JP5266343B2 - 署名を生成する方法及び装置 - Google Patents
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- G10L25/00—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00
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Description
Claims (40)
- 音声信号の一部分を表わす署名を生成する方法であって、
音声信号の一部分に第1のウィンドウ関数を適用して第1の被ウィンドウ処理音声ブロックを作成するステップと、
前記音声信号の一部分と同じ部分に、前記第1のウィンドウ関数とは異なる第2のウィンドウ関数を適用して第2の被ウィンドウ処理音声ブロックを作成するステップと、
前記第1の被ウィンドウ処理音声ブロックにおける周波数帯域の第1の特徴を決定するステップと、
前記第2の被ウィンドウ処理音声ブロックにおける周波数帯域の第2の特徴を決定するステップと、
前記第1の特徴を前記第2の特徴と比較するステップと、
前記音声信号の前記一部分を表す署名ビットを、前記第1の特徴と前記第2の特徴の比較に基づいて割り当てるステップとを含む方法。 - 前記音声信号の前記一部分に前記第1のウィンドウ関数を適用して前記第1の被ウィンドウ処理音声ブロックを作成するステップと、前記音声信号の前記一部分に前記第2のウィンドウ関数を適用して前記第2の被ウィンドウ処理音声ブロックを作成するステップが、周波数領域処理して第1と第2の変換被ウィンドウ処理音声ブロックを作成するステップを含む、請求項1に記載の方法。
- 前記第1と第2の被ウィンドウ処理音声ブロックにおける前記周波数帯域の前記第1と第2の特徴を決定するステップが、前記第1と第2の変換被ウィンドウ処理音声ブロックを処理するステップを含む、請求項2に記載の方法。
- 前記音声信号は、無線音声信号である、請求項1に記載の方法。
- 前記音声信号は、デジタル・サンプリングにより取り込まれる、請求項4に記載の方法。
- 前記第1と第2のウィンドウ関数が、相補的関数を含む、請求項1に記載の方法。
- 前記第1のウィンドウ関数が、前記第1のウィンドウ関数の上端と下端で大きい振幅を有する、請求項6に記載の方法。
- 前記第2のウィンドウ関数が、前記第2のウィンドウ関数の上端と下端で小さい振幅を有する、請求項7に記載の方法。
- 前記第1のウィンドウ関数が、前記第1のウィンドウ関数の上端で大きい振幅と、前記第1のウィンドウ関数の下端で小さい振幅を有する、請求項6に記載の方法。
- 前記第2のウィンドウ関数が、前記第2のウィンドウ関数の上端で小さい振幅と、前記第2のウィンドウ関数の下端で大きい振幅を有する、請求項9に記載の方法。
- 前記第1のウィンドウ関数と前記第2のウィンドウ関数が、1組のウィンドウ関数から選択された、請求項1に記載の方法。
- 前記第1のウィンドウ関数と前記第2のウィンドウ関数が、前記1組のウィンドウ関数から任意に選択された、請求項11に記載の方法。
- 前記音声信号の前記一部分に前記第1のウィンドウ関数を適用するステップが、時間領域操作において前記第1のウィンドウ関数と前記音声信号の前記一部分を乗算するステップを含む、請求項1に記載の方法。
- 前記音声信号の前記一部分に前記第2のウィンドウ関数を適用するステップが、時間領域演算において前記第2のウィンドウ関数と前記音声信号の前記一部分を乗算するステップを含む、請求項13に記載の方法。
- 前記第1と第2の特徴が、第1と第2のエネルギーを含む、請求項1に記載の方法。
- 前記第1と第2の特徴を比較するステップが、第1と第2のエネルギーを減算するステップを含む、請求項15に記載の方法。
- 署名ビットを割り当てるステップが、前記第1と第2のエネルギーの減算の結果に基づいて署名ビット値を割り当てるステップを含む、請求項16に記載の方法。
