[linux-audio-user] Generating drones, take 2

[mawali at news.icns.com]

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
> 
>