percussive effects of acoustic musical instruments. Such effects are easily achieved with the Transient Modulator because its purpose designed adaptive processing acts on differential information in the programme so that the overall long term programme level is minimally affected and sensitivity to control parameters is drastically reduced. The functions of the Transient Modulator are adaptive and totally dependent upon dynamic level changes within the signal. In other words, it will have no effect on a steady state signal, such as a continuous tone which does not change in level. Any control signals it develops are purely dependent upon the extent and rate of change of signal levels. Gain,Threshold & DeadbandWhen the RATIO fader is set positively, significantly larger peak levels can be produced, with potential to increase them up to 24dB greater than the original signal. Conversely, negative ratio values can reduce the overall levels significanlty, therefore the GAIN fader has been designed to operate over a considerable range. Unlike the rest of the processing in the Transient Modulator, the THRESHOLD knob sets an absolute value. Other processing is tracking changes in the waveform and is not related to any absolute setting. In this case, only signals above the THRESHOLD knob setting will be processed. The greater the signal level above the threshold, the greater the effect, the Transient Modulator will have. The DEADBAND knob sets a window below which transient
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