Preparation

On ubuntu install

• qjackctl (Controlling jack)
• qsynth (software synthesize with fluid-synth as backend)
• rosegarden (MIDI sequencer program)

compiling 'vocoder'

For compiling 'vocoder' install

• gcc compile environment
• fluid (for compiling widgets)
• libjack-dev or libjackd2-dev
• libsndfile1-dev

• download vocoder
• tar xvzf vocoder-jack-0.29.tar.gz
• cd vocoder
• make

Setup and run

• connect a microphone
• click 'setup' on qjackctl to setup correct input and output audio devices
• run rosegarden
• run qsynth
• setup rosegarden to play midi files on qsynth
• after testing disconnect qsynth output from system input
• run vocoder
• connect vocoder output to system input
• connect a qsynth output to vocoder 'carrier' input
• connect a system capture output to vocoder 'formant' input
• start midi file on rosegarden and speak into mike