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René Ceballos shared this short demo of XFM – a polyphonic, 32-voice, 6-operator FM synthesizer stereo module that you can build your self.
The module receives MIDI messages from a controller/sequencer, produces audio and offers it by way of digital (SPDIF) and analog outputs. The sound latitude XFM can create and its function set have a very broad intersection with most pure-FM synthesizers of the previous (Yamaha DX series, OPL chip series, TX81Z/802/816 modules, etc.).
XFM Synthesizer aspects:
32-voice polyphonic
Polyphonic or Monophonic Legato modes
6 operators per voice
Variable modulation algorithm
eight waveforms per operator
A 6-section Envelope Generator for each operator
6-section Pitch Envelope Generator
Per-voice LFO with Triangle, square, Sine, S&H waveform
Per-operator adjustable LFO sensitivity for pitch and volume
Per-operator adjustable speed monitoring, keyboard monitoring
Monophonic/Polyphonic portamento
huge MIDI implementation (pitch bend, mod wheel, aftertouch, preserve, breath ctl, foot ctl, quantity, pan, etc.)
Auto-panner
Stereo chorus
256 programs reminiscence
MIDI in, thru
48kHz samplerate
Samplerate-grade modulations
Stereo, 24-bit SPDIF digital out
Stereo, sixteen-bit analog out
Battery friendly, low power operation
utterly programmable (connecting it to a pc by the use of USB)
extremely low latency (< 1ms)
See the futur3soundz web site for details on the project.