BR112017015378A2 - ?método de adaptação do ganho de volume e amplificador? - Google Patents

?método de adaptação do ganho de volume e amplificador?

Info

Publication number
BR112017015378A2
BR112017015378A2 BR112017015378A BR112017015378A BR112017015378A2 BR 112017015378 A2 BR112017015378 A2 BR 112017015378A2 BR 112017015378 A BR112017015378 A BR 112017015378A BR 112017015378 A BR112017015378 A BR 112017015378A BR 112017015378 A2 BR112017015378 A2 BR 112017015378A2
Authority
BR
Brazil
Prior art keywords
volume gain
slow
gain
volume
gvolume
Prior art date
Application number
BR112017015378A
Other languages
English (en)
Other versions
BR112017015378B1 (pt
Inventor
Mendes Eduardo
Bergère Julien
Calmel Pierre-Emmanuel
Original Assignee
Devialet
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 Devialet filed Critical Devialet
Publication of BR112017015378A2 publication Critical patent/BR112017015378A2/pt
Publication of BR112017015378B1 publication Critical patent/BR112017015378B1/pt

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G7/00—Volume compression or expansion in amplifiers
    • H03G7/002—Volume compression or expansion in amplifiers in untuned or low-frequency amplifiers, e.g. audio amplifiers
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G7/00—Volume compression or expansion in amplifiers
    • H03G7/007—Volume compression or expansion in amplifiers of digital or coded signals

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Circuit For Audible Band Transducer (AREA)
  • Tone Control, Compression And Expansion, Limiting Amplitude (AREA)
  • Control Of Amplification And Gain Control (AREA)

Abstract

a presente invenção se refere a um método de adaptação do ganho de volume (gvolume aplicado) a ser aplicado por um amplificador a pelo menos um sinal de áudio (saudio 1 a saudio n) a ser reproduzido, em função do ganho de volume desejado (gvolume desejado) selecionado por um usuário que inclui as etapas de calcular um nível sonoro lento total normalizado (nsltn) a partir do ou dos sinais (saudio 1 a saudio n) a serem reproduzidos; calcular um ganho de volume lento máximo (gvollentmax) e um ganho de volume lento mínimo (gvollentmin) como o quociente do produto do ganho de volume desejado (gvolume desejado) por um ganho lento máximo (glentmax), respectivamente por um ganho lento mínimo (glentmin) dividido pelo nível sonoro lento total normalizado (nsltn); determinar um primeiro mínimo entre o ganho de volume desejado (gvolume desejado) e o ganho de volume lento máximo (gvollentmax); determinar um segundo mínimo entre o ganho de volume desejado (gvolume desejado) multiplicado por um ganho de volume máximo (gmaxvolume) e o ganho de volume lento mínimo (gvollentmin); determinar, como ganho de volume lento (gvolume lent), o máximo do primeiro e do segundo mínimos determinados anteriormente; calcular o ganho de volume aplicado (gvolume aplicado) em função do ganho de volume lento (gvolume lent).
BR112017015378-5A 2015-01-19 2016-01-19 Método de adaptação do ganho de volume e amplificador BR112017015378B1 (pt)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR1550405 2015-01-19
FR1550405A FR3031852B1 (fr) 2015-01-19 2015-01-19 Amplificateur a reglage de niveau sonore automatique
PCT/EP2016/051029 WO2016116453A1 (fr) 2015-01-19 2016-01-19 Amplificateur à réglage de niveau sonore automatique

Publications (2)

Publication Number Publication Date
BR112017015378A2 true BR112017015378A2 (pt) 2018-01-16
BR112017015378B1 BR112017015378B1 (pt) 2022-12-06

Family

ID=53758284

Family Applications (1)

Application Number Title Priority Date Filing Date
BR112017015378-5A BR112017015378B1 (pt) 2015-01-19 2016-01-19 Método de adaptação do ganho de volume e amplificador

Country Status (9)

Country Link
US (1) US10141905B2 (pt)
EP (1) EP3248286B1 (pt)
JP (3) JP2018509031A (pt)
KR (1) KR102509783B1 (pt)
CN (1) CN107408930B (pt)
BR (1) BR112017015378B1 (pt)
CA (1) CA2974156C (pt)
FR (1) FR3031852B1 (pt)
WO (1) WO2016116453A1 (pt)

