Some content of this application is unavailable at the moment.
If this situation persist, please contact us atFeedback&Contact
1. (WO2019050646) TRANSIENT DETECTION FOR SPEAKER DISTORTION REDUCTION
Latest bibliographic data on file with the International Bureau    Submit observation

Pub. No.: WO/2019/050646 International Application No.: PCT/US2018/045405
Publication Date: 14.03.2019 International Filing Date: 06.08.2018
IPC:
G10L 21/0316 (2013.01) ,G10L 25/18 (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
0316
by changing the amplitude
G PHYSICS
10
MUSICAL INSTRUMENTS; ACOUSTICS
L
SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
25
Speech or voice analysis techniques not restricted to a single one of groups G10L15/-G10L21/129
03
characterised by the type of extracted parameters
18
the extracted parameters being spectral information of each sub-band
Applicants:
HATAB, Ziad Ramez [US/US]; US (US)
LINDEMANN, Eric [US/US]; US (US)
MELANSON, John, L. [US/US]; US (US)
CIRRUS LOGIC INTERNATIONAL SEMICONDUCTOR LTD. [GB/GB]; 7B Nightingale Way Quartermile, Edinburgh EH3 9EG, GB (AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BE, BF, BG, BH, BJ, BN, BR, BW, BY, BZ, CA, CF, CG, CH, CI, CL, CM, CN, CO, CR, CU, CY, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, FR, GA, GB, GD, GE, GH, GM, GN, GQ, GR, GT, GW, HN, HR, HU, ID, IE, IL, IN, IR, IS, IT, JO, JP, KE, KG, KH, KM, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LT, LU, LV, LY, MA, MC, MD, ME, MG, MK, ML, MN, MR, MT, MW, MX, MY, MZ, NA, NE, NG, NI, NL, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SI, SK, SL, SM, SN, ST, SV, SY, SZ, TD, TG, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, UZ, VC, VN, ZA, ZM, ZW)
Inventors:
HATAB, Ziad Ramez; US
LINDEMANN, Eric; US
MELANSON, John, L.; US
Agent:
SMITH, Darren; US
LIN, Steven; US
MCLELLAN, Peter; US
PRATI, Danny; US
BARRETT, Michael; US
Priority Data:
15/698,19307.09.2017US
Title (EN) TRANSIENT DETECTION FOR SPEAKER DISTORTION REDUCTION
(FR) DÉTECTION TRANSITOIRE POUR RÉDUCTION DE DISTORSION DE HAUT-PARLEUR
Abstract:
(EN) Audio distortion by a speaker may be reduced by detecting onset audio events within an audio signal and modifying the audio to reduce the audio distortion perceived by a listener. The onsets may be detected using a psych-acoustic model by determining critical sub-band powers and corresponding masking thresholds. When a loudness value calculated from the CSBs and masking thresholds exceeds a threshold level, certain frequency bands may be attenuated and other frequency bands may be amplified. The audio modification may be performed on a frame-by-frame basis and each frame may be processed multiple times until the onset is sufficiently masked or attenuated.
(FR) La présente invention vise à réduire la distorsion audio d'un haut-parleur via la détection d'événements audio apparaissant à l'intérieur d'un signal audio, et la modification de l'audio pour réduire la distorsion audio perçue par un auditeur. Les apparitions peuvent être détectées à l'aide d'un modèle psycho-acoustique via la détermination de puissances de sous-bandes critiques (CSB) et de seuils de masquage correspondants. Lorsqu'une valeur de sonie calculée à partir des CSB et des seuils de masquage dépasse un niveau seuil, certaines bandes de fréquences peuvent être atténuées et d'autres bandes de fréquences peuvent être amplifiées. La modification audio peut être exécutée une trame après l'autre, et chaque trame peut être traitée une pluralité de fois jusqu'à ce que l'apparition soit suffisamment masquée ou atténuée.
front page image
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: English (EN)
Filing Language: English (EN)