| 摘要 |
The present invention provides an audio dynamic range signal processor. In one embodiment the processor uses an averaging detector (42) for receiving an input signal (30) and for generating a time-averaged value (42) of the input signal defined as the average signal magnitude. The processor includes a peak detector (40) for generating a value representative of the peak magnitude of the input signal defined as the peak signal magnitude, and an adjustable Crest Factor Sensitivity factor (32) for adjusting the peak signal magnitude to produce an adjusted peak signal magnitude. In addition, the processor has a selector (46) for setting a selected signal magnitude as the larger of the average signal magnitude and the adjusted peak signal magnitude. The processor has a dynamic processor for adjusting the amplitude of the input signal with the variable gain (56), where the dynamic processor gain is dependent upon the selected signal magnitude. |