Family Cites Families (21)

* Cited by examiner, † Cited by third party
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US4466119A (en) * 1983-04-11 1984-08-14 Industrial Research Products, Inc. Audio loudness control system
US5130665A (en) * 1991-02-14 1992-07-14 Walden Richard L Audio volume level control
JPH06253385A (ja) * 1993-02-23 1994-09-09 Sony Corp 再生装置
US5666430A (en) 1995-01-09 1997-09-09 Matsushita Electric Corporation Of America Method and apparatus for leveling audio output
JP2005516451A (ja) * 2002-01-24 2005-06-02 コーニンクレッカ　フィリップス　エレクトロニクス　エヌ　ヴィ 信号及び電子回路のダイナミックレンジを減少させるための方法
AU2003240195A1 (en) * 2003-06-18 2005-01-04 Nokia Corporation Dynamic range control of an audio signal and method of its operation
JP4103846B2 (ja) * 2004-04-30 2008-06-18 ソニー株式会社 情報処理装置、音量制御方法、記録媒体、およびプログラム
CN1981433A (zh) * 2004-06-30 2007-06-13 皇家飞利浦电子股份有限公司 自动调整音频信号的音量的方法和系统
US8081777B2 (en) * 2006-03-21 2011-12-20 Fairchild Semiconductor Corporation Volume-based adaptive biasing
US20080013751A1 (en) * 2006-07-17 2008-01-17 Per Hiselius Volume dependent audio frequency gain profile
TWI311893B (en) * 2006-09-13 2009-07-01 Coretronic Corporatio Audio control method and acoustic processing system
US8135147B2 (en) * 2006-10-09 2012-03-13 Lg Electronics Inc. Method and device for adjusting audio volume level
JP4582117B2 (ja) * 2007-06-06 2010-11-17 ヤマハ株式会社 音量制御装置
JP2010034700A (ja) * 2008-07-25 2010-02-12 Yamaha Corp オーディオ信号処理装置、スピーカ装置およびテレビ
WO2010044439A1 (ja) * 2008-10-17 2010-04-22 シャープ株式会社 音声信号調整装置及び音声信号調整方法
BRPI0919880B1 (pt) * 2008-10-29 2020-03-03 Dolby International Ab Método e aparelho para prover proteção contra o ceifamento de sinal de um sinal de áudio derivado de dados de áudio digital e transcodificador
WO2010076215A1 (en) * 2008-12-29 2010-07-08 Arcelik Anonim Sirketi An audio equipment and a control method thereof
JP5012859B2 (ja) * 2009-07-03 2012-08-29 パナソニック株式会社 音量調整装置
JP5771774B2 (ja) * 2010-12-14 2015-09-02 パナソニックＩｐマネジメント株式会社 自動音量補正装置、音声転送装置及びインターホンシステム
EP2759057A2 (en) * 2011-09-22 2014-07-30 Earsoft Limited Dynamic range control
US9401685B2 (en) * 2012-06-08 2016-07-26 Apple Inc. Systems and methods for adjusting automatic gain control

Also Published As

Publication number Publication date
FR3031852B1 (fr) 2018-05-11
CN107408930A (zh) 2017-11-28
JP2023103276A (ja) 2023-07-26
JP2021078148A (ja) 2021-05-20
CN107408930B (zh) 2020-10-30
WO2016116453A1 (fr) 2016-07-28
BR112017015378B1 (pt) 2022-12-06
EP3248286B1 (fr) 2019-09-25
EP3248286A1 (fr) 2017-11-29
CA2974156A1 (fr) 2016-07-28
US10141905B2 (en) 2018-11-27
CA2974156C (fr) 2023-08-01
US20180097496A1 (en) 2018-04-05
KR20170139499A (ko) 2017-12-19
FR3031852A1 (fr) 2016-07-22
KR102509783B1 (ko) 2023-03-13
JP2018509031A (ja) 2018-03-29

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Legal Events

Date Code Title Description
B06U Preliminary requirement: requests with searches performed by other patent offices: procedure suspended [chapter 6.21 patent gazette]
B09A Decision: intention to grant [chapter 9.1 patent gazette]
B16A Patent or certificate of addition of invention granted [chapter 16.1 patent gazette]

Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 19/01/2016, OBSERVADAS AS CONDICOES LEGAIS