Menu Content/Inhalt
Home arrow Projects arrow BassBoy
BassBoy
Written by Alex   

Now available for purchase via the MikroE  Image

 

BassBoy - hardware mono bass synth, concepted around ATXMEGA mcu and 24bit dac WM8762.
Full midi control : FILTER PRE-GAIN, CUT-OFF, RESONANCE, ENVELOPE MODULATION, DECAY, ACCENT, GAIN, MASTER VOLUME ( without PITCH control ).

Inside mcu:
* 16bit BAND-LIMITED wavetable oscilator (512words) - SAW and SQUARE 16bit DCO - 4 octaves plus C ( 32.70Hz - 523.25Hz)
* 16bit GEN ENVELOPE - dca envelope, dca accent envelope, dcf envelope
* 16bit HPF 6db 2xoversampling
* 16bit MOOG 18db digital implementation filter 2xoversampling
* 16bit DC-OFFSET remover
* 16bit DCA (digital controlled amplifier) with zero cross-detection and GAIN module 1x - 63x amplification (HARD CLIP distortion)
* MIDI module
* Channel selector 1 - 16
* MONO output

 

Image
Block-schematic

MIDI messages:

cc 7  Volume
cc53  Filter Pre-Gain
cc54  Filter cut-off
cc55  Filter resonance
cc56  Envelope modulation
cc57  Envelope decay
cc58  Accent
cc59  Distort Gain
cc60  CUTOFF step
cc123 ALL NOTES OFF

Midi program change

Midi notes from 24 to 72 ( C1 - C5 ) 

 

Image
More serious... Ready for use

 

Image
Mighty 8bit mcu...

Fibra`s photostream (thanks, man!)

Image
 
Last Updated ( Monday, 23 January 2012 )