Title:
SOUND SIGNAL HIGH-RANGE COMPENSATION METHOD, SOUND SIGNAL POST-PROCESSING METHOD, SOUND SIGNAL DECODING METHOD, AND DEVICE, PROGRAM, AND RECORDING MEDIUM THEREFOR
Document Type and Number:
WIPO Patent Application WO/2022/097243
Kind Code:
A1
Abstract:
In the present invention, an nth-channel compensated decoding sound signal ~X'n is obtained, said sound signal compensating for a high range of an nth-channel refined decoding sound signal ~Xn obtained by implementing a signal process in a time region on a nth-channel decoding sound signal ^Xn, which is a decoding sound signal for each stereo channel obtained by decoding a stereo encoding CS for each frame. In this instance: an nth-channel high-range compensation gain ρn is obtained, said gain being a value for bringing the high-range energy of ~X'n close to the high-range energy of ^Xn for each frame of each channel; and a signal obtained by adding, for each frame of each channel, ~X'n to a signal obtained by multiplying the nth-channel high-range compensation gain ρn by a monaural decoding sound signal obtained by decoding a monaural encoding CM that is different from the stereo encoding CS, or by a high-range component of the signal obtained by up-mixing said monaural decoding sound signal for each channel, is outputted as the nth-channel compensated decoding sound signal.
Inventors:
SUGIURA RYOSUKE (JP)
MORIYA TAKEHIRO (JP)
KAMAMOTO YUTAKA (JP)
MORIYA TAKEHIRO (JP)
KAMAMOTO YUTAKA (JP)
Application Number:
PCT/JP2020/041406
Publication Date:
May 12, 2022
Filing Date:
November 05, 2020
Export Citation:
Assignee:
NIPPON TELEGRAPH & TELEPHONE (JP)
International Classes:
G10L19/008; G10L21/0388
Domestic Patent References:
| WO2006070751A1 | 2006-07-06 | |||
| WO2010058518A1 | 2010-05-27 |
Attorney, Agent or Firm:
NAKAO, Naoki et al. (JP)
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