MadLab Bleep-o-tron Quick Start Manual

Bleep-o-tron

Bleep-o-tron has the following features:

• polyphonic with 4 voices (4 notes can be played simultaneously)

• 2 x oscillators (timbres) per voice

• 8 x phase-modulation waveforms + combinations (36 in total)

• white noise

• 6 x ADSR (attack-decay-sustain-release) envelopes per voice

• 6 x LFOs (low-frequency oscillators) per voice

• 6 x LFO waveforms (sine, square, triangle, rising sawtooth, falling sawtooth, noise)

• detuned oscillators by semitones or cents

• connects to standard MIDI keyboards (velocity sensitive)

• keyboard transpose (up to +/– 2 octaves)

• keyboard split

• pitch bend and modulation

• ring modulator

• oscillator synch

• flanger (swept comb filter)

• portamento (constant rate and constant time)

• delay line (up to 150ms) with feedback and dry-wet mix

• selectable MIDI channel #1 to #16 or all channels

• 40 x preset patches

• 24 x user patches (non-volatile)

• master volume control

• Windows desktop app Patch Editor

The Patch Editor is located in the repository below. A single zip file contains the executable and associated

DLL. Simply unzip to a directory on your machine, no installer needed.

www.github.com/clubmadlab/Bleep-o-tron/

Email: info@madlab.org

Web:

www.madlab.org

Twitter: @clubmadlab

Table of Contents

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Page 1 Bleep-o-tron Bleep-o-tron has the following features: • polyphonic with 4 voices (4 notes can be played simultaneously) • 2 x oscillators (timbres) per voice • 8 x phase-modulation waveforms + combinations (36 in total) • white noise • 6 x ADSR (attack-decay-sustain-release) envelopes per voice •...
Page 2 The software includes a power-on self-test. The LED should flash twice if the board is functioning correctly. Bleep-o-tron can output an audio signal on its jack socket which has a maximum peak-to-peak of about 2 volts. This is more than capable of producing a loud sound in a pair of 32-ohm impedance headphones.
Page 3 Windows desktop Patch Editor app. Typically this works in conjunction with a USB-to-MIDI adapter connected to the PC and the MIDI socket on Bleep-o-tron. (Note that the USB-to-MIDI adapter must be able to handle MIDI SysEx messages correctly for the Patch Editor to work.)
Page 4 A specific MIDI channel can be selected causing Bleep-o-tron to ignore MIDI notes and commands sent on other channels, or it can be set to disregard MIDI channel information altogether and respond to notes and commands on all channels. The default behaviour is to respond to MIDI channel #1.
Page 7 3.5mm jack socket MIDI 5-pin DIN socket S1 - S4 miniature tactile pushbutton POWER 2.1mm dc power socket PP3 moulded battery snap + 4 x AA battery box Self-adhesive rubber feet x 4 Design and documentation © MadLab Ltd. 2022...