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SIGNAL PROCESSOR

  • US 20180315439A1
  • Filed: 03/26/2018
  • Published: 11/01/2018
  • Est. Priority Date: 04/28/2017
  • Status: Active Grant
First Claim
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1. A signal processor comprising:

  • a modelling block, comprisinga modelling-block-input-signal-terminal configured to receive a frequency-domain-input-signal;

    a fundamental-frequency-input-terminal configured to receive a fundamental-frequency-signal representative of a fundamental frequency of the frequency-domain-input-signal; and

    a modelling-output-terminal, configured to provide a pitch-model-signal based on a periodic function, the pitch-model-signal spanning a plurality of discrete frequency bins, each discrete frequency bin having a respective discrete frequency bin index, wherein within each discrete frequency bin the pitch-model-signal is defined by;

    the periodic function;

    the fundamental frequency;

    the frequency-domain-input-signal; and

    the respective discrete frequency bin index,a manipulation block, comprising;

    a manipulation-block-input-signal-terminal configured to receive a representation of the frequency-domain-input-signal;

    a model-input-terminal configured to receive a representation of the pitch-model-signal from the modelling block; and

    an output-terminal,wherein the manipulation block is configured to provide an output-signal, to the output-terminal, based on the frequency-domain-input-signal and the pitch-model-signal.

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