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Patent Searching and Data


Title:
MIXING DEVICE, MIXING METHOD, AND MIXING PROGRAM
Document Type and Number:
WIPO Patent Application WO/2019/203124
Kind Code:
A1
Abstract:
Provided is a mixing technology with which it is possible to suppress degradation of a low-priority sound and output a more natural mixed sound irrespective of the size or quality of a playback device. This mixing device for mixing a first signal and a second signal on a time-frequency plane has: a control signal generation unit which generates a control signal that indicates whether or not to perform a preferential mixing that includes amplification of the first signal and attenuation of the second signal; and a gain derivation unit which derives, on the basis of the control signal, a first gain to amplify the first signal and a second gain to attenuate the second signal. The control signal at least takes a first value and a second value different from the first value. The first value does not continue beyond a specific bandwidth on the time-frequency axis. When the control signal takes the first value, the mixing device applies the preferential mixing to the first and second signals, whereas in the case when the control signal takes the second value, the mixing device applies simple addition to the first and second signals.

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Inventors:
TAKAHASHI KOTA (JP)
MIYAMOTO TSUKASA (JP)
ONO YOSHIYUKI (JP)
ABE YOJI (JP)
INOUE HIROSHI (JP)
Application Number:
PCT/JP2019/015832
Publication Date:
October 24, 2019
Filing Date:
April 11, 2019
Export Citation:
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Assignee:
UNIV ELECTRO COMMUNICATIONS (JP)
HIBINO CORP (JP)
International Classes:
H04R3/00; G10L21/0332; G10L21/0364
Foreign References:
JP2013051589A2013-03-14
JP2016134706A2016-07-25
JP2012010154A2012-01-12
JP5057535B12012-10-24
JP2016134706A2016-07-25
JP2018078981A2018-05-24
Other References:
See also references of EP 3783912A4
Attorney, Agent or Firm:
ITOH, Tadashige et al. (JP)
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