of the IceCast2 server, usually 8000
password        = revolution    # source password to the IceCast2 server
mountPoint      = rcyb.mp3  # mount point of this stream on the IceCast2 server
name            = Radio Cybernet
                            # name of the stream
description     = Test from tcpc9

                            # description of the stream
url             = http://www.radiocybernet.org
                            # URL related to the stream
genre           = live    # genre of the stream
public          = yes       # advertise this stream?
localDumpFile   = rcyb.mp3  # backup locally
fileAddDate     = yes       # add date to filename

# ogg
[icecast2-1] 
# Note is icecast2 sezione di configurazione numero 1
bitrateMode     = cbr       # avr=average bit rate
format          = vorbis    # format of the stream: ogg vorbis mp3
bitrate         = 32        # bitrate of the stream sent to the server
server          = radio.dyne.org
                            # host name of the server
port            = 8000      # port of the IceCast2 server, usually 8000
password        = revolution    # source password to the IceCast2 server
mountPoint      = rcyb.ogg  # mount point of this stream on the IceCast2 server
name            = Radio Cybernet
                            # name of the stream
description     = Test from tcpc9
                            # description of the stream
url             = http://www.radiocybernet.org
                            # URL related to the stream
genre           = live    # genre of the stream
public          = yes       # advertise this stream?
localDumpFile   = rcyb.ogg
fileAddDate     = yes

Control the mixer with alsamixer ( alsamixer -c1 in case of pulseaudio cadaver )

In alsamixer press the [tab] button on your keyboard to go to the input capture view:

Don't put the capture volume at max or you will get poor quality audio, if your terminal supports colors keep it under the red bar :), in amixergui or thing like that keep the capture volume 2/3 of the max volume.

With the arrows you can cross the input channels, put the capture on the -mix- by pressing the space bar and then set the volumes of the outputs ( again [tab] to switch back to the outputs volumes views) as you wish.

If you plan to use a player like mplayer or audacious or xmms remember to set them to use Master as volume and not PCM otherwise with the music you will take down also mikes line-in cd and what-sallamadonna-not , best to set them on software volume control ( -softvol for mplayer )