JP2005094777A5 - - Google Patents

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Publication number
JP2005094777A5
JP2005094777A5 JP2004272920A JP2004272920A JP2005094777A5 JP 2005094777 A5 JP2005094777 A5 JP 2005094777A5 JP 2004272920 A JP2004272920 A JP 2004272920A JP 2004272920 A JP2004272920 A JP 2004272920A JP 2005094777 A5 JP2005094777 A5 JP 2005094777A5
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JP
Japan
Prior art keywords
array
electroacoustic
electrical signal
signals
signal
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JP2004272920A
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JP4642418B2 (ja
JP2005094777A (ja
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Priority claimed from US10/665,845 external-priority patent/US7519188B2/en
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Publication of JP4642418B2 publication Critical patent/JP4642418B2/ja
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Claims (9)

  1. 電気音響変換方法であって、
    アレイ(304)の1対の電気音響変換器(302)に供給されるオーディオ電気信号を制御して、音量制御(508)または検出された信号レベル(1006)の関数として指向性および音響音量特性を達成して、前記アレイの電気音響変換器からの音響出力信号の相殺を減少させ、前記信号を制御することによって、前記特性の変化に伴って、前記アレイの放射音響パワー・スペクトルの変化を生じさせ、
    等化(502)を調節して、前記アレイの放射音響パワー・スペクトルの変化を補償する、
    ことを含む電気音響変換方法。
  2. 請求項1記載の方法において、前記音響パワー・スペクトルの変化の補償は、放射相対音響パワー・スペクトルを実質上均一に維持することを含む方法。
  3. 請求項1記載の方法において、前記制御は、より高い音響音量レベルに対して、前記オーディオ電気信号の1つの振幅を低下させる方法。
  4. 請求項1記載の方法において、前記オーディオ電気信号の制御は、限定された周波数範囲にわたって前記信号の1つのレベルを調節することを含む方法。
  5. 請求項1記載の方法において、前記オーディオ電気信号の制御は、ハイ・パス・フィルタ(612)において前記信号の1つを処理し、相補的オール・パス・フィルタ(614)において前記信号の他方を処理する方法。
  6. 電気音響変換装置であって、
    入力オーディオ電気信号を受ける入力端子と、
    アレイ(304)内の複数の電気音響変換器(302)と、
    前記電気音響変換器に結合される前記入力オーディオ信号から2つの関係する出力オーディオ電気信号(602,606)を発生し、音量制御(508)または検出された信号レベル(1006)の関数として所定の指向性および音響音量特性を達成して、前記アレイの電気音響変換器からの音響出力信号の相殺を減少させるように構成配置されている回路(504)、および前記信号の制御によって生ずる前記アレイの放射音響パワー・スペクトルの変化を補償するように調節される等化(502)と、
    を備えた電気音響変換装置。
  7. 請求項6記載の装置において、前記等化(502)はダイナミック・イコライザを備えている装置。
  8. 請求項7記載の装置において、前記ダイナミック・イコライザは、1対の信号処理経路(902,904)と、前記2つの経路上で処理される信号を合成するコンバイナ(914)と、を含む装置。
  9. 電気音響変換器アレイであって、
    関係する電気信号成分のソースと、
    前記関係する電気信号成分によってそれぞれ駆動される複数の電気音響変換器と、
    請求項6〜8のいずれかに記載の電気音響変換装置であって、前記関係する電気信号成分のソースが入力オーディオ電気信号を供給する電気音響変換装置と、
    を備えた電気音響変換器アレイ。
JP2004272920A 2003-09-18 2004-09-21 電気音響変換器 Expired - Fee Related JP4642418B2 (ja)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US10/665,845 US7519188B2 (en) 2003-09-18 2003-09-18 Electroacoustical transducing

Publications (3)

Publication Number Publication Date
JP2005094777A JP2005094777A (ja) 2005-04-07
JP2005094777A5 true JP2005094777A5 (ja) 2007-11-29
JP4642418B2 JP4642418B2 (ja) 2011-03-02

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Family Applications (1)

Application Number Title Priority Date Filing Date
JP2004272920A Expired - Fee Related JP4642418B2 (ja) 2003-09-18 2004-09-21 電気音響変換器

Country Status (6)

Country Link
US (1) US7519188B2 (ja)
EP (1) EP1517580B1 (ja)
JP (1) JP4642418B2 (ja)
CN (1) CN1599510B (ja)
DE (1) DE602004024016D1 (ja)
HK (1) HK1074323A1 (ja)

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