Mungo Enterprises c0 User manual

Frequency Offset, added to modulation sets the frequency
of the sample rate conversion and convolution.
Slew Limiter, variable slew rate applied to the linear
frequency. Exponentially scaled.
Signal Output, full range DC coupled output from the
sample rate convertor.
SD Card, reads 16bit mono .wav files off
FAT formatted SD cards from W0.WAV to
W9.WAV in sequence. Sample rate insensitive,
maximum length 12,000 samples.
Frequency Modulation, signal input and depth control
scaled in V/octave.
Input Amplifier, bipolar gain control of input amplitude.
Signal Inputs, full range DC coupled inputs. When the
zoom control is held in (+) during loading a limited
DC cut filter will be applied to the inputs.
Clock Input, frequency tracking input.
Power, ±12V 25mA
+5V 250mA operating
12HP
Amplitude Modulation, signal input and depth control
for exponential amplifier. Will provide gain to both the
modulated signal and the source.
Amplitude Offset, added to modulation sets the
exponential gain applied to the convolution.
Load Button, loads a waveform into the convolution
kernel from the SD card, holding the zoom control in (+)
while loading will enable interpolation. Holding the button
while no SD card is installed will adjust delay time
up/down alternately.
Convolution Output, full range DC coupled output with
gain and convolution applied.

Delay Offset, independent to each channel, added to
the modulation and midi note value. Exponentially scaled.
Ranges from 0.2 ms to over 2 s.
Slew Limiter, variable slew rate applied to the delay time
of both channels independently. Exponentially scaled.
Signal Outputs, full range DC coupled outputs.
Tune Button, generates a C4 reference square wave on
both outputs. Feeding back this to the A input calibrates the
delay transit time for tuned feedback. Holding zoom +/-
while pressing this button sets the delay time of both
channels to track midi note data.
Delay Modulation, independent to each channel, signal
input and depth control scaled in V/octave.
Input Amplifier, bipolar gain control of channel A.
Signal Inputs, full range DC coupled inputs.
Clock Input, frequency tracking input applied to both
channels. Delay times remain a fixed multiple of the clock
period.
Power, ±12V 25mA
+5V 125mA operating
12HP
Sum Button, adds channel A into channel B predelay.
Holding zoom +/- while pressing this button enables a DC
cut filter on the inputs.

Frequency Offset, added to modulation and midi note
value sets the cutoff frequency of the low pass filter.
Scaling is exponential V/octave for both the offset and
modulation sources.
Resonance Offset, added to modulation sets the gain of
the feedback path in the filter. With appropriate curve
amounts and total loop gain the filter will self oscillate.
Curve Offset, added to modulation sets the gain about
zero of the curve/distortion component in the signal path.
Positive values produce gain and an overdrive distortion
type transfer function, while negative values reduce gain
and produce inverse (crossover) distortion.
VCA Output, output signal of filter amplified by
exponential amplifier.
Direct Output, of filter and curve functions in series.
Frequency Modulation, signal input and depth control
scaled in V/octave.
Assignable Modulation, signal input and depth control.
Can modulate any of the 3 continuous controls to the right
by selecting top/middle/bottom with zoom +/none/- when
pressing the function button.
VCA Input, signal input and depth control for exponential
amplifier. Will provide gain to both the modulated signal
and the source.
Source Input, signal to be filtered.
Function Button, swaps between 12 and 24 dB/octave
slope of the filter core.
Power, ±12V 25mA
+5V 125mA operating
12HP

