FR2783991A1 - Telephone avec moyens de rehaussement de l'impression subjective du signal en presence de bruit - Google Patents

Telephone avec moyens de rehaussement de l'impression subjective du signal en presence de bruit Download PDF

Info

Publication number
FR2783991A1
FR2783991A1 FR9812159A FR9812159A FR2783991A1 FR 2783991 A1 FR2783991 A1 FR 2783991A1 FR 9812159 A FR9812159 A FR 9812159A FR 9812159 A FR9812159 A FR 9812159A FR 2783991 A1 FR2783991 A1 FR 2783991A1
Authority
FR
France
Prior art keywords
noise
audio signal
compression
gain
measuring
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
FR9812159A
Other languages
English (en)
French (fr)
Inventor
El Hassani Ahmed Nabi Charkani
Mitzova Daniela Parayre
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Philips Electronique Gran Public
Original Assignee
Philips Consumer Communications France SAS
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 Philips Consumer Communications France SAS filed Critical Philips Consumer Communications France SAS
Priority to FR9812159A priority Critical patent/FR2783991A1/fr
Priority to CN99802540A priority patent/CN1289500A/zh
Priority to JP2000573062A priority patent/JP2002526983A/ja
Priority to KR1020007005764A priority patent/KR20010032522A/ko
Priority to EP99952451A priority patent/EP1044549A1/de
Priority to PCT/EP1999/006787 priority patent/WO2000019686A1/en
Priority to TW088118780A priority patent/TW444488B/zh
Publication of FR2783991A1 publication Critical patent/FR2783991A1/fr
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G3/00—Gain control in amplifiers or frequency changers without distortion of the input signal
    • H03G3/20—Automatic control
    • H03G3/30—Automatic control in amplifiers having semiconductor devices
    • H03G3/32—Automatic control in amplifiers having semiconductor devices the control being dependent upon ambient noise level or sound level
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
    • H04B1/40—Circuits
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G7/00—Volume compression or expansion in amplifiers
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G7/00—Volume compression or expansion in amplifiers
    • H03G7/06—Volume compression or expansion in amplifiers having semiconductor devices
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/60—Substation equipment, e.g. for use by subscribers including speech amplifiers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/60—Substation equipment, e.g. for use by subscribers including speech amplifiers
    • H04M1/6016—Substation equipment, e.g. for use by subscribers including speech amplifiers in the receiver circuit
FR9812159A 1998-09-29 1998-09-29 Telephone avec moyens de rehaussement de l'impression subjective du signal en presence de bruit Pending FR2783991A1 (fr)

Priority Applications (7)

Application Number Priority Date Filing Date Title
FR9812159A FR2783991A1 (fr) 1998-09-29 1998-09-29 Telephone avec moyens de rehaussement de l'impression subjective du signal en presence de bruit
CN99802540A CN1289500A (zh) 1998-09-29 1999-09-14 带有用于在存在噪声下增强主观信号感觉的装置的电话
JP2000573062A JP2002526983A (ja) 1998-09-29 1999-09-14 ノイズのある状態で主体的信号効果を高める手段を有する電話機
KR1020007005764A KR20010032522A (ko) 1998-09-29 1999-09-14 잡음이 존재하는 상황에서 서브젝티브 신호 효과를향상시키기 위한 수단을 구비하는 전화기
EP99952451A EP1044549A1 (de) 1998-09-29 1999-09-14 Telefon mit mitteln zur erhöhung des subjektiven signaleindrucks in der anwesenheit von rauschen
PCT/EP1999/006787 WO2000019686A1 (en) 1998-09-29 1999-09-14 Telephone with means for enhancing the subjective signal impression in the presence of noise
TW088118780A TW444488B (en) 1998-09-29 1999-10-29 Telephone with means for enhancing the subjective signal impression in the presence of noise

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9812159A FR2783991A1 (fr) 1998-09-29 1998-09-29 Telephone avec moyens de rehaussement de l'impression subjective du signal en presence de bruit

Publications (1)

Publication Number Publication Date
FR2783991A1 true FR2783991A1 (fr) 2000-03-31

Family

ID=9530961

Family Applications (1)

Application Number Title Priority Date Filing Date
FR9812159A Pending FR2783991A1 (fr) 1998-09-29 1998-09-29 Telephone avec moyens de rehaussement de l'impression subjective du signal en presence de bruit

Country Status (7)

Country Link
EP (1) EP1044549A1 (de)
JP (1) JP2002526983A (de)
KR (1) KR20010032522A (de)
CN (1) CN1289500A (de)
FR (1) FR2783991A1 (de)
TW (1) TW444488B (de)
WO (1) WO2000019686A1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002069613A2 (en) * 2001-02-26 2002-09-06 Qualcomm Incorporated Method and system for adjusting the dynamic range of a digital-to-analog converter in a wireless communications device

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7539614B2 (en) * 2003-11-14 2009-05-26 Nxp B.V. System and method for audio signal processing using different gain factors for voiced and unvoiced phonemes
CN1811911B (zh) * 2005-01-28 2010-06-23 北京捷通华声语音技术有限公司 自适应的语音变换处理方法
US8964997B2 (en) 2005-05-18 2015-02-24 Bose Corporation Adapted audio masking
US20060262938A1 (en) * 2005-05-18 2006-11-23 Gauger Daniel M Jr Adapted audio response
US8218783B2 (en) 2008-12-23 2012-07-10 Bose Corporation Masking based gain control
US8229125B2 (en) 2009-02-06 2012-07-24 Bose Corporation Adjusting dynamic range of an audio system

