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Anti-spredningsfiltrering for et båndbreddeutvidet taleprediksjonseksiteringssignal

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  • Title:
    Anti-spredningsfiltrering for et båndbreddeutvidet taleprediksjonseksiteringssignal
  • Author: Kandhadai, Ananthapadmanabhan A ; Vos, Koen Bernard
  • Subjects: ACOUSTICS ; MUSICAL INSTRUMENTS ; PHYSICS ; SPEECH ANALYSIS OR SYNTHESIS ; SPEECH OR AUDIO CODING OR DECODING ; SPEECH OR VOICE PROCESSING ; SPEECH RECOGNITION
  • Description: A wideband speech encoder according to one embodiment includes a narrowband encoder and a highband encoder. The narrowband encoder is configured to encode a narrowband portion of a wideband speech signal into a set of filter parameters and a corresponding encoded excitation signal. The highband encoder is configured to encode, according to a highband excitation signal, a highband portion of the wideband speech signal into a set of filter parameters. The highband encoder is configured to generate the highband excitation signal by applying a nonlinear function to a signal based on the encoded narrowband excitation signal to generate a spectrally extended signal.
  • Creation Date: 2017
  • Language: Norwegian
  • Source: esp@cenet
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