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 > >