- 前記第1と第2の被ウィンドウ処理音声ブロックのそれぞれにおける付加的特徴を決定するステップと、前記付加的特徴を使用して、前記音声信号の前記一部分を表す付加的ビットを決定するステップとを更に含む、請求項15記載の方法。
- 前記音声信号の前記一部分に第3のウィンドウ関数と第4のウィンドウ関数を適用して第3の被ウィンドウ処理音声ブロックと第4の被ウィンドウ処理音声ブロックを作成するステップと、
前記第3の被ウィンドウ処理音声ブロックと前記第4の被ウィンドウ処理音声ブロックを処理して前記音声信号の前記一部分を表す付加的ビットを決定するステップとを含む、請求項1に記載の方法。 - 前記処理するステップが、前記第3の被ウィンドウ処理音声ブロックの第3の特徴、前記第4の被ウィンドウ処理音声ブロックの第4の特徴、前記第1の特徴、又は前記第2の特徴のうちの1つ又は複数を比較するステップを含む、請求項19に記載の方法。
- 実行されたときに、コンピュータに、
音声信号の一部分に第1のウィンドウ関数を適用して第1の被ウィンドウ処理音声ブロックを作成するステップと、
前記音声信号の一部分と同じ部分に、前記第1のウィンドウ関数とは異なる第2のウィンドウ関数を適用して第2の被ウィンドウ処理音声ブロックを作成するステップと、
前記第1の被ウィンドウ処理音声ブロックにおける周波数帯域の第1の特徴を決定するステップと、
前記第2の被ウィンドウ処理音声ブロックにおける前記周波数帯域の第2の特徴を決定するステップと、
前記第1の特徴を第2の特徴と比較するステップと、
前記第1の特徴と前記第2の特徴の比較に基づいて、前記音声信号の前記一部分を表す署名ビットを割り当てるステップとを含む、コンピュータ可読命令を記憶するコンピュータ可読媒体。 - 前記音声信号の前記一部分に第1のウィンドウ関数を適用して前記第1の被ウィンドウ処理音声ブロックを作成し、前記音声信号の前記一部分に前記第2のウィンドウ関数を適用して前記第2の被ウィンドウ処理音声ブロックを作成するステップが、第1と第2の変換された被ウィンドウ処理音声ブロックを作成する周波数領域処理を含む、請求項21に記載のコンピュータ可読媒体。
- 前記第1と第2の被ウィンドウ処理音声ブロックの周波数帯域の前記第1と第2の特徴を決定するステップが、前記第1と第2の変換被ウィンドウ処理音声ブロックを処理するステップを含む、請求項22に記載のコンピュータ可読媒体。
- 前記第1と第2のウィンドウ関数が、相補的関数を含む、請求項21に記載のコンピュータ可読媒体。
- 前記音声信号の前記一部分に前記第1のウィンドウ関数を適用するステップが、時間領域操作において前記第1のウィンドウ関数と前記音声信号の前記一部分を乗算するステップを含む、請求項21に記載のコンピュータ可読媒体。
- 前記音声信号の前記一部分に前記第2のウィンドウ関数を適用するステップが、時間領域操作において前記第2のウィンドウ関数と前記音声信号の前記一部分を乗算するステップを含む、請求項25に記載のコンピュータ可読媒体。
- 前記第1と第2の特徴が、第1と第2のエネルギーを含む、請求項21に記載のコンピュータ可読媒体。
- 前記第1と第2の特徴を比較するステップが、第1と第2のエネルギーを減算するステップを含む、請求項27に記載のコンピュータ可読媒体。
- 署名ビットを割り当てるステップが、前記第1と第2のエネルギー前記減算の結果に基づいて署名ビット値を割り当てるステップ含む、請求項28に記載のコンピュータ可読媒体。
- 前記第1と第2の被ウィンドウ処理音声ブロックのそれぞれにおける付加的特徴を決定し、前記付加的特徴を使用して前記音声信号の前記一部分を表す付加的ビットを決定するステップを更に含む、請求項29に記載のコンピュータ可読媒体。
- 音声信号の一部分を表わす署名を生成する装置が、
音声信号の一部分に第1のウィンドウ関数を適用して第1の被ウィンドウ処理音声ブロックを作成し、前記音声信号の一部分と同じ部分に、前記第1のウィンドウ関数とは異なる第2のウィンドウ関数を適用して第2の被ウィンドウ処理音声ブロックを作成するウィンドウ処理器と、
前記第1の被ウィンドウ処理音声ブロックにