IN2014MU00290A - - Google Patents

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Publication number
IN2014MU00290A
IN2014MU00290A IN290MU2014A IN2014MU00290A IN 2014MU00290 A IN2014MU00290 A IN 2014MU00290A IN 290MU2014 A IN290MU2014 A IN 290MU2014A IN 2014MU00290 A IN2014MU00290 A IN 2014MU00290A
Authority
IN
India
Prior art keywords
compression
fft
hearing aids
level sounds
hearing
Prior art date
Application number
Inventor
C Pandey Prem
Tiwari Nitya
Original Assignee
Indian Inst Technology Bombay
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 Indian Inst Technology Bombay filed Critical Indian Inst Technology Bombay
Priority to PCT/IN2015/000049 priority Critical patent/WO2015111084A2/en
Priority to IN290MU2014 priority patent/IN2014MU00290A/en
Priority to US15/113,271 priority patent/US9672834B2/en
Publication of IN2014MU00290A publication Critical patent/IN2014MU00290A/en

Links

Classifications

    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; 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
    • G10L19/02—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 spectral analysis, e.g. transform vocoders or subband vocoders
    • G10L19/022—Blocking, i.e. grouping of samples in time; Choice of analysis windows; Overlap factoring
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R25/00—Deaf-aid sets, i.e. electro-acoustic or electro-mechanical hearing aids; Electric tinnitus maskers providing an auditory perception
    • H04R25/35—Deaf-aid sets, i.e. electro-acoustic or electro-mechanical hearing aids; Electric tinnitus maskers providing an auditory perception using translation techniques
    • H04R25/353—Frequency, e.g. frequency shift or compression
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R25/00—Deaf-aid sets, i.e. electro-acoustic or electro-mechanical hearing aids; Electric tinnitus maskers providing an auditory perception
    • H04R25/35—Deaf-aid sets, i.e. electro-acoustic or electro-mechanical hearing aids; Electric tinnitus maskers providing an auditory perception using translation techniques
    • H04R25/356—Amplitude, e.g. amplitude shift or compression
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R25/00—Deaf-aid sets, i.e. electro-acoustic or electro-mechanical hearing aids; Electric tinnitus maskers providing an auditory perception
    • H04R25/50—Customised settings for obtaining desired overall acoustical characteristics
    • H04R25/505—Customised settings for obtaining desired overall acoustical characteristics using digital signal processing
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2430/00—Signal processing covered by H04R, not provided for in its groups
    • H04R2430/03—Synergistic effects of band splitting and sub-band processing

Abstract

Dynamic range compression in the hearing aids is provided for restoring normal loudness of low level sounds without making the high level sounds uncomfortably loud. An apparatus along with a method using sliding-band compression is disclosed for significantly reducing the temporal and spectral distortions generally associated with the currently used single and multiband compression techniques. It uses a frequency-dependent gain function calculated on the basis of auditory critical bandwidth based short-time power spectrum and the specified hearing thresholds, compression ratios, and attack and release times. It is realized using FFT-based analysis-synthesis and can be integrated with other FFT-based signal processing in hearing aids and audio systems.
IN290MU2014 2014-01-27 2015-01-27 IN2014MU00290A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
PCT/IN2015/000049 WO2015111084A2 (en) 2014-01-27 2015-01-27 Dynamic range compression with low distortion for use in hearing aids and audio systems
IN290MU2014 IN2014MU00290A (en) 2014-01-27 2015-01-27
US15/113,271 US9672834B2 (en) 2014-01-27 2015-01-27 Dynamic range compression with low distortion for use in hearing aids and audio systems

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IN290MU2014 IN2014MU00290A (en) 2014-01-27 2015-01-27

Publications (1)

Publication Number Publication Date
IN2014MU00290A true IN2014MU00290A (en) 2015-09-11

Family

ID=53682072

Family Applications (1)

Application Number Title Priority Date Filing Date
IN290MU2014 IN2014MU00290A (en) 2014-01-27 2015-01-27

Country Status (3)

