svlentink/SBC-midi

Connect your MIDI keyboard to your Single Board Computer for some sound.

SBC-midi

Connect your MIDI keyboard to your Single Board Computer for some sound.

Description

This script will allow your unix machine (e.g. Single Board Computer) to output a piano sound when you play your MIDI keyboard. It is written for my 'M-Audio USB MIDI Keyboard' and a CHIP (getchip.com). You should be able to use it with other USB MIDI instruments and computers. Before we begin, make sure you have your midi keyboard and speakers/headphones plugged in.

Installation

Open a tty/ssh session on your device, for a serial console, you may try: (which will connect to the last connected USB device, did you just plug it in 5sec ago?)

screen $(ls -tr /dev/tty*|grep -i usb|tail -1) 115200

If your device has WIFI, and you want to connect to it:

nmcli dev wifi list
nmcli dev wifi connect YOUR_WIFI_SSID password WIFI_PASSWORD

or do it via /etc/network/interfaces

Now that we have internet connection, a MIDI input device connected and headphones/speakers, just run:

curl -sSL https://raw.githubusercontent.com/svlentink/SBC-midi/master/install.sh | sudo sh

Links

The following can be used for debugging or further development:

• Introduction: https://rafalcieslak.wordpress.com/2012/08/29/usb-midi-controllers-and-making-music-with-ubuntu/
• Technical: http://tedfelix.com/linux/linux-midi.html
• Quickstart: http://sandsoftwaresound.net/qsynth-fluidsynth-raspberry-pi/

Other links:

• https://github.com/zynthian
• https://www.hackster.io/11802/c-h-i-p-midi-arpeggiating-synth-e311ab
• https://docs.getchip.com/chip.html#headless-chip
• https://docs.getchip.com/chip.html#control-chip-using-a-serial-terminal
• https://supercollider.github.io/
• http://sonic-pi.net/
• karplus strong algorithm
• overtone.github.io
• JaMISS
• http://www.florisdriessen.nl/electronics/raspberry-pi-electronics/keyboard-piano-on-the-raspberry-pi-with-fluidsynth/
• https://www.raspberrypi.org/blog/pi-synthesisers/
• https://stimresp.wordpress.com/2016/02/08/using-a-raspberry-pi-as-usb-midi-host/
• https://rafalcieslak.wordpress.com/2012/08/29/usb-midi-controllers-and-making-music-with-ubuntu/

Current progress

This script installs a cronjob that runs every minute, to verify all conditions.

It should establish the following after about 2.5 minutes after booting (after the installation):

root@chip:/home/chip# aconnect -l | tail -6
client 20: 'USB Keystation 49e' [type=kernel]
    0 'USB Keystation 49e MIDI 1'
        Connecting To: 128:0
client 128: 'FLUID Synth (667)' [type=user]
    0 'Synth input port (667:0)'
        Connected From: 20:0