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1. (WO2019044564) SIGNAL PROCESSING DEVICE, SILENCING SYSTEM, SIGNAL PROCESSING METHOD, AND PROGRAM
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Pub. No.: WO/2019/044564 International Application No.: PCT/JP2018/030700
Publication Date: 07.03.2019 International Filing Date: 20.08.2018
IPC:
G10K 11/178 (2006.01) ,G10K 11/175 (2006.01)
G PHYSICS
10
MUSICAL INSTRUMENTS; ACOUSTICS
K
SOUND-PRODUCING DEVICES;  METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
11
Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
16
Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
175
using interference effects; Masking sound
178
by electro-acoustically regenerating the original acoustic waves in anti-phase
G PHYSICS
10
MUSICAL INSTRUMENTS; ACOUSTICS
K
SOUND-PRODUCING DEVICES;  METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
11
Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
16
Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
175
using interference effects; Masking sound
Applicants:
パナソニックIPマネジメント株式会社 PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD. [JP/JP]; 大阪府大阪市中央区城見2丁目1番61号 1-61, Shiromi 2-chome, Chuo-ku, Osaka-shi, Osaka 5406207, JP
Inventors:
藤 大地 TOH, Daichi; --
山田 和喜男 YAMADA, Wakio; --
Agent:
特許業務法人北斗特許事務所 HOKUTO PATENT ATTORNEYS OFFICE; 大阪府大阪市北区梅田一丁目12ー17梅田スクエアビル Umeda Square Bldg., 12-17, Umeda 1-chome, Kita-ku, Osaka-shi, Osaka 5300001, JP
Priority Data:
2017-16477529.08.2017JP
Title (EN) SIGNAL PROCESSING DEVICE, SILENCING SYSTEM, SIGNAL PROCESSING METHOD, AND PROGRAM
(FR) DISPOSITIF DE TRAITEMENT DE SIGNAL, SYSTÈME D'AMORTISSEMENT DES SONS, PROCÉDÉ DE TRAITEMENT DE SIGNAL ET PROGRAMME
(JA) 信号処理装置、消音システム、信号処理方法、及びプログラム
Abstract:
(EN) The present invention addresses the problem of providing a signal processing device, a silencing system, a signal processing method, and a program with which it is possible to actively reduce noise and to reduce unpleasant sensations caused in a user by sound that was not canceled out. An additional sound generation unit (138) according to the present invention detects the frequency of noise (Vn) at a control point (Q1) as a noise frequency. The additional sound generation unit (138) generates an additional sound signal (Yb(n)) that includes a signal component having an additional frequency differing from the noise frequency. A cancellation signal generation unit (14) generates a cancellation signal (Ya(n)) that cancels out the noise (Vn) at the control point (Q1). An output unit (142) outputs to a speaker (112) a control sound signal (Yc(n)) in which the additional sound signal (Yb(n)) is added to the cancellation signal (Ya(n)), and outputs a control sound (Vc) from the speaker.
(FR) La présente invention aborde le problème de l'obtention d'un dispositif de traitement de signal, d'un système d'amortissement des sons, d'un procédé de traitement de signal et d'un programme, permettant de réduire activement le bruit et de réduire les sensations désagréables provoquées par un utilisateur par un son qui n'a pas été annulé. À cet effet, une unité de génération de son supplémentaire (138) selon la présente invention détecte la fréquence de bruit (Vn) à un point de commande (Q1) en tant que fréquence de bruit. L'unité de génération de son supplémentaire (138) génère un signal sonore supplémentaire (Yb(n)) qui comprend une composante de signal ayant une fréquence supplémentaire différente de la fréquence de bruit. Une unité de génération de signal d'annulation (14) génère un signal d'annulation (Ya(n)) qui annule le bruit (Vn) au niveau du point de commande (Q1). Une unité de sortie (142) délivre à un haut-parleur (112) un signal sonore de commande (Yc(n)) dans lequel le signal sonore supplémentaire (Yb(n)) est ajouté au signal d'annulation (Ya(n)), et délivre un son de commande (Vc) à partir du haut-parleur.
(JA) 本開示の課題は、能動的に騒音を低減させ、かつ打ち消されなかった騒音がユーザに与える不快感を低減させることができる信号処理装置、消音システム、信号処理方法、及びプログラムを提供することである。本開示に係る付加音生成部(138)は、制御点(Q1)における騒音(Vn)の周波数を騒音周波数として検出する。そして、付加音生成部(138)は、騒音周波数とは異なる付加周波数の信号成分を含む付加音信号(Yb(n))を生成する。キャンセル信号生成部(141)は、制御点(Q1)における騒音(Vn)を打ち消すためのキャンセル信号(Ya(n))を生成する。出力部(142)は、キャンセル信号(Ya(n))に付加音信号(Yb(n))を加えた制御音信号(Yc(n))をスピーカ(112)へ出力して、スピーカ(112)から制御音(Vc)を出力させる。
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Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JO, JP, KE, KG, KH, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (EPO) (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG)
Publication Language: Japanese (JA)
Filing Language: Japanese (JA)