Cart 0

Arcano NES Mono Chiptune Synthesizer User Guide

Arcano NES Mono Chiptune Synthesizer User Guide

Chiptune Synth LLC

The Arcano NES Mono Chiptune Synthesizer is a monophonic MIDI synthesizer that emulates the audio hardware of the NES / Famicom game console, allowing musicians to create NES-style chiptune music by simply connecting a MIDI controller.

Power:
The NES Mono receives power through its USB tye B connector. The USB connector is for power only. It is not a USB-MIDI input.

MIDI:
The NES Mono is controlled via an external MIDI controller. The NES Mono connects to a MIDI controller through its standard 5-pin MIDI DIN connector. MIDI data is received on MIDI channel 1 only. MIDI data on all other MIDI channels is ignored.

Audio:
The NES Mono outputs an unbalanced mono line-level audio signal through a standard 1/4" TS audio jack.

Interface:
The NES Mono features a simple user interface consisting of two potentiometers. The left potentiometer is used to select one of eight possible waveform settings. The right potentiometer is used to select one of eight preset sound parameter settings. It is also possible to create a custom patch by adjusting the synthesizer's 16 sound parameters using MIDI CC channels.

Custom patch editing:
To create a custom patch, the user must first turn both potentiometers all the way to the right. Then the user may edit the sound parameters using MIDI CC channels 20-35. (Please note: a custom patch will not be saved when the synth is turned off.)

Below is a list of the relevant CC channels and their corresponding sound parameters:

CC 20 : initial waveform - waveform when note is triggered : 0 = 12.5% pulse, 1 = 25% pulse, 2 = 50% pulse, 3 = 4-bit triangle, 4 = 5-bit sawtooth, 5 = 8-bit sine (0-5)

CC 21 : final waveform - waveform after waveform-switch-delay threshold is reached : 0 = 12.5% pulse, 1 = 25% pulse, 2 = 50% pulse, 3 = 4-bit triangle, 4 = 5-bit sawtooth, 5 = 8-bit sine (0-5)

CC 22 : initial note offset - note offset before waveform-switch-delay threshold is reached : 0 = one octave below, 24 = one octave above (0-24)

CC 23 : waveform switch delay - time from when note is triggered until waveform switches from initial to final and note switches from offset note to actual note (0-127)

CC 24 : volume envelope attack - time from when note is triggered to maximum volume is reached (0-127)

CC 25 : volume envelope decay - time from maximum volume to sustain volume level is reached (0-127)

CC 26 : volume envelope sustain - volume sustain level while note key is depressed (0-127)

CC 27 : volume envelope release - time from when note key is released to silence (0-127)

CC 28 : vibrato pre-delay - time from when note is triggered to vibrato attack is reached (0-127)

CC 29 : vibrato attack - time from when vibrato begins until maximum vibrato depth is reached (0-127)

CC 30 : vibrato frequency - frequency of vibrato LFO (0-127)

CC 31 : maximum vibrato depth - maximum amplitude of vibrato pitch (0-127)

CC 32 : vibrato LFO waveform - waveform of the vibrato low frequency oscillator : 0 = sine, 1 = 50% pulse, 2 = triangle, 3 = sawtooth (0-3)

CC 33 : arpeggio frequency - (Initial note offset must be set to 0 for arpeggio to be enabled.) (0-127)

CC 34 : pitch-bend depth - maximum pitch-bend depth (0-1)

CC 35 : detune – frequency of the second oscillator (below the fundamental) (0-127)

Preset Waveform Settings (Left)

Dial Color CC 20 CC 21
Red 0 0
Orange 1 1
Yellow 2 2
Green 3 3
Light Blue 4 4
 Dark Blue 5 5
Violet 0 2
Pink 2 0

 

Preset Sound Parameter Values (Right)

 Dial Color CC 22 CC 23 CC 24 CC 25 CC 26 CC 27 CC 28 CC 29 CC 30 CC 31 CC 32 CC 33 CC 34 CC 35
Red 12 16 0 0 127 16 16 0 48 8 0 0 0 0
Orange 12 16 0 100 0 0 0 0 0 0 0 0 0 100
Yellow 10 16 0 0 127 30 20 4 40 32 0 0 0 0
Green 12 16 0 67 33 120 30 4 39 40 0 0 0 0
Light Blue 10 20 0 0 127 16 0 0 85 16 0 0 0 0
Dark Blue 12 16 40 0 127 95 0 0 0 0 0 0 0 0
Violet 0 16 0 0 127 70 0 0 0 0 0 49 0 0
Pink 12 16 8 22 127 73 28 3 47 36 2 0 0 48