IL100174A - Public address intelligibility system - Google Patents

Public address intelligibility system

Info

Publication number
IL100174A
IL100174A IL10017491A IL10017491A IL100174A IL 100174 A IL100174 A IL 100174A IL 10017491 A IL10017491 A IL 10017491A IL 10017491 A IL10017491 A IL 10017491A IL 100174 A IL100174 A IL 100174A
Authority
IL
Israel
Prior art keywords
public address
intelligibility system
intelligibility
public
address
Prior art date
Application number
IL10017491A
Other languages
English (en)
Other versions
IL100174A0 (en
Original Assignee
Hughes Aircraft Co
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 Hughes Aircraft Co filed Critical Hughes Aircraft Co
Publication of IL100174A0 publication Critical patent/IL100174A0/xx
Publication of IL100174A publication Critical patent/IL100174A/xx

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
    • G10L15/00—Speech recognition
    • G10L15/02—Feature extraction for speech recognition; Selection of recognition unit
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R27/00—Public address systems
    • 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
    • G10L21/0316—Speech enhancement, e.g. noise reduction or echo cancellation by changing the amplitude
    • G10L21/0364—Speech enhancement, e.g. noise reduction or echo cancellation by changing the amplitude for improving intelligibility

Landscapes

  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Physics & Mathematics (AREA)
  • Signal Processing (AREA)
  • Human Computer Interaction (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Health & Medical Sciences (AREA)
  • Computational Linguistics (AREA)
  • Multimedia (AREA)
  • Quality & Reliability (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Circuit For Audible Band Transducer (AREA)
  • Tone Control, Compression And Expansion, Limiting Amplitude (AREA)
  • Interconnected Communication Systems, Intercoms, And Interphones (AREA)
IL10017491A 1991-03-27 1991-11-27 Public address intelligibility system IL100174A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US67603791A 1991-03-27 1991-03-27

Publications (2)

Publication Number Publication Date
IL100174A0 IL100174A0 (en) 1992-08-18
IL100174A true IL100174A (en) 1997-09-30

Family

ID=24712968

Family Applications (1)

Application Number Title Priority Date Filing Date
IL10017491A IL100174A (en) 1991-03-27 1991-11-27 Public address intelligibility system

Country Status (10)

Country Link
US (1) US5459813A (fr)
EP (1) EP0505645B1 (fr)
JP (1) JP3151459B2 (fr)
KR (1) KR950013557B1 (fr)
CN (1) CN1041266C (fr)
CA (1) CA2056110C (fr)
DE (1) DE69131095T2 (fr)
ES (1) ES2133281T3 (fr)
IL (1) IL100174A (fr)
MX (1) MX9102610A (fr)

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US9258664B2 (en) 2013-05-23 2016-02-09 Comhear, Inc. Headphone audio enhancement system
CN104575515A (zh) * 2013-10-23 2015-04-29 中兴通讯股份有限公司 一种提高语音质量的方法及装置
US9531333B2 (en) * 2014-03-10 2016-12-27 Lenovo (Singapore) Pte. Ltd. Formant amplifier
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TWI662545B (zh) * 2018-06-22 2019-06-11 塞席爾商元鼎音訊股份有限公司 調整語音頻率之方法及其聲音播放裝置
CN109658952B (zh) * 2018-12-13 2020-10-09 歌尔科技有限公司 一种音频信号处理方法、设备及存储介质
CN109671422B (zh) * 2019-01-09 2022-06-17 浙江工业大学 一种获取纯净语音的录音方法
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Also Published As

Publication number Publication date
KR950013557B1 (ko) 1995-11-08
DE69131095T2 (de) 1999-09-23
JPH04328798A (ja) 1992-11-17
DE69131095D1 (de) 1999-05-12
MX9102610A (es) 1994-06-30
EP0505645A1 (fr) 1992-09-30
HK1003305A1 (en) 1998-10-23
CA2056110C (fr) 1997-02-04
ES2133281T3 (es) 1999-09-16
IL100174A0 (en) 1992-08-18
CA2056110A1 (fr) 1992-09-28
CN1041266C (zh) 1998-12-16
US5459813A (en) 1995-10-17
JP3151459B2 (ja) 2001-04-03
CN1065370A (zh) 1992-10-14
EP0505645B1 (fr) 1999-04-07
KR920018650A (ko) 1992-10-22

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Legal Events

Date Code Title Description
HK Corrigendum

Free format text: JOURNAL NO. 12/95 PAGE 3190 APPLICATION NO. 100174 THIS APPLICATION WAS PUBLISHED IN ERROR. THE APPLICATION HAS NOT YET BEEN ACCEPTED. THE SPECIFICATION IS NOT OPEN FOR PUBLIC INSPECTION. THE ANNOUNCEMENT IS NOT TO BE REGARDED AS A PUBLICATION IN ACCORDANCE WITH SECTION 26 OF THE PATENTS LAW 5727-1967.

FF Patent granted
KB Patent renewed
HP Change in proprietorship
KB Patent renewed
MM9K Patent not in force due to non-payment of renewal fees