Subject: Re: [linux-audio-user] Generating drones, take 2
From: mawali_AT_news.icns.com
Date: Wed Sep 10 2003 - 02:15:55 EEST
Thanks gentlemen, this thread has surele generated some very informative
responses, I think I have a very good starting point.
Thank again!
On Tue, 9 Sep 2003, Pedro Lopez-Cabanillas wrote:
> > According to the responses to my previous post. There does not seem to be
> > a way in linux to send MIDI command from my shell to a MIDI output
> > interface.
>
> You can generate a note-on event from bash, with something like this:
> echo -n $'\x90\x45\x70' > /dev/midi01
>
> The above command plays the A note on "/dev/midi01"
> x90 is the MIDI note-on status byte
> x45 = decimal 69 = A (440 Hz).
> x70 is the note velocity
>
> If you want to stop the sound, use:
> echo -n $'\x80\x45\x70' > /dev/midi01
> where x80 is the note-off status byte.
>
> > For reference I want to be able to generate drone tones on my MIDI. I am
> > looking for a simple application (MIDI shell??) that would let me turn a
> > particular note on. I already have a sound card with the wavetable, this
> > sound card understands midi. Alsa is supposed to have a good midi api, so
> > how so I insert a midi event into my souncards midi output interface!!
> > FT
>
> You need to discover which /dev/midiXX is your soundcard wavetable synth.
> If you prefer to use ALSA rawmidi devices, replace /dev/midiXX with
> /dev/snd/midiCxDy, where "x" is the card number and "y" is a device number
> belonging to this card.
>
> Regards,
> Pedro
>
>
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