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1. WO2020066373 - SOUND SIGNAL MIXING DEVICE AND PROGRAM

Publication Number WO/2020/066373
Publication Date 02.04.2020
International Application No. PCT/JP2019/032668
International Filing Date 21.08.2019
IPC
H04R 3/00 2006.01
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
3Circuits for transducers
H04S 5/02 2006.01
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
SSTEREOPHONIC SYSTEMS
5Pseudo-stereo systems, e.g. in which additional channel signals are derived from monophonic signals by means of phase shifting, time delay or reverberation
02of the pseudo four-channel type, e.g. in which rear channel signals are derived from two-channel stereo signals
CPC
H04R 1/40
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
1Details of transducers, ; loudspeakers or microphones
20Arrangements for obtaining desired frequency or directional characteristics
32for obtaining desired directional characteristic only
40by combining a number of identical transducers
H04R 3/00
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
3Circuits for transducers ; , loudspeakers or microphones
H04R 3/12
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
3Circuits for transducers ; , loudspeakers or microphones
12for distributing signals to two or more loudspeakers
H04R 5/027
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
5Stereophonic arrangements
027Spatial or constructional arrangements of microphones, e.g. in dummy heads
H04S 5/02
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
SSTEREOPHONIC SYSTEMS 
5Pseudo-stereo systems, e.g. in which additional channel signals are derived from monophonic signals by means of phase shifting, time delay or reverberation 
02of the pseudo four-channel type, e.g. in which rear channel signals are derived from two-channel stereo signals
H04S 7/00
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
SSTEREOPHONIC SYSTEMS 
7Indicating arrangements; Control arrangements, e.g. balance control
Applicants
  • KDDI株式会社 KDDI CORPORATION [JP]/[JP]
Inventors
  • 堀内 俊治 HORIUCHI, Toshiharu
Agents
  • 大塚 康徳 OHTSUKA, Yasunori
  • 大塚 康弘 OHTSUKA, Yasuhiro
  • 高柳 司郎 TAKAYANAGI, Jiro
  • 木村 秀二 KIMURA, Shuji
  • 下山 治 SIMOYAMA, Osamu
  • 永川 行光 EIKAWA, Yukimitsu
  • 坂本 隆志 SAKAMOTO, Takashi
  • 前田 浩次 MAEDA, Koji
Priority Data
2018-18201227.09.2018JP
Publication Language Japanese (JA)
Filing Language Japanese (JA)
Designated States
Title
(EN) SOUND SIGNAL MIXING DEVICE AND PROGRAM
(FR) DISPOSITIF ET PROGRAMME DE MÉLANGE DE SIGNAL SONORE
(JA) 音響信号のミキシング装置及びプログラム
Abstract
(EN)
In the present invention, a mixing device has a K-th speaker-set processing means corresponding to each speaker set consisting of two speakers among N speakers, and the K-th speaker-set processing means has a processing means provided so as to correspond to each set of microphones and serving to output a first sound signal and a second sound signal. The mixing device adds up the first sound signals output by the processing means and adds up the second sound signals output by the processing means, and outputs signals for driving the speakers of the corresponding speaker set. Each processing means processes sound signals output by the two microphones of the corresponding microphone set on the basis of a scaling coefficient for determining the scaling ratio of a sound field, a shift coefficient for determining a shift amount of the sound field, and an attenuation coefficient for determining the amount of attenuation of a sound signal output by each microphone.
(FR)
Dans la présente invention, un dispositif de mélange comporte K-ième moyen de traitement d'ensemble de haut-parleurs correspondant à chaque ensemble de haut-parleurs constitué de deux haut-parleurs parmi N haut-parleurs, et le K-ième moyen de traitement d'ensemble de haut-parleurs a un moyen de traitement disposé de façon à correspondre à chaque ensemble de microphones et servant à délivrer un premier signal sonore et un second signal sonore. Le dispositif de mélange additionne les premiers signaux sonores émis par les moyens de traitement et additionne les seconds signaux sonores émis par les moyens de traitement, et émet des signaux pour actionner les haut-parleurs de l'ensemble de haut-parleurs correspondant. Chaque moyen de traitement traite des signaux sonores émis par les deux microphones de l'ensemble correspondant de microphones sur la base d'un coefficient de mise à l'échelle pour déterminer le rapport de mise à l'échelle d'un champ sonore, un coefficient de décalage pour déterminer une quantité de décalage du champ sonore, et un coefficient d'atténuation pour déterminer la quantité d'atténuation d'un signal sonore émis par chaque microphone.
(JA)
ミキシング装置は、N個のスピーカのうちの2つのスピーカのスピーカ組それぞれに対応する第Kスピーカ組処理手段を有し、第Kスピーカ組処理手段は、マイクロフォンの組それぞれに対応して設けられ、第1音響信号と第2音響信号を出力する処理手段を有し、各処理手段が出力する第1音響信号を加算し、かつ、各処理手段が出力する第2音響信号を加算して、対応するスピーカ組のスピーカを駆動する信号を出力し、各処理手段は、音場の拡縮率を決定する拡縮係数と、音場のシフト量を決定するシフト係数と、マイクロフォンが出力する音響信号の減衰量を決定する減衰係数と、に基づき対応するマイクロフォン組の2つのマイクロフォンが出力する音響信号を処理する。
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