Hey Simone
Thanks for the tutorial with stereo_tool, it works fine.
Just one small problem, the metadata gets lost by processing with
stereo_tool. How do I get them back?
Best
Markus
2017-01-04 11:50 GMT+01:00 Simone Dal Maso <[email protected]>:
> 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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