Depth Offset, added to modulation sets the offset of
the audio window ratiometrically to the remaining buffer
within the full waveform.
Width Offset, added to modulation sets the width of the
audio window ratiometrically to the full size of waveform.
Tracking Output, output signal in V/octave estimating
the frequency of the input waveform.
Audio Output, output signal of modulated audio.
Depth Modulation, signal input and depth control linearly
scaled in volts per second of delay/offset time.
Width Modulation, signal input and depth control linearly
scaled in volts per second of audio window.
Input, trimmed 1V/octave input during waveform playback
otherwise used for input of live audio.
Reset Input, positive going edge triggers reset of
wavefrom playback. High level holds grain or recording
in live input modes.
Power, ±12V 25mA
+5V 125mA operating
12HP
Function Button, swaps between live modes or
loads waveform from SD card if present.
SD Card, reads 16bit mono .wav files off
FAT formatted SD cards from W0.WAV to
W9.WAV in sequence. Sample rate insensitive,
maximum length 500,000 samples.
Frequency Modulation, signal input and depth control
scaled in V/octave.
Frequency Offset, added to fixed and variable
modulation and midi note value sets the frequency of the
sawtooth core oscillator.
Tracking Button, enables correction of output pitch,
hold when pressing the function button to latch setting.

Live Mode, the function button swaps between the two live modes
when an SD card is not installed.
While the LED is lit the hold mode is enabled, it samples the current
grain at a positive going edge on the reset input and continues to
play this until a negative going edge ignoring any changes to the
window depth or width while held. Note, the buffer will overflow if
the hold is maintianed for many seconds and the grain will glitch as
it jumps to the new data.
Swapping to the record pause mode (LED unlit), holding the reset
input high will disable filling the buffer. This can be used to sample
live sounds for manipulation as all functions operate as normal, but
while paused all incoming sound will be lost.
Playback Mode, the function button cycles through the wave files
stored on the SD card if inserted. Once a file is loaded the card can
be removed and the sound will remain in memory until the function
button is pressed again to change mode or load another sound.
Files named W0.WAV to W9.WAV stored in the root directory of the
card will be loaded in sequence one at a time. They must be 16 bit
mono wave files in the .wav format, the sample rate is ignored and
up to 500,000 samples can be loaded into the buffer for realtime
manipulation.
Interpolation, holding in zoom (+ or -) when loading a waveform
or changing modes will enable interpolation of the output audio.
Dozens or less, maintains only tonal information
window size can create strong formants.
Hundreds, microsound fragments that are hard to
identify their source.
Thousands, sample fragments where the source
is clear but rhythmically devoid.
Tens of thousands, sampling maintaining the
rhythmic context of the source material.
Grain size, has a strong effect on the
resultant sounds, adjusting the window
size dramatically changes the result.
Window Size in Samples

Delay Time, period between trigger and attack of envelope
scaled exponentially.
Attack Rate, rate at which envelope approaches full scale,
scaled exponentially.
Decay/Release Rate, rate at which envelope approaches
zero, scaled exponentially.
Sum Output, output signal of all channels summed.
Envelope Output, direct envelope output, 0-10V unipolar.
Modulation, signal input and depth control modulating
the gain of channel 1.
Channel 1, signal input and inverting gain/attenuation.
Channel 2, signal input and inverting gain/attenuation.
Channel 3, trimmed unity input.
Gate Input, positive going edge triggers envelope.
Power, ±12V 25mA
+5V 125mA operating
12HP
Function Button, swaps between attack-decay or
attack-release modes of the envelope. Selecting zoom
+/- when pressing the button assigns the envelope to the
modulation or channel 2 depth respectively.

Width Offset, added to the modulation sets the peak
amplitude of the noise signal, maintaining a constant signal
power.
Filter Offset, added to the modulation and oscillator
frequency, sets the frequency cutoff of the low pass filter
and slew limiter functions. Range includes infinite hold.
Sampled Output, DC coupled output trimmed for offset
and gain.
Sampling Button, swaps between sample & hold
and track & hold functions and triggers a sample
immediately. Selecting zoom +/- when pressing the
button enables midi tracking of the oscillator and filter.
Width Modulation, signal input and depth control scaled
in linear amplitude.
Filter Modulation, signal input and depth control scaled
in V/octave.
Signal Input, full range DC coupled input, functions as
a 1V/octave input when sampling noise/oscillator.
Reset Input, positive going edge triggers reset of
oscillator, or sampling if oscillator is stopped.
Power, ±12V 25mA
+5V 125mA operating
12HP
Function Button, swaps between applying the slew
limiter or low pass filter to the sampled signal. Selecting
zoom +/0/- when pressing the button selects the source
as noise/signal in/oscillator for sampling.
Frequency Modulation, signal input and depth control
scaled in V/octave.
Frequency Offset, added to the modulation sets the
frequency of the oscillator triggering the sampling. Range
inlcudes completely stopped.
Noise Output, unprocessed output from noise source.

