Mungo Enterprises State Zero Reference Manual

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Table Of Contents

Table of Contents

Table of Contents
Connections
- Power
- Display
- Audio
- MIDI
- Patchfield
Module Reference
- Introduction
- Oscilloscope
- Master
- Oscillator
- Low Frequency Oscillator
- Envelope
- Filter
- Amplifier
- Comparator
- Sample and Hold
- Slew Rate Limiter
- Curve and Quantize
- Mixer
- Sources
- Tempo
- Audio
- Memory
- Voice
Synthesis Techniques

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State Zero

Reference Manual

Table of Contents

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Summary of Contents for Mungo Enterprises State Zero

Page 2 State Zero...
Page 3: Table Of Contents
State Zero Contents Connections Power Display Audio Midi Patchfield Module Reference Introduction Oscilloscope Master Oscillator Low Frequency Oscillator Envelope Filter Amplifier Comparator Sample and Hold Slew Rate Limiter Curve and Quantize Mixer Sources Tempo Audio Memory Voice Synthesis Techniques Normalling...
Page 4 State Zero...
Page 5: Connections
State Zero Connections...
Page 6 State Zero...
Page 7: Power
(as from the typical landscape orientation). Connections to this socket should only be made when the power is switched off at the wall for both State Zero and the monitor.
Page 8 State Zero...
Page 9: Module Reference
State Zero Module Reference...
Page 10: Introduction
State Zero Introduction State Zero represents a new class of synthesiser, bringing together the complete flexibility in the signal path of patchable systems with modern polyphony and memory capabilities. Signal flow is handled in the traditional method using physical patch cables to connect modules together.
Page 11: Oscilloscope
State Zero Oscilloscope The most prominent function of the video output is a dual timebase, 3 channel oscilloscope. The primary channel (green trace) follows whatever patch connection was last made, allowing visualisation of any signal within the system. Triggering is fixed and occurs on positive going zero crossings, while the timebase is automatically adjusted to maintain several cycles on the screen at any time.
Page 12 State Zero...
Page 13: Master
State Zero Master Zoom Displays the zoom level of the last knob adjusted. Increment/Decrement Zoom Increases/decreases the zoom level of the last knob adjusted. Pressing both together zeros the value. Number Increases/decreases the value of the last knob adjusted by a single step, regardless of zoom control.
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Page 15: Oscillator
State Zero Oscillator Frequency Exponential response, modulation of 50% from the master pitch source achieves natural scaling and A440 tuning. Offset is displayed in Octave/Semitone/Cent quantities. Phase Advances or retards phase of the oscillator up to 1 period. Offset is displayed as a percentage.
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Page 17: Low Frequency Oscillator
State Zero Low Frequency Oscillator Frequency Exponential response, modulation of 50% from the master pitch source achieves natural scaling and A440 tuning down 6 octaves. Modulation of 50% from the tempo rate source achieves an eighth note period. Offset is displayed in Octave/Semitone/Cent quantities.
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Page 19: Envelope
State Zero Envelope Rate Exponential response, expressed in nominal units from 0 (infinite hold) to full scale per sample. Level Final level of envelope stage expressed as a percentage of full scale from zero. Synchronization The first stage of the envelope is triggered on a positive going edge through zero and two stages follow it.
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Page 21: Filter
State Zero Filter Frequency Exponential response, modulation of 49.249% from the master pitch source achieves approximately natural scaling about A440 down 1 octave 9 semitones and 23 cents while self oscillating at 24dB/octave. Offset is displayed in Octave/Semitone/Cent quantities. Slope Output selection of 24dB/octave high pass, 12dB/octave low pass, or 24dB/octave low pass.
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Page 23: Comparator
State Zero Comparator Level Threshold for comparison, output is positive full scale for input > threshold and negative full scale for input < threshold. Sample and Hold Synchronization The input value is captured on a positive going edge through zero.
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Page 25: Slew Rate Limiter
State Zero Slew Rate Limiter Exponential response, expressed in nominal units from 0 (infinite hold) to full scale per sample. Down Exponential response, expressed in nominal units from 0 (infinite hold) to full scale per sample. Curve and Quantize Curve Variable transfer function from soft clipping, through logarithmic, linear, and exponential, to crossover distortion.
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Page 27: Mixer
State Zero Mixer Level Amplitude of input expressed as a percentage. Note, the sum of the 4 channels is saturated to full scale.
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Page 29: Sources
State Zero Sources Pitch Master pitch source. Gate Square wave of key press. Accent Velocity of key press. Pitch bender Value of pitch bend wheel. Modulation Value of modulation wheel. Noise Uniformly distributed white noise source.
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Page 31: Tempo
State Zero Tempo Note Length Tempo clock period selection of quarter, eigth, or sixteenth note length. Clock Square wave clock with 0.5 duty cycle at the selected rate. Rate Tempo rate independent of clock period selection. Audio Audio Input Source supplied from audio inputs.
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Page 33: Memory
State Zero Memory Save Holding down this button while sending a program change message will store the current voice to that location. Alternatively press and hold the save button then select the save location using the increment/decrement keys while they are in program mode, the voice will be stored on release of the save button.
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Page 35: Synthesis Techniques
State Zero Synthesis Techniques...
Page 36: Normalling
State Zero is no coincidence. STAEDTLER Lumocolor non-permanent pens in the medium or broad size are perfect for this application.
Page 37: Legato
State Zero Legato Playing overlapping notes in one of the monophonic modes will provide a new trigger for each key press. To achieve legato voicing where the amplitude (if not other) envelopes do not retrigger for overlapped notes, pass the gate signal through a slew rate limiter.
Page 38: Filter Resonance
State Zero Filter Resonance The filter modules of State Zero do not have a built in resonance control, instead resonance can be added by mixing the output of the filter back to its input. Positive feedback gains will be unstable and negative gains too large will self oscillate uncontrollably.
Page 39: Envelope Variations
State Zero Envelope Variations The 4 stage point-to-point envelopes provide numerous variations on the traditional ADSR envelope shapes. Some examples include: ADSR With the 3 stage rate set to zero it is disabled, combined with the 1 and final stages levels set to 100% and 0% respectively a conventional ADSR envelope is formed.