Title:
DEREVERBERATION DEVICE, PARAMETER ESTIMATION DEVICE, DEREVERBERATION METHOD, PARAMETER ESTIMATION METHOD, AND PROGRAM
Document Type and Number:
WIPO Patent Application WO/2022/168230
Kind Code:
A1
Abstract:
Provided is a dereverberation device that is highly accurate even under a noise environment and under an underdetermined condition. Reverberation is removed by applying a plurality of reverberation prediction filters to an observation signal while switching the plurality of reverberation prediction filters according to each time-frequency bin of the observation signal.
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Inventors:
IKESHITA RINTARO (JP)
KAMO NAOYUKI (JP)
NAKATANI TOMOHIRO (JP)
KAMO NAOYUKI (JP)
NAKATANI TOMOHIRO (JP)
Application Number:
PCT/JP2021/004097
Publication Date:
August 11, 2022
Filing Date:
February 04, 2021
Export Citation:
Assignee:
NIPPON TELEGRAPH & TELEPHONE (JP)
International Classes:
G10L21/0232
Foreign References:
| JP2020503552A | 2020-01-30 | |||
| US20190088269A1 | 2019-03-21 |
Other References:
IKESHITA, RINTARO ET AL.: "lind Signal Dereverberation Based on Mixtureof Weighted Prediction Error Models", IEEE SIGNAL PROCESSSING LETTERS, vol. 28, 2 February 2021 (2021-02-02), pages 399 - 403, XP011842612, DOI: 10.1109/LSP.2021.3056279
XIANG TENG, LU JING, CHEN KAI: "RLS-Based Adaptive Dereverberation Tracing Abrupt Position Change of Target Speaker", ARXIV PREPRINT, ARXIV:1802.08997, 23 August 2018 (2018-08-23), pages 336 - 340, XP033394700, Retrieved from the Internet [retrieved on 20210408]
XIANG TENG, LU JING, CHEN KAI: "RLS-Based Adaptive Dereverberation Tracing Abrupt Position Change of Target Speaker", ARXIV PREPRINT, ARXIV:1802.08997, 23 August 2018 (2018-08-23), pages 336 - 340, XP033394700, Retrieved from the Internet
Attorney, Agent or Firm:
NAKAO, Naoki et al. (JP)
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