Strike Softness, filter of the impulse.
Central Size, damping area, ratiometric to full size.
Impulse Output, full amplitude trigger signal.
Final Output, synthesised output.
Size, modulation input, depth, and offset control
scaled in V/octave. Continuously variable.
Location of strike, modulation input, depth, and
offset control used at trigger. Ratiometric of size.
Decay, modulation input, depth, and offset control
used at trigger. Exponentially scaled.
Velocity, offset from nominal +/- 5V range.
Power, ±12V 25mA
+5V 125mA operating
Trigger Input, positive going edge trigger.
16HP
Central Decay, decay in central region.
Trigger Button, manually triggers a strike. Holding
+ zoom while pressing latches maximum velocity,
holding - zoom silences the entire model.

Width, ratio of width to depth of sound stage.
Scaled exponentially.
Decay, exponentially scaled, maintains constant
power at output.
Direct Output, dry delayed signal without reverb.
Full Output, output including all reflections.
Size, modulation input, depth, and offset control
exponentially scaled. Size of the entire sound stage.
Location of source, modulation input, depth, and
offset control. Ratiometric of size from front to back.
Location of pickup, modulation input, depth, and
offset control. Ratiometric of source location to back.
Audio input, DC coupled, +/- 10V range.
Power, ±12V 25mA
+5V 175mA operating
16HP
Reflection filter, highpass or lowpass filter
applied to each reflection of sound.

Loop Start, sets the position for the start of looping,
ratiometrically scaled with the waveform.
Loop Width, sets the position for the end of looping,
ratiometrically scaled with the waveform and added to the
loop start position.
Sampler Output,.output signal of the sampler.
Looper Output, output signal of the looper.
Start, sets the position at start of playback, ratiometrically
scaled with the waveform.
Sampler Frequency, signal input and sampler playback
frequency control scaled in V/octave.
Input, audio input for recording to looper buffer.
Reset Input, positive going edge triggers reset and
synchronisation of looper playback. 0.01Hz to 2.5kHz
Power, ±12V 25mA
+5V 150mA operating
12HP
Load Button, swaps between the two loaded loops. When
zooming in loads from the SD card to the sampler. When
zooming out loads the looper buffer not in use from the
SD card or if no card present from the audio input. SD Card, reads 16bit mono .wav files off
FAT formatted SD cards from S0.WAV to
S9.WAV in sequence. Sample rate insensitive,
maximum length 500,000 samples.
Granular Frequency, signal input and looper playback
frequency control scaled in V/octave.
Granular Width, exponentially scaled, sets the size of the
grains used for pitch shifting. Extreme small settings disable
pitch shifting and interpolation.
Trigger Button, triggers sampler and sets looping mode
as reversing/looping/single shot when zoom control is held
at +/0/- respectively.
Gate Input, positive going edge triggers sampler start
and negative going edge triggers the end of looping.