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4061874A (en) * 1976-06-03 1977-12-06 Fricke J P System for reproducing sound information
US4381488A (en) * 1981-02-18 1983-04-26 Fricke Jobst P Dynamic volume expander varying as a function of ambient noise level
US5208866A (en) * 1989-12-05 1993-05-04 Pioneer Electronic Corporation On-board vehicle automatic sound volume adjusting apparatus
EP0661858A2 (de) * 1993-12-29 1995-07-05 AT&T Corp. Hintergrundgeräuschkompensation in einem Telefongerät
DE19533260A1 (de) * 1995-09-08 1997-03-13 Siemens Ag Verfahren zur Dynamikregelung niederfrequenter, von Umweltgeräuschen beeinflußter Signale

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5357567A (en) * 1992-08-14 1994-10-18 Motorola, Inc. Method and apparatus for volume switched gain control

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4061874A (en) * 1976-06-03 1977-12-06 Fricke J P System for reproducing sound information
US4381488A (en) * 1981-02-18 1983-04-26 Fricke Jobst P Dynamic volume expander varying as a function of ambient noise level
US5208866A (en) * 1989-12-05 1993-05-04 Pioneer Electronic Corporation On-board vehicle automatic sound volume adjusting apparatus
EP0661858A2 (de) * 1993-12-29 1995-07-05 AT&T Corp. Hintergrundgeräuschkompensation in einem Telefongerät
DE19533260A1 (de) * 1995-09-08 1997-03-13 Siemens Ag Verfahren zur Dynamikregelung niederfrequenter, von Umweltgeräuschen beeinflußter Signale

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002069613A2 (en) * 2001-02-26 2002-09-06 Qualcomm Incorporated Method and system for adjusting the dynamic range of a digital-to-analog converter in a wireless communications device
WO2002069613A3 (en) * 2001-02-26 2003-05-22 Qualcomm Inc Method and system for adjusting the dynamic range of a digital-to-analog converter in a wireless communications device
US6892177B2 (en) 2001-02-26 2005-05-10 Qualcomm Incorporated Method and system for adjusting the dynamic range of a digital-to-analog converter in a wireless communications device

Also Published As

Publication number Publication date
WO2000019686A1 (en) 2000-04-06
JP2002526983A (ja) 2002-08-20
TW444488B (en) 2001-07-01
CN1289500A (zh) 2001-03-28
EP1044549A1 (de) 2000-10-18
KR20010032522A (ko) 2001-04-25

Similar Documents

Publication Publication Date Title
CA2337176C (fr) Procede d'ajustement du volume sonore d'un enregistrement sonore numerique
EP1401183B1 (de) Verfahren und Vorrichtung zur Echokompensation
FR2741217A1 (fr) Procede et dispositif permettant d'eliminer les bruits parasites dans un systeme de communication
FR2781970A1 (fr) Procede et appareil permettant un fonctionnement en telephone a haut-parleur dans un dispostif de communication portable
FR2891098A1 (fr) Procede et dispositif de mixage de flux audio numerique dans le domaine compresse.
US7756714B2 (en) System and method for extending spectral bandwidth of an audio signal
EP2867893A1 (de) Wirksame prä-echodämpfung in einem digitalen audiosignal
EP0998166A1 (de) Anordnung zur Verarbeitung von Audiosignalen, Empfänger und Verfahren zum Filtern und Wiedergabe eines Nutzsignals in Gegenwart von Umgebungsgeräusche
FR2827108A1 (fr) Mobile pour videoconference
EP0364312B1 (de) Integrierte Schaltung für Telefonapparat mit Signalhüllkurvendetektor
FR2719173A1 (fr) Appareil de communication à réglage du bruit.
FR2783991A1 (fr) Telephone avec moyens de rehaussement de l'impression subjective du signal en presence de bruit
EP0359633A1 (de) Logarithmischer Hüllkurvendetektor für ein analoges Signal
EP0781071A1 (de) Steuerungsverfahren für einen Summer
WO2007006919A1 (fr) Procede et dispositif de prise de son, notamment dans des terminaux telephoniques en 'mains libres'
EP1022861B1 (de) Verfahren und vorrichtung zum empfang von rf signalen in einem zweiband mobiltelefon
FR2767941A1 (fr) Suppresseur d'echo par transformation de sens et procede associe
EP0317862B1 (de) Vorrichtung zur Verbesserung des Hörkomforts durch Unterdrückung der Einschwingvorgänge in einer Empfangskette einer FM/PM-Schmalbandeinrichtung, insbesondere für Funkfernsprechen
FR3032073A1 (fr) Dispositif de traitement d'un signal audio
WO2024083522A1 (fr) Procédé de détection d'un effet larsen
FR3133111A1 (fr) Procédé et système d’amélioration du rendu sonore des basses fréquences d’un signal audio
CA3181386A1 (fr) Circuit de controle d'un transducteur ultrasonore
FR2811189A1 (fr) Dispositif de reception d'un signal radiofrequence dans un telephone mobile
FR2792146A1 (fr) Procede de suppression de l'echo acoustique d'un signal audio, notamment dans le signal capte par un microphone
EP1271473A1 (de) Verfahren und Vorrichtung zur Vor- und Nachbearbeitung eines Audiosignals zur Übertragung über einen sehr gestörten Kanal