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Title:
NEURAL NETWORK-BASED SIGNAL PROCESSING APPARATUS, NEURAL NETWORK-BASED SIGNAL PROCESSING METHOD, AND COMPUTER-READABLE STORAGE MEDIUM
Document Type and Number:
WIPO Patent Application WO/2021/075063
Kind Code:
A1
Abstract:
A spoofing detection apparatus100 includes a multi-channel spectrogram creation unit 10 and an evaluation unit 40. The multi-channel spectrogram creation unit 10 extracts different type of spectrograms from speech data and integrates the different type of spectrograms to create a multi-channel spectrogram. The evaluation unit 40 evaluates the created multi-channel spectrogram by applying the created multi-channel spectrogram to a classifier constructed using labeled multi-channel spectrograms as training data and classifies it to either genuine or spoof.

Inventors:
WANG QIONGQIONG (JP)
KOSHINAKA TAKAFUMI (JP)
LEE KONG AIK (JP)
Application Number:
PCT/JP2019/041226
Publication Date:
April 22, 2021
Filing Date:
October 18, 2019
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Assignee:
NEC CORP (JP)
International Classes:
G06N3/04; G10L17/18
Attorney, Agent or Firm:
BRIGHTAS IP ATTORNEYS (JP)
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