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A-187.1 |
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Voltage
Controlled DSP Effects Module |
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The
A-187-1 is a DSP based effects module. Four parameters of the
selected digital effect are voltage controlled. The main effect
(e.g. reverb, delay, pitch-shifter, equalizer) is selected by the
two small buttons effect up/down. The upper row of the display shows
the effect that is currently selected.In the lower row the four
parameters are shown as well as a small bar left from the
abbreviation that displays the current parameter value. Each
parameter can be adjusted manually (upper potentiometer row) and
modified by external control voltages (lower row of the
potentiometers and upper row of the sockets). The lower row of the
sockets containes the two audio inputs and outputs. Another button
(bypass) is used to turn the effect on/off. When bypass is chosen
the upper line of the display shows in turn "BYPASS" and
the name of the pre-selected effect. In the bypass mode another
effect can be pre-selected and called-up by pressing the bypass
button again. Even the effect parameters can be adjusted and are
displayed with the bar graphs. But they become effective not before
the bypass mode is left. A list with all effects and the voltage
controlled parameters is shown below. The module is equipped with
two audio inputs and two audio outputs because the DSP board
features stereo audio processing. The audio inputs can process usual
A-100 signal levels without clipping/distortion. For higher levels
external attenuators (e.g.. A-183-1) or VCAs may be used. A ready
made DSP board is used inside the A-187-1 module. Consequently only
these effects and parameters are available that are supported by the
DSP module. Some parameters can be changed only in steps or with
audible artefacts. The DSP board has 20 Bit DA and AD converter with
32 kHz sample rate available. The inter sound processing uses 24
Bit. |
Width
18 HP |
Depth
200 mm |
Current
60 mA |
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A-177.2
Manual |
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