I don't understand this behaviour:
When I send a sysex message to midiout, midiin (and sysexin) receive it.
- also when nothing is connected to the midi-interface
Also when I send something to noteout it comes back from midiin and notein.
Can I remove the midi-feedback-loop in my alsa configuration?
I had a cheap noname usb-midi interface (oss-driver), which did not do that.
This interface was not reliable for sysex-messages so I replaced it by a m-audio midisport uno. It works great, it receives and transmits long sysex-messages without errors.( alsa-midi driver)
But in pd the outgoing messages get to the midin also.
I tried sending a string with amidi instead (ping to my synth):
amidi --port=hw:2,0,0 --send-hex="f0 00 00 7e 4b 00 0f f7" --dump
amidi shows no repeating output on the input (only pong from synth), so it must be something related to pd (or alsa-midi routing?).
raspbian wheezy, pd-extended
Can I change this somehow? Is there an oss-driver for midisport uno?
Cleaning up the received data is stupid work and I hope unnecessary...