Dual Random Voltage Generator (2RVG)
The RANDOM VOLTAGE GENERATOR (RVG) produces random voltages which vary smoothly or in a step-wise manner. Random timing pulses are also available. Rate of change of all outputs is voltage controllable over a wide range.
Dual Quadrature Oscillator (QUO)
The QUADRATURE OSCILLATOR (QUO) provides signals and features which make it ideal for controlling the Quad Panner. It generates two sine waves which are always displaced 90 degrees in phase from one another. This phase difference provides exactly the correct relationship for swirling a sound through quadraphonic space in a circular pattern (using the Quad Panner). Since the Oscillator has a basic range from longer than 20 seconds per cycle to 500 cycles per second, many effects can be produced. Swirling a sound at an audio rate produces interesting spatial and modulative effects. Additional features include linear VCAs for each of the outputs so that spatial swirls can be made to decrease in size, effectively spiraling inward. A HOLD input "freezes" the outputs whenever pulsed high. Thus a swirl can be stopped at a given location, with the sound just "hanging there" until operation is resumed. Switches on the panel allow disabling the oscillator, a feature which has been found to be useful for live performance. The use of this module is not limited to Quad Panning. The phase separation between the oscillator's outputs provides for many interesting cross-fading effects when they are used to control other Serge modules.
Dual Active Processors (ACPR)
The ACTIVE PROCESSOR (ACPR) is an accurate, linear cross-fader for either control voltages or audio signals. This module provides an important link in complex patches, allowing the user to smoothly change from one control voltage to another. It is possible to cross-fade between different envelopes, for example, or to gradually switch control over a bank of oscillators from one output of a sequencer to another output. A scaling buffer is included in the bottom section to further invert and process control voltages.
Dual Transient Generator (DTG)
The DUAL TRANSIENT GENERATOR (DTG) provides two independent outputs with voltage controllable rise and fall times. This module is identical to the Dual Universal Slope Generator except that it does not have all of the front panel features. This module is a useful, space-effective unit to be used for many of the same functions as the Dual Universal Slope Generator. Common uses of the Dual Transient Generator are for simple “AR”-type envelope generation, as a dual voltage-controlled low frequency oscillator, or as a voltage-controlled clock (especially suitable for clocking the Touch Keyboard Sequencer or any of the Sequencer Programmers). These functions can be patched with the Dual Universal Slope Generator, but since many of the features are left unused in these patches, the Dual Transient Generator provides the same function while using less front Panel space.
The ACTIVE PROCESSOR (ACPR) is an accurate, linear cross-fader for either control voltages or audio signals. This module provides an important link in complex patches, allowing the user to smoothly change from one control voltage to another. It is possible to cross-fade between different envelopes, for example, or to gradually switch control over a bank of oscillators from one output of a sequencer to another output. A scaling buffer is included in the bottom section to further invert and process control voltages.
Dual Transient Generator (DTG)
The DUAL TRANSIENT GENERATOR (DTG) provides two independent outputs with voltage controllable rise and fall times. This module is identical to the Dual Universal Slope Generator except that it does not have all of the front panel features. This module is a useful, space-effective unit to be used for many of the same functions as the Dual Universal Slope Generator. Common uses of the Dual Transient Generator are for simple “AR”-type envelope generation, as a dual voltage-controlled low frequency oscillator, or as a voltage-controlled clock (especially suitable for clocking the Touch Keyboard Sequencer or any of the Sequencer Programmers). These functions can be patched with the Dual Universal Slope Generator, but since many of the features are left unused in these patches, the Dual Transient Generator provides the same function while using less front Panel space.
Multi Channel Quad Mixer (QMX)
The MULTI-CHANNEL QUADRAPHONIC MIXER (QMX) is the top of the line studio quality output mixer for four channel applications. From a minimum of two inputs, it is expandable up to seven independent inputs. Like the other Serge output mixers, this module is an especially important module for live performance, for computer control of amplitude and location, and for automated mixes in the studio.
The Quad Mixer consists of two or more input sections with a single Quad Output Mixer. An equal-power QUAD PANNER CHANNEL (QPC) is used to position the sound image in quadraphonic space. The amplitude of each channel is controlled by a VCA, so that both gain control and spatial location can be realized simultaneously in each Quad Channel. An input is available for mini-phone plug hook up to external audio sources. Due to fast response, low distortion, and excellent control voltage rejection, location modulation can be effected up to supersonic frequencies in quad space with virtually no noise.
The Quad Output Mixer sums the quad signals from each Quad Panner Channel. An important feature of this output section is the master gain VCA, which controls the overall level of the quadraphonic outputs. Thus, the entire output level can be conveniently faded in, faded out, or adjusted with a single knob or control voltage. There are four Auxiliary inputs, one to each outputs channel for mixing other signals into the output mixer. There are also Auxiliary inputs on the Quad Panner Channels which are voltage controlled in such a way that spatial cross-fading can be achieved. The sound from one speaker can be faded out, while a different sound at another speaker is faded in.
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