AJH Synth MiniMod Glide & Noise - Manual (Page 2)

2 8
4 6
0 10
ON
OFF
CV OUT
CV IN
HOLD
DOWN
UP
GLIDE + NOISE
m
RED
PINK
WHITE
GLIDE
Glide speed
Glide On/Off
Red Noise Output
White Noise Output
Pink Noise Output
Glide Mode
Hold CV Input
Glide CV Input
Glide CV Output
1 White Noise Out : This is the White Noise Output and signal level is +/-5 Volts peak to peak. Pure white noise
is a sound that contains every frequency within the audio range (generally from 20 hertz
to 20 kHz) in equal amounts. This white noise is generated by using a specially selected
transistor in avalanche mode and using the exact circuitry from the Model D synthesiser,
so it is a vintage analogue approximation of pure white noise.
2 Pink Noise Out : This is the Pink Noise Output and signal level is +/-5 Volts peak to peak. Pure pink noise is
white noise that has been filtered to reduce the volume of each increasing octave, which
compensates for the increase in the number of frequencies per octave. Each octave is
reduced by 3 decibels, resulting in a noise signature that has equal energy at every
octave. This pink noise is generated using the same discrete transistor circuitry as the
vintage Model D synthesiser and is an analogue approximation of pure pink noise.
3 Red Noise Out : This is the Red Noise Output and signal level is +/-5 Volts peak to peak. Red (or Brownian)
noise is more heavily filtered than pink noise, at the rate of 6db/octave or more, so that it
has a much lower high frequency content. It is most commonly used as a random control
voltage rather than an audio signal.
4 Glide On/Off : This switch turns the Glide effect on/off. It is NOT a bypass switch, its function is the same
as turning the Glide Speed control fully counter clockwise.
5 Glide CV Input : This is the Control Voltage (CV) Input to the Glide module. The acceptable input voltage
range is +/- 10 Volts. However only positive voltages (0 to +6 Volts) are processed,
negative voltages are ignored and voltages between +6V and +10v are limited to +6v.
The most common application would be to feed in a 1V/Oct signal from a Midi/CV
converter, however it’s use is not limited to this and the module can be used for many
different up/down slew effects.
Controls, Inputs and Outputs
1
2
3
4
7
9
5
6
8