Title:
SYSTEM AND METHOD FOR TARGET SOUND SIGNAL RESTORATION
Document Type and Number:
WIPO Patent Application WO/2017/204226
Kind Code:
A1
Abstract:
Provided are a system and a method for voice signal restoration that are able to restore, with a high degree of accuracy, a target sound signal from a noise-containing sound signal without using prior information. A common sparse component estimation unit 7 that receives, as input, amplitude spectrograms of M channels is provided for estimating a common sparse component containing a sparse time-frequency component which is highly likely to be commonly included in the amplitude spectrograms of the largest number of channels among the M channels. A phase restoration unit 9 restores a phase of the common sparse component so as to obtain a target sound complex spectrogram. A target sound signal conversion unit 13 converts the target sound complex spectrogram into a target sound signal, which is a temporal signal.
Inventors:
BANDO YOSHIAKI
YOSHII KAZUYOSHI
ITOYAMA KATSUTOSHI
OKUNO HIROSHI
YOSHII KAZUYOSHI
ITOYAMA KATSUTOSHI
OKUNO HIROSHI
Application Number:
PCT/JP2017/019259
Publication Date:
November 30, 2017
Filing Date:
May 23, 2017
Export Citation:
Assignee:
UNIV KYOTO (JP)
International Classes:
G10L21/0264; G10L21/0208
Domestic Patent References:
| WO2015060375A1 | 2015-04-30 |
Other References:
YOSHIAKI BANDO ET AL.: "Henbun Bayes Ta-Channel RNMF ni Motosuku Junan Sakujo Rescue Robot no Tameno Onsei Kyocho", THE 34TH ANNUAL CONFERENCE OF THE ROBOTICS SOCIETY OF JAPAN YOKOSHU, 7 September 2016 (2016-09-07)
YOSHIAKI BANDO ET AL.: "Junan Sakujo Rescue Robot no Tameno Robust Shuseibun Bunseki o Mochiita Soko Zatsuon Yokuatsu", PROCEEDINGS OF THE 77TH NATIONAL CONVENTION OF INFORMATION PROCESSING, 17 March 2015 (2015-03-17), pages 2-505 - 2-506
YOSHIAKI BANDO ET AL.: "Junan Sakujo Rescue Robot no Tameno Robust Shuseibun Bunseki o Mochiita Soko Zatsuon Yokuatsu", PROCEEDINGS OF THE 77TH NATIONAL CONVENTION OF INFORMATION PROCESSING, 17 March 2015 (2015-03-17), pages 2-505 - 2-506
Attorney, Agent or Firm:
NISHIURA Tsuguharu (JP)
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