| 摘要 |
This invention generally relates to audio signal processing apparatus and methods for altering, and particularly increasing, the perceived level of bass frequencies in an audio signal. The apparatus comprises an audio input (202) to receive an audio input signal; a compressor (204) coupled to the audio input and having an output, to compress said audio input signal; a high-cut filter coupled to the output of said compressor to provide a filtered compressor output; and a combiner (206) to combine a signal from said compressor output with a signal from said audio input to provide a combined audio output; and wherein said compressor is configured to distort said audio input signal such that said distortion is perceivable as an increase in the level of bass in said combined audio output.
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