| 摘要 |
The method involves the input signal being converted into a quasi-analog signal by a floating point representation. The converted signal is then processed by a psycho-acoustic filter, so affecting the frequency response inversely to the human hearing response curve such that regions of high hearing sensitivity are lowered in their loudness. The filter output is quantized with the destination word width (N+X), and the quantized data word is then added to a noise signal of the same width (N+X). |
