Streaming Radio Howto

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

TCPC9, Palazzolo Acreide, Oct 4, 2009

Software to use

Server side:

• Icecast2

Client side:

• MuSE
• Darkice

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:

With OSS (OLD :P 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

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          = hw:0,0      # ALSA soundcard device 
                              #(hw:1,0 in case of the cadaver of pulseaudio in the way)
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 )

 '''screenshots coming''' 

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

 screenshot 

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.

 lalala 

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 )

Hardware

Microphones

Other stuff

Tip'n tricks