Great to see Stereotool works with liquidsoap like this too. Me
personaly I would prefer alsa above pulse, better full digital
processing through Jack, but you should post this on Stereotools forum,
more then one will be interested in using ST with liquidsoap like this
On 04-Jan-17 11:50, Simone Dal Maso wrote:
> Hello,
> Finally I decided to follow the stereo_tool solution.
> I put here the code snippet, also if you can find it on the web in some
> forum.
>
> So:
> The concept is using stereo_tool that process the sound and really give
> a super sound!
> Now I can see that my webradio has a professional audio.
> Use stereo_tool command line version, I'm using version 800 because from
> 812 I have error with c++ libraries. It seems Debian Jessie is too old
> for version 814...
>
> You should download a setting preset from the stereotool forum section.
> It's really easy and there is a good choice.
>
> Then create 2 files:
>
> mkfifo /tmp/audioin.pcm
> mkfifo /tmp/audioout.pcm
>
> There are the files that must be read and write by liquidsoap and
> stereotool.
> The stereotool side is really easy, you can give a simple:
> ./stereo_tool_cmd_64_800 /tmp/audioin.pcm /tmp/audioout.pcm -s
> ./mySettings.sts &
>
> The liquidsoap section instead:
>
>
> I have a "radio" object that contain all playlists and scheduling
> options. So we must generate a wav file that will be read by stereotool,
> and then take the output file and stream by icecast. The piece of code
> is follow:
>
> output.file(%wav(stereo=true, channels=2, samplesize=16, header=true,
> duration=1.),
> "/tmp/audioin.pcm",
> radio
> )
>
> # put all stream in the s object using the dd command
> s = mksafe(input.external("dd if=/tmp/audioout.pcm 2>/dev/null"))
>
> #enable icecast streaming passing the S object
> output.icecast(%mp3(
> samplerate=44100,
> stereo=true,
> bitrate=128),
> mount="/stream",
> name="NvRadio",
> host="127.0.0.1",
> port=8000,
> password="CipCipCipCipCipCipCip",
> genre="70's, 80's, 90's, easy listening, oldies, top 40/pop",
> url="http://www.nvapple.it/";,
> icy_metadata="true",description = "radio a tema accessibilita' !!",
> public=true,s)
>
>
> Remember, start liquidsoap before, you will hear a silent streaming,
> then start stereo_tool and the magic sound will appear.
>
> I think it is useful to check with monit or similar the stereo_tool
> process, because if it dies for some reason, you lost the streaming.
> So at least it is a good idea to implement a script that notify you by
> email, put down liquidsoap and start the emergency streaming of icecast.
>
> On some circumstance you should kill also the "dd" process, but in my
> server it was not necessary.
>
>
>
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