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1. (WO2018199942) MATRIX DECOMPOSITION OF AUDIO SIGNAL PROCESSING FILTERS FOR SPATIAL RENDERING
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Pub. No.: WO/2018/199942 International Application No.: PCT/US2017/029639
Publication Date: 01.11.2018 International Filing Date: 26.04.2017
IPC:
G10L 21/0208 (2013.01)
G PHYSICS
10
MUSICAL INSTRUMENTS; ACOUSTICS
L
SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
21
Processing of the speech or voice signal to produce another audible or non-audible signal, e.g. visual or tactile, in order to modify its quality or its intelligibility
02
Speech enhancement, e.g. noise reduction or echo cancellation
0208
Noise filtering
Applicants:
HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P. [US/US]; 11445 Compaq Center Drive W. Houston, Texas 77070, US
Inventors:
BHARITKAR, Sunil; US
Agent:
BURROWS, Sarah E.; US
MANNAVA, Ashok K.; US
Priority Data:
Title (EN) MATRIX DECOMPOSITION OF AUDIO SIGNAL PROCESSING FILTERS FOR SPATIAL RENDERING
(FR) DÉCOMPOSITION MATRICIELLE DE FILTRES DE TRAITEMENT DE SIGNAUX AUDIO POUR UN RENDU SPATIAL
Abstract:
(EN) In some examples, matrix decomposition of audio signal processing filters for spatial rendering may include determining first and second spatial synthesis filters respectively as a sum and a difference of ipsilateral and contralateral spatial synthesis filters, and determining first and second crosstalk cancellation filters respectively as a sum and a difference of ipsilateral and contralateral crosstalk cancellation filters. A combined spatial synthesizer and crosstalk canceller that includes a first combined filter and a second combined filter may be determined based on application of matrix decomposition to the first and second spatial synthesis filters and the first and second crosstalk cancellation filters. Further, spatial synthesis and crosstalk cancellation on first and second input audio signals may be performed based on application of the combined spatial synthesizer and crosstalk canceller.
(FR) Dans certains exemples, la décomposition matricielle de filtres de traitement de signaux audio pour un rendu spatial peut consister à : déterminer des premier et second filtres de synthèse spatiale respectivement en tant que somme et différence de filtres de synthèse spatiale ipsilatérale et controlatérale ; et déterminer des premier et second filtres d'annulation de diaphonie respectivement en tant que somme et différence de filtres d'annulation de diaphonie ipsilatérale et controlatérale. Un synthétiseur spatial et un annuleur de diaphonie combinés qui comprennent un premier filtre combiné et un second filtre combiné peuvent être déterminés d’après l'application d'une décomposition matricielle aux premier et second filtres de synthèse spatiale ainsi qu’aux premier et second filtres d'annulation de diaphonie. De plus, une synthèse spatiale et une annulation de diaphonie sur des premier et second signaux audio d'entrée peuvent être réalisées d’après l'application du synthétiseur spatial et de l'annuleur de diaphonie combinés.
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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, 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: English (EN)
Filing Language: English (EN)