Sound processing using complex dynamic representation


In this paper we show that a complex dynamic representation (logenvelope and instantaneous frequency) can be used efficiently to compress the spectrum and band-shift a discrete-time signal. The original method and algorithm conceived here do not violate the amplitude-phase relationships typical of natural sound signals. This is achieved by simultaneous modification via transmapping of the instantaneous amplitude and frequency of a signal.

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@article{Hermanowicz2005SoundPU, title={Sound processing using complex dynamic representation}, author={Ewa Hermanowicz and Miroslaw Rojewski}, journal={2005 13th European Signal Processing Conference}, year={2005}, pages={1-4} }