| 摘要 |
In one embodiment, an apparatus for processing sound includes a means ( 401 ) for analysing a sound signal into a number of frequency bands and a means ( 403 ) for applying variable gain to each frequency band independently. Gain in applied under control of a number of gain comparator means ( 409 ) each of which generates a number of statistical distribution estimates in respect of each signal and compares those estimates to predetermined hearing presponse parameters stored in memory ( 411 ). The numerous gain compensated frequency bands are then combined ( 415 ) in order to generate a single sound signal. The apparatus may be implemented in dedicated hardware embodiment or by software running on a microprocessor.
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