HoerspielPi demo 1

[NOTE: This video will be replaced by a better one soon.]

This video is intended to show the current state of my project 'HoerspielPi' (means 'RadioplayPi').

http://wiki.fablab-bayreuth.de/projekte:hoerspielpi

I would like to use it one day to make a neat live radioplay, where ambient noise is made by overdubbing loops.

*I have not practised playing piano for quite a while, please excuse my horrible touch in this video.*

Software:

* headless Raspbian

* jack2

* sooperlooper engine http://essej.net/sooperlooper/

* sooperloooper GUI python script, to display on 8x8 led matrix (written by me)

* a mididings script, to split the midi messages piano into ranges

* a script to listen for a very long keypress, to launch a midi learner mode (written by me)

* an python script, to emulate CC messages, by in-/decrementing the value with piano key presses (this is used for the record threshold at the moment) (written by me)

* a python script to put an interrupt, to shutdown when the button is pressed

* a script which displays simple splash animations on boot and shutdown

The whole thing is set up as a (crude, but works for me) debian package, which will install all the systemd services, a make hoerspielpi the default target, give jackd the appropriate dbus rights, enable SPI, make some performance settings, put a default midi binding, etc.

hardware:

* Raspberry Pi 3 B

* a 8x8 matrix of red leds, with max7219 driver, connected via SPI

* a button (broken out of an old PC), connected between Pin 5 and GND, to allow switching the Pi on and off properly.

* a cheap USB soundcard

* a simple mixer, to feed mics or instruments into the soundcard which has just 1 line input

* an electronic piano, connected via USB-MIDI to the Pi.

at the moment it lacks:

* visualisation of many sooperlooper settings, like the whole sync machinery

* control of the sync machinery