Oberheim GM-400, Руководство по эксплуатации

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Oberheim GM 400
Digital Signal Processor
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125
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Reverberation Eq Lo Shelve (IshF) parameters.
Frequency Range: 50, 70, 100, 140, 200, 280, 400 Hz
Boost/Cut Range: +14db/-14dB
Reverberation Eq Mid Peak (midF) parameters.
Frequency Range: 100, 140, 200, 280, 400, 560, 800 1ko, 1k4, 2k0, 2k8, 4k0, 5k6, 8k0
Hz
Bandwidth (Q) Range: 0.5, 1, 2, 3
Boost/Cut Range: +14db/-14dB
Reverberation Eq Hi Shelve (hshF) parameters.
Freq. Range: 1k5, 2k1 (2k12), 3k0, 4k2 (4k25), 6k0, 8k5, 12k Hz
Boost/Cut Range: +14dB / -14dB
For this section, refer to the explanations supplied in the section on the parametric equalizer.
These controls act on equalization of the late reflections (reverberation).
6.10 NOISE GATE (NG)
The Noise Gate is at the end of the chain of effects and is always active. Its job is to eliminate
the background noises generated by the preamplification effects such as compressors and
distorters, or the hiss caused by very intensive equalization on the high frequencies. By its
very nature, the Noise Gate acts by closing the audio circuit in the absence of an input signal,
or in any case when its amplitude reaches very low audibility levels. It is therefore not able to
eliminate noise present simultaneously with the signal. Since the level of noise produced by
the GM 400 effects is very low in any case, it can be envisaged that in many situations the
Noise Gate can be set to intervene on very low threshold levels or even at level zero.
Threshold parameter. Range: 0 - 90
Sets the threshold below which the Noise Gate comes into operation.
Attack Time parameter. Range: 0 - 10
Sets the amount of time which will pass before the circuit is broken when the signal passes
above the threshold set by the Threshold parameter.
Release Time parameter. Range: 0 - 10