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Pub. No.:    WO/2009/057488    International Application No.:    PCT/JP2008/069088
Publication Date: 07.05.2009 International Filing Date: 22.10.2008
H04R 3/04 (2006.01), G10L 21/04 (2006.01), H03G 5/02 (2006.01)
Applicants: CLARION CO., LTD. [JP/JP]; 35-2, Hakusan 5-chome, Bunkyo-ku, Tokyo 1128608 (JP) (For All Designated States Except US).
HASHIMOTO, Takeshi [JP/JP]; (JP) (For US Only)
Inventors: HASHIMOTO, Takeshi; (JP)
Agent: TONOMOTO, Motoki; 1-11-401, Nihonbashi-Hakozakicho, Chuo-ku, Tokyo 1030015 (JP)
Priority Data:
2007-281158 30.10.2007 JP
(JA) 聴覚感度補正装置
Abstract: front page image
(EN)Provided is an auditory sensibility correction device which can add a preferable loudness characteristic to an output sound without depending on a sound source characteristic of an audio signal even when the audio signal has a high band or low band subjected to a loudness correction. The auditory sensibility correction device (1) includes: loudness processing means (2) which executes a loudness process on an audio signal in accordance with a band; level difference calculation means (4) which calculates a level difference between a signal level of each band and a signal level of all the bands; gain offset means (4) which performs an offset process of a gain required by the entire band signal level according to the level difference of each band; and gain setting means (5) which applies the correction gain of each band to the audios signal of each band which has been subjected to the loudness process.
(FR)L'invention concerne un appareil de correction de sensibilité auditive permettant d'ajouter une caractéristique de sonie préférable à un son produit indépendamment d'une caractéristique de source sonore d'un signal audio, même lorsque le signal audio présente une bande haute ou une bande basse soumise à une correction de sonie. L'appareil de correction de sensibilité auditive (1) comprend : un moyen de traitement de sonie (2) qui exécute un processus de sonie sur un signal audio selon une bande; un moyen de calcul de différence de niveau (3) qui calcule une différence de niveau entre le niveau de signal de chaque bande et le niveau du signal de toutes les bandes; un moyen de décalage de gain (4) qui effectue un processus de décalage de gain requis par le niveau de signal de la bande complète selon la différence de niveau de chaque bande; et un moyen de réglage de gain (5) qui applique le gain de correction de chaque bande au signal audio de chaque bande soumise à un processus de sonie.
(JA) 既に高域や低域に対してラウドネス補正が行われたオーディオ信号であっても、そのオーディオ信号の音源特性に依存せずに、好適なラウドネス特性を出力音に付加することが可能な聴覚感度補正装置を提供する。  聴覚感度補正装置1は、帯域に応じてオーディオ信号にラウドネス処理を施すラウドネス処理手段2と、帯域別の信号レベルと全帯域の信号レベルとのレベル差を算出するレベル差計算手段4と、帯域別のレベル差に基づいて全帯域の信号レベルにより求められるゲインのオフセット処理を行うゲインオフセット手段4と、帯域別の補正ゲインをラウドネス処理が行われた帯域別のオーディオ信号に適用するゲイン設定手段5とを有する。
Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BR, BW, BY, BZ, CA, CH, CN, CO, CR, CU, CZ, DE, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IS, JP, KE, KG, KM, KN, KP, KR, KZ, LA, LC, LK, LR, LS, LT, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PG, PH, PL, PT, RO, RS, RU, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW.
African Regional Intellectual Property Organization (BW, GH, GM, KE, LS, MW, MZ, NA, SD, SL, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MT, NL, NO, PL, PT, RO, SE, SI, SK, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, ML, MR, NE, SN, TD, TG).
Publication Language: Japanese (JA)
Filing Language: Japanese (JA)