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1. (WO2018222683) DYNAMIC SPECTRAL FILTERING
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Pub. No.: WO/2018/222683 International Application No.: PCT/US2018/035080
Publication Date: 06.12.2018 International Filing Date: 30.05.2018
IPC:
G10L 21/034 (2013.01) ,G10L 21/0364 (2013.01) ,H03G 3/32 (2006.01) ,H03G 3/30 (2006.01) ,H03G 5/00 (2006.01) ,H03G 5/16 (2006.01)
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
0324
Details of processing therefor
034
Automatic adjustment
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
0364
for improving intelligibility
H ELECTRICITY
03
BASIC ELECTRONIC CIRCUITRY
G
CONTROL OF AMPLIFICATION
3
Gain control in amplifiers or frequency changers
20
Automatic control
30
in amplifiers having semiconductor devices
32
the control being dependent upon ambient noise level or sound level
H ELECTRICITY
03
BASIC ELECTRONIC CIRCUITRY
G
CONTROL OF AMPLIFICATION
3
Gain control in amplifiers or frequency changers
20
Automatic control
30
in amplifiers having semiconductor devices
H ELECTRICITY
03
BASIC ELECTRONIC CIRCUITRY
G
CONTROL OF AMPLIFICATION
5
Tone control or bandwidth control in amplifiers
H ELECTRICITY
03
BASIC ELECTRONIC CIRCUITRY
G
CONTROL OF AMPLIFICATION
5
Tone control or bandwidth control in amplifiers
16
Automatic control
Applicants:
BOSE CORPORATION [US/US]; The Mountain Framingham, MA 01701-9168, US
Inventors:
MOGHIMI, Amir, Reza; US
Agent:
SMITH, Craig R.; US
ANDREASEN, David, S.; US
Priority Data:
15/612,16802.06.2017US
Title (EN) DYNAMIC SPECTRAL FILTERING
(FR) FILTRAGE SPECTRAL DYNAMIQUE
Abstract:
(EN) Audio systems and methods are provided to increase relevant content of an audio signal relative to a noise level, and include filtering the audio signal to reduce spectral content below a cutoff frequency, where the cutoff frequency is based upon a noise value.
(FR) L'invention concerne des systèmes audio et des procédés permettant d'augmenter le contenu pertinent d'un signal audio par rapport à un niveau de bruit, et comprenant le filtrage du signal audio pour réduire un contenu spectral au-dessous d'une fréquence de coupure, la fréquence de coupure étant basée sur une valeur de bruit.
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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: English (EN)
Filing Language: English (EN)