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Title:
MULTI-CHANNEL-BASED INTEGRATED NOISE AND ECHO SIGNAL CANCELLATION DEVICE USING DEEP NEURAL NETWORK
Document Type and Number:
WIPO Patent Application WO/2022/158912
Kind Code:
A1
Abstract:
A multi-channel-based integrated noise and echo signal cancellation device using a deep neural network according to an embodiment may include: a plurality of mic-encoders for receiving a plurality of mic input signals which include echo signals, noise signals, and speech signals of utterers, and respectively converting the plurality of mic input signals into a plurality of pieces of conversion information and outputting the plurality of pieces of conversion information; a channel conversion unit for compressing the plurality of pieces of conversion information and thereby converting same into first input information having the size of a single channel, and outputting the first input information; a far-end signal encoder for receiving a far-end signal, converting the far-end signal into second input information, and outputting the second input information; an attention unit for applying an attention mechanism to the first input information and the second input information to output weight information; a trained first artificial neural network having, as input information, third input information that is aggregate information of the weight information and the second input information, and having, as output information, first output information including mask information for estimating the speech signal from the second input information; and a speech signal estimation unit for outputting an estimated speech signal obtained by estimating the speech signal on the basis of the first output information and the second input information.

Inventors:
CHANG JOON HYUK (KR)
PARK SONG KYU (KR)
Application Number:
PCT/KR2022/001164
Publication Date:
July 28, 2022
Filing Date:
January 21, 2022
Export Citation:
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Assignee:
IUCF HYU (KR)
International Classes:
G10L21/02; G06N3/08; G10L19/008; G10L21/0216; G10L25/30; H04R3/00; H04R3/02
Attorney, Agent or Firm:
HAEUM PATENT & LAW FIRM (KR)
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