17 Analogue Noise Reduction
Noise Masking
(See also Section 3 and Figure 8)
Noise masking is an essential part of good noise reduction systems. Figure 81 illustrates sine-wave masking at 65 dBA SPL.
Figure 81 Sine-wave masking at 65 dBA SPL (courtesy of Ehmer (1959))
Elementary Compander
Figure 82 (a) Elementary compander, (b–d) the dynamic response of its compressor
Constant-Slope Devices
Characteristics are shown in Figure 83.
Figure 83 ...
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