Derek Enos’ deMIDulator is an interesting DIY MIDI-controlled 8-bit digital synthesizer & lo-fi audio sampler. The video demonstrates the deMIDulator’s synth and sample capabilities.
Features:
- Simple interface
- Sine, Square and audio Sample playback waveforms
- Audio input switchable between on-board Mic and headset jack
- Up to 4 seconds of recorded audio @ 8bit x 3.937kHz
- Switchable mono / 4-note polyphony for all waveforms
- Pitch Wheel (glitch) support
- Sustain support
- Program Change support for switching waveform modes
- All MIDI notes implemented
- Volume and Output Filter Cutoff controls
- Powerful 150mW headphone amplifier can drive headphones or external speaker
- 4-conductor audio jack for use with iPhone compatible headsets (earbuds w/mic)
- Powered by 3 x AAA batteries, DC power jack or ICSP header
- Final firmware written completely in Assembly
- ICSP header for reprogramming PIC
- PCB includes unpopulated MIDI output jack for fun
See the derekenos site for details.
