Hi,
Am 15.12.2011 16:40, schrieb Samuel Mimram:
> Hi,
>
> This is great news to hear that somebody is finally trying to use MIDI
> in Liquidsoap! The example is not correct anymore because typing is
> more strict in newer version of Lqiuidsoap (I should update the
> doc...). The error you get
>
>> At line 6, char 42:
>> this value has type
>> source(,midi=1+_,...) (infered at line 5, char 18-20)
>> but it should be a subtype of
>> source(,midi=0,...)
> means that out.icecast wants a source with only audio (and no MIDI)
> whereas your source obviously has a MIDI channel. The solution is
> simply to drop the MIDI channel by inserting
>
>> !#/usr/local/bin/liquidsoap
>> s = single("/music/music.mid")
>> s = midi.remove([9],s)
>> s = mux_audio(audio=blank(),s)
>> s = synth.all.saw(s)
> s = drop_midi(s)
>
>> out.icecast(%mp3,blah blah blah,s)
> and it should work :)
I should have quessed that the midi-channel was still there and
disturbing the output..
Thanks!
But there's now another error: the script starts, but ends shortly and
in the log i get
2011/12/15 21:34:20 [clock.wallclock_main:3] Streaming loop starts,
synchronized with wallclock.
2011/12/15 21:34:20 [clock.wallclock_main:2] Source midi failed while
streaming: Invalid_argument("index out of bounds")
do i need something specialv like ladspa oder dssi compiled into LS to
play midi-files?
>> As i get this, mux_audio adds a blank audiochannel source(audio=1+,)
>> to the source.
>> and then synth.all.saw modulates this audio channel according
>> to the notes in the midi-channel.
> Yes, this is exactly the right scenario.
At least i got that right! ;-)
> Out of curiosity, do you have any specific application in mind? I have
> big plans for audio synthesis in Liquidsoap but never really got
> motivated enough to implement them because nobody seemed to care...
> So, don't hesitate to ask if you are missing some things...
No, at the moment there's not really a project. IAt this momnet i'm just
exploring the endless possibilities
of this fine software by extending what begun as a media player replcaement.
Now 'it's a nearly complete automated station ( i even made a ugly bash
script to generate MP3 from
RSS newsfeeds ) so LS can play them out as "news".)
In the long term i might add a "midi-jingle" every hour as a simple
clock to my private stream.
Like a old clock: 1 "dong" at 1 o'clock and so on, just brvore the "news"
I'm sure this can be done with LS..! :-)
The only thing that i couldn't programm into LS to date is to make it do
a real hot, fresh coffee..! :-)
> Cheers,
>
> Samuel.
>
Thank you
-- Tom
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