Looper Phase Locked Loop, (PLL) the reset input of the looper
triggers a PLL to lock onto the incoming period of the positive going
edges of the signal. Each positive going edge triggers the start of a new
period with the PLL adjusting its frequency to maintain synchronisation.
Live Recording, pressing the load button while the zoom control is held
in the out (-) position and no SD card is present will load audio from the
input to the waiting buffer during the next period.
File Loading, pressing the load button while the zoom control is held in
the in (+) position will load the next file from the SD card to the waiting
buffer. They must be 16 bit mono wave files in the .wav format, the
sample rate is ignored and up to 200,000 samples can be loaded into
each buffer for playback. Files named S0.WAV to S9.WAV stored in the
root directory of the card will be loaded in sequence one at a time,
overwiriting any sound present in the waiting buffer.
Buffer Swap, pressing the load button when the zoom control is in the
neutral position will queue the active and waiting buffers to be swapped
at the next positive going edge of the reset input. The waiting buffer is
retained until either new data is loaded to it or power is removed.
Sampler, the sampler data is loaded from the SD card by holding
zoom in (+) while pressing the load button. Total memory available
for the sampler is 500,000 samples less the two equally sized buffers
of the looper. They must be in 16 bit mono wave files in the .wav
format, the sample rate is ignored. Files named S0.WAV to S9.WAV
stored in the root directory will be loaded in sequence one at a time,
overwriting any data present in the memory.
Sampler Looping Modes, the 3 different looping modes are
selected by the position of the zoom control when the trigger button
is pressed. When the zoom is held out/neutral/in they are:
- No looping, play from start to end at positive going edge of gate.
0 Looping in a single direction only. Held until gate goes low.
+ Looping in alternate directions. Held until gate goes low.
The start and loop start locations are both proportional to the file
length and can play forwards or backwards through the file.
Similarly the loop width is proportional to the file length but is also
offset from the loop start location forwards or backwards. Even
when looping is disabled the sampler will still play to the start and
end positions of the loop on the way through to the end.
Reset Input
Active Buffer
Waiting Buffer
Swap
Button
Live
Record
Button

Base Frequency, added to modulation sets the lower
frequency of the bandpass filter bank. Exponentially scaled.
Decay Time, variable decay of the analysis or envelope
follower. Exponentially scaled.
Envelope Output, envelope of highpassed remainder of
vocoding analysis for voicing analysis. In bandpass mode,
the envelope of the analysis input.
Filter Output, synthesised output of vocoder or output
of bandpass filter.
Base Frequency Modulation, signal input and depth
control scaled in V/octave.
Filter Band Count, number of channels vocoded in the
range of the filter. Attack time of the envelope follower
in bandpass mode. Exponentially scaled from 1-64 bands.
Analysis Input, or input for envelope follower.
Hold Input, holds output of analysis sections while high.
Power, ±12V 25mA
+5V 125mA operating
12HP
Mode Button, selects vocoding or bandpass filter mode.
Press zoom +/- when switching modes to enable midi
tracking of the base frequency.
Filter Width, added to modulation sets the width of the
bandpass region of the filter bank. Exponentially scaled.
Filter Width Modulation, signal input and depth control
scaled in V/octave.
Synthesis Input, or input for bandpass filter.

Frequency Offset, added to fixed and variable modulation
and midi note value sets the frequency of the sawtooth core
oscillator.
Phase Offset, added to modulation sets the phase offset
of both outputs to the sawtooth core oscillator.
Symmetry Offset, added to modulation sets the
symmetry of the sawtooth and square waveforms.
Sawtooth waveform is swept from negative sawtooth
through triangle to positive sawtooth. Sets the duty cycle
of the square waveform.
Sawtooth Output, output signal of variable symmetry
sawtooth waveform.
Arbitrary Output, alternates between built in waveforms
of sine and square, or sine and arbitrary waveform.
Phase and frequency locked to sawtooth output.
Frequency Modulation, signal input and depth control
scaled in V/octave.
Phase Modulation, signal input and depth control scaled
in V/degree. Will provide gain and limited to ±360 degrees.
Symmetry Modulation, signal input and depth control
Frequency Input, trimmed 1V/octave input.
Reset Input, positive going edge triggers reset of
sawtooth core oscillator.
Power, ±12V 25mA
+5V 125mA operating
12HP
Function Button, swaps between builtin waveforms or
loads arbitrary waveform from SD card.
SD Card, reads 16bit mono .wav files off
FAT formatted SD cards from W0.WAV to
W9.WAV in sequence. Sample rate insensitive,
maximum length 4,000 samples.





























 



