the disting mk4 was introduced at the namm show in january 2017. the main differences compared to the disting mk3 are:
dot matrix screen, capable of showing text and numeric values
micro sd card slot accessible on the front panel
compatibility with the select bus protocol
an internal precision clock allowing new algorithms such as a tuner, and pitch and frequency references
midi in/out ports (on a breakout header)
the disting is a many-in-1 multifunction module, offering a variety of cv and audio processes, including a selection of oscillators (lfos/vcos). all algorithms have two high-precision inputs and outputs, and
a third control input, exposed on a front panel knob and a cv input.
the disting is also a sample (wav) file and midi file player, with a variety of options for sample triggering, playback speed etc.
there are currently 63 distinct algorithms. the first 16 ('classic disting') are:
precision adder with integer voltage offsets
four quadrant multiplier with integer multiply/divide
full-wave rectifier
minimum/maximum
linear/exponential converter
quantizer with selectable scales
comparator with adjustable hysteresis
dual waveshaper wavefolder and triangle-to-sine shaper
sample and hold with noise source and adjustable slew rate
slew rate limiter with linear and exponential slew
pitch and envelope tracker
clockable delay/echo
lfo with through zero frequency control and waveshaping
clockable lfo with multiply/divide and waveshaping
vco with linear fm sine and saw outputs
vco with waveshaping saw/triangle and pulse outputs
the remaining algorithms are:
precision adder with fractional voltage offsets
voltage controlled delay line vibrato/chorus/flange effects
clockable ping pong delay
clockable ping pong delay with input pan control
resonator for drum synthesis
vocoder 12 band
phaser up to 10 stages
bit crusher
tape delay with voltage controlled tape speed
state variable filter smoothly variable filter type
lp/hp filter
lp/bp filter
bp/hp filter
bp/notch filter
ar envelope
ar envelope (with push)
ar envelope & vca
ar envelope & vca (with push)
dual ar envelope
dual ar envelope (with push)
euro to buchla converter
buchla to euro converter
clockable ad envelope (with mute)
clockable ad envelope (with gate)
clockable ad envelope (with trigger)
clockable ad envelope & vca
shift register random cvs
shift register random quantized cvs
shift register random triggers
shift register random dual triggers
es-1 emulation
es-2 emulation
pitch reference
frequency reference
tuner
midi clock
midi/cv
cv/midi
crossfade/pan
the functions relating to playing back audio and midi files from the microsd card are:
audio playback
clocked audio playback
audio playback with v/oct
audio playback with z speed
midi file playback (clocked)
midi file playback (free running)
audio playback with end cv
audio recorder
wavetable vco
specifications:
panel width: 4hp
module depth: 42mm
x & y inputs, a & b outputs
sample rate: 75khz
adc: 24 bit, thd+n -93db, dynamic range 99db, snr 99db
dac: 24 bit, thd+n -94db, dynamic range 105db, snr 104db
z input sample rate: 75khz
cpu: microchip pic32mx at up to 50mhz
current draw: 51ma on the +12v rail, 19ma on the -12v rail
