BR112022004181A2 - Sistemas e métodos para redução de ruído usando a técnica de redução de ruído de sub-banda - Google Patents

Sistemas e métodos para redução de ruído usando a técnica de redução de ruído de sub-banda

Info

Publication number
BR112022004181A2
BR112022004181A2 BR112022004181A BR112022004181A BR112022004181A2 BR 112022004181 A2 BR112022004181 A2 BR 112022004181A2 BR 112022004181 A BR112022004181 A BR 112022004181A BR 112022004181 A BR112022004181 A BR 112022004181A BR 112022004181 A2 BR112022004181 A2 BR 112022004181A2
Authority
BR
Brazil
Prior art keywords
noise
subband
noise reduction
signals
subband noise
Prior art date
Application number
BR112022004181A
Other languages
English (en)
Inventor
Liao Fengyun
Qi Xin
Zhang Chengqian
Original Assignee
Shenzhen Shokz Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shenzhen Shokz Co Ltd filed Critical Shenzhen Shokz Co Ltd
Publication of BR112022004181A2 publication Critical patent/BR112022004181A2/pt

Links

Classifications

    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L21/00—Speech or voice signal processing techniques to produce another audible or non-audible signal, e.g. visual or tactile, in order to modify its quality or its intelligibility
    • G10L21/02—Speech enhancement, e.g. noise reduction or echo cancellation
    • G10L21/0208—Noise filtering
    • G10L21/0216—Noise filtering characterised by the method used for estimating noise
    • G10L21/0232—Processing in the frequency domain
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K11/00—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
    • G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/175—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound
    • G10K11/178—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound by electro-acoustically regenerating the original acoustic waves in anti-phase
    • G10K11/1785—Methods, e.g. algorithms; Devices
    • G10K11/17853—Methods, e.g. algorithms; Devices of the filter
    • G10K11/17854—Methods, e.g. algorithms; Devices of the filter the filter being an adaptive filter
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
    • G10L19/04—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using predictive techniques
    • G10L19/26—Pre-filtering or post-filtering
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L21/00—Speech or voice signal processing techniques to produce another audible or non-audible signal, e.g. visual or tactile, in order to modify its quality or its intelligibility
    • G10L21/02—Speech enhancement, e.g. noise reduction or echo cancellation
    • G10L21/0208—Noise filtering
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L21/00—Speech or voice signal processing techniques to produce another audible or non-audible signal, e.g. visual or tactile, in order to modify its quality or its intelligibility
    • G10L21/02—Speech enhancement, e.g. noise reduction or echo cancellation
    • G10L21/038—Speech enhancement, e.g. noise reduction or echo cancellation using band spreading techniques
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K11/00—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
    • G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/175—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound
    • G10K11/178—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound by electro-acoustically regenerating the original acoustic waves in anti-phase
    • G10K11/1787—General system configurations
    • G10K11/17879—General system configurations using both a reference signal and an error signal
    • G10K11/17881—General system configurations using both a reference signal and an error signal the reference signal being an acoustic signal, e.g. recorded with a microphone
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K2210/00—Details of active noise control [ANC] covered by G10K11/178 but not provided for in any of its subgroups
    • G10K2210/30—Means
    • G10K2210/301—Computational
    • G10K2210/3026—Feedback
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K2210/00—Details of active noise control [ANC] covered by G10K11/178 but not provided for in any of its subgroups
    • G10K2210/30—Means
    • G10K2210/301—Computational
    • G10K2210/3027—Feedforward
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K2210/00—Details of active noise control [ANC] covered by G10K11/178 but not provided for in any of its subgroups
    • G10K2210/30—Means
    • G10K2210/301—Computational
    • G10K2210/3028—Filtering, e.g. Kalman filters or special analogue or digital filters
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K2210/00—Details of active noise control [ANC] covered by G10K11/178 but not provided for in any of its subgroups
    • G10K2210/30—Means
    • G10K2210/301—Computational
    • G10K2210/3056—Variable gain

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Multimedia (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Health & Medical Sciences (AREA)
  • Computational Linguistics (AREA)
  • Quality & Reliability (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)
  • Circuit For Audible Band Transducer (AREA)
  • Noise Elimination (AREA)

Abstract

sistemas e métodos para redução de ruído usando a técnica de redução de ruído de sub-banda. um sistema de redução de ruído é fornecido. o sistema de redução de ruído pode incluir um sensor de ruído de sub-banda, uma pluralidade de módulos de redução de ruído de sub-banda e um módulo de saída. o sensor de ruído de sub-banda pode ser configurado para detectar um ruído e gerar uma pluralidade de sinais de ruído de sub-banda em resposta ao ruído detectado. cada uma da pluralidade de sinais de ruído de sub-banda pode ter uma sub-banda distinta da banda de frequência do ruído. cada um dos módulos de redução de ruído de sub-banda pode ser configurado para receber um dos sinais de ruído de sub-banda do sensor de ruído de sub-banda e gerar um sinal de correção de ruído de sub-banda para reduzir o sinal de ruído de sub-banda recebido. o módulo de saída pode ser configurado para receber os sinais de correção de ruído de sub-banda e emitir um sinal de correção de ruído para reduzir o ruído com base nos sinais de correção de ruído de sub-banda.
BR112022004181A 2019-09-30 2019-09-30 Sistemas e métodos para redução de ruído usando a técnica de redução de ruído de sub-banda BR112022004181A2 (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2019/109301 WO2021062582A1 (en) 2019-09-30 2019-09-30 Systems and methods for noise reduction using sub-band noise reduction technique

Publications (1)

Publication Number Publication Date
BR112022004181A2 true BR112022004181A2 (pt) 2022-05-31

Family

ID=75337583

Family Applications (1)

Application Number Title Priority Date Filing Date
BR112022004181A BR112022004181A2 (pt) 2019-09-30 2019-09-30 Sistemas e métodos para redução de ruído usando a técnica de redução de ruído de sub-banda

Country Status (7)

Country Link
US (3) US11164556B2 (pt)
EP (1) EP4004915B1 (pt)
JP (1) JP2022550157A (pt)
KR (1) KR20220070520A (pt)
CN (1) CN112889109B (pt)
BR (1) BR112022004181A2 (pt)
WO (1) WO2021062582A1 (pt)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20220110294A (ko) 2019-12-12 2022-08-05 썬전 샥 컴퍼니 리미티드 노이즈 제어를 위한 시스템들 및 방법들
CN114360559B (zh) * 2021-12-17 2022-09-27 北京百度网讯科技有限公司 语音合成方法、装置、电子设备和存储介质

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JPH11259078A (ja) * 1998-03-16 1999-09-24 Oki Electric Ind Co Ltd 能動騒音制御装置
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Also Published As

Publication number Publication date
JP2022550157A (ja) 2022-11-30
US11164556B2 (en) 2021-11-02
EP4004915A1 (en) 2022-06-01
US11817077B2 (en) 2023-11-14
US20220020353A1 (en) 2022-01-20
EP4004915B1 (en) 2024-05-15
KR20220070520A (ko) 2022-05-31
EP4004915A4 (en) 2022-07-13
US20210166672A1 (en) 2021-06-03
US20240071358A1 (en) 2024-02-29
WO2021062582A1 (en) 2021-04-08
CN112889109A (zh) 2021-06-01
CN112889109B (zh) 2023-09-29

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