Harvestman 1991 piston honda mark II User Manual

Harvestman Audio

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AC 10V

PP

GAIN

CV

0-5V

EXT IN

FREQUENCY

FM

AC 10V

PP

1V/OCT

0-8V

RANGE

CV

0-5V

SYNC

0-5V

X

Y

Z

X: WAVE

Y: BANK

Z: ROM

CV

0-5V

WAVEFORM SELECTION

All "attenuverter" controls have their ZERO position at

the TOP (center detent). Turn the knob counterclock-

wise to SUBTRACT the CV input value from the manual

parameter. Turn the knob clockwise to ADD it.

This block is the internal oscillator control. The large knob

and small shaft are the coarse and fine tune controls. The

“range” button switches between audio and LFO mode,

the latter being the RED color. The attenuverter is shared

between the “CV” and “FM” inputs. CV is a unipolar, expo-

nential frequency input, and FM is an AC-coupled audio

input for thru-zero frequency modulation.

This block receives external audio from the input jack and drives

it through the selected wavetable. The Gain is voltage control-

lable with attenuverter. This part of the module has a dedicated

audio output.

The sliders and associated controls select the current wavetable

from a three-dimensional cube. Each axis has a slider for manual

control, and an attenuverting CV input. The LED on the slider

shows if morphing is enabled for that axis.

MORPH DISCONTINUITY

AXIS SELECT

MODE

CV

0-5V

This block selects the wavetable morphing mode. The knob and CV input

adjust the “resolution” of the morphing, from completely smooth to

stepped. The “mode” button switches the morphing from the internal

oscillator (orange) to external input (red). When morphing is disabled in this

way, the corresponding signal source will have strong smoothing applied to

the waveform instead. The “axis select” button disables the morphing for

individual axes of travel, shown by LEDs on the corresponding slider.

ROM contents, as shipped from factory:

0 - Factory A (noisy) Scott Jaeger

1 - Factory B (chords) Scott Jaeger

2 - Classic Waveforms Grant Richter

3 - Bosch Gardens Matthew Davidson

4 - 1µp NES/SID Jordan Bartee/Chris Novello

5 - Schumann PLL Chris Novello

6 - Allophones David Hylander

7 - Chebyshev Michael Firman

8 - old Factory (noisy) Scott Jaeger

9 - old Factory B (additive) Scott Jaeger

A - Classic Waveforms Grant Richter

B - Bosch Gardens Matthew Davidson

C - 1µp NES/SID Jordan Bartee/Chris Novello

D - Schumann PLL Chris Novello

E - Allophones David Hylander

F - Chebyshev Michael Firman

More information and media samples:

http://www.theharvestman.org/1991mk2.php

Support:

email [email protected]

Piston Honda MKII has 16 waveform ROMs onboard, each holding 256 8-bit waves. The

ROMs are organized into 16 banks each. The last 6 ROMs (A-F) may be overwritten by your

own custom data, using the PISTON HONDA expander board. To use, plug the expander

into the back of the module with the power OFF. Then, hold down the DISCONTINUITY

MODE button and turn the power on, and wait one minute for the waves to load. Be sure

to load all 6 slots of the expander, or you will have "blank spots" in the module's memory.

These waveforms are now written to the module’s memory, and you can remove the

expander board.

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