15  Signal Processing

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Figure 63  (a) bass; (b) treble

‘Tilt’ control, in which a single knob varies the relative levels of bass and treble (see Figures 65 and 66).

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Figure 65  Circuit for ‘tilt’ control

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Figure 66  ‘Tilt’ control frequency response

Compressors

Definitions:

1.  A compressor is a device which reduces the dynamic range of an audio signal by a controllable amount with no significant waveform distortion.

2.  Threshold. The output ...

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