Country Link
US (1) US9672834B2 (en)
IN (1) IN2014MU00290A (en)
WO (1) WO2015111084A2 (en)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9331649B2 (en) * 2012-01-27 2016-05-03 Cochlear Limited Feature-based level control
TWI609367B (en) * 2016-10-20 2017-12-21 宏碁股份有限公司 Electronic device and gain compensation method for specific frequency band using difference between windowed filters
US10476630B2 (en) * 2018-01-08 2019-11-12 Samsung Electronics Co., Ltd. Digital bus noise suppression
US10951994B2 (en) 2018-04-04 2021-03-16 Staton Techiya, Llc Method to acquire preferred dynamic range function for speech enhancement
US11011180B2 (en) * 2018-06-29 2021-05-18 Guoguang Electric Company Limited Audio signal dynamic range compression
US11445307B2 (en) * 2018-08-31 2022-09-13 Indian Institute Of Technology Bombay Personal communication device as a hearing aid with real-time interactive user interface
WO2020069120A1 (en) 2018-09-28 2020-04-02 Dolby Laboratories Licensing Corporation Distortion reducing multi-band compressor with dynamic thresholds based on scene switch analyzer guided distortion audibility model
KR20210055630A (en) * 2019-11-07 2021-05-17 한국전기연구원 Hearing Compensation Method of Hearing Aids Apparatus
EP3840222A1 (en) * 2019-12-18 2021-06-23 Mimi Hearing Technologies GmbH Method to process an audio signal with a dynamic compressive system
CN111479204B (en) * 2020-04-14 2021-09-03 上海力声特医学科技有限公司 Gain adjustment method suitable for cochlear implant
US11335361B2 (en) * 2020-04-24 2022-05-17 Universal Electronics Inc. Method and apparatus for providing noise suppression to an intelligent personal assistant
CN114125658B (en) * 2020-08-25 2023-12-19 上海艾为电子技术股份有限公司 Dynamic range control circuit, audio processing chip and audio processing method thereof
NL2031643B1 (en) * 2022-04-20 2023-11-07 Absolute Audio Labs B V Method and device for compressing a dynamic range of an audio signal
CN115691537B (en) * 2022-12-28 2023-06-23 江苏米笛声学科技有限公司 Earphone audio signal analysis and processing system

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5500902A (en) 1994-07-08 1996-03-19 Stockham, Jr.; Thomas G. Hearing aid device incorporating signal processing techniques
US6097824A (en) 1997-06-06 2000-08-01 Audiologic, Incorporated Continuous frequency dynamic range audio compressor
US5832444A (en) 1996-09-10 1998-11-03 Schmidt; Jon C. Apparatus for dynamic range compression of an audio signal
AU2001283205A1 (en) 2000-08-07 2002-02-18 Apherma Corporation Method and apparatus for filtering and compressing sound signals
US20030220801A1 (en) 2002-05-22 2003-11-27 Spurrier Thomas E. Audio compression method and apparatus
EP1869948B1 (en) * 2005-03-29 2016-02-17 GN Resound A/S Hearing aid with adaptive compressor time constants
DK1802168T3 (en) 2005-12-21 2022-10-31 Oticon As System for controlling a transfer function in a hearing aid
DE102006047694B4 (en) 2006-10-09 2012-05-31 Siemens Audiologische Technik Gmbh Method for dynamic compression of an audio signal and corresponding hearing device
JP5399271B2 (en) * 2007-03-09 2014-01-29 ディーティーエス・エルエルシー Frequency warp audio equalizer
WO2010028683A1 (en) 2008-09-10 2010-03-18 Widex A/S Method for sound processing in a hearing aid and a hearing aid
US8600076B2 (en) 2009-11-09 2013-12-03 Neofidelity, Inc. Multiband DRC system and method for controlling the same
US8634578B2 (en) 2010-06-23 2014-01-21 Stmicroelectronics, Inc. Multiband dynamics compressor with spectral balance compensation
US8913768B2 (en) 2012-04-25 2014-12-16 Gn Resound A/S Hearing aid with improved compression

Also Published As

Publication number Publication date
US9672834B2 (en) 2017-06-06
US20160336015A1 (en) 2016-11-17
WO2015111084A3 (en) 2015-12-03
WO2015111084A2 (en) 2015-07-30

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