| 摘要 |
Improvements in compressors, expanders and noise reduction systems are disclosed which reduce the susceptibility of such circuit arrangements to undue control by signals outside the pass-band(s) (i.e., stop-band signals) in which the circuits are active. Level dependent circuitry operates, particularly by means of non-linear processing, to reduce the circuit response to the effect of stop-band signal components at high input signal levels.
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