| 摘要 |
In one embodiment, an apparatus for processing sound includes a means for analysing a sound signal into a number of signal channels that may be classified as desired signal channels and noise signal channels and further divided into frequency specific signal channels; a means for applying variable gain to each signal channel independently; and a means for applying a minimum gain to each signal channel so as to achieve linear amplification of mid-to-high intensity signals in each signal channel. The numerous gain adjusted signal channels are then combined in order to generate a single output sound signal. The application of the minimum gain differentially in each signal channel improves sound quality for loud sounds and improves signal-to-noise ratio in the combined output signal. The apparatus may be implemented in dedicated hardware embodiment or by software running on a microprocessor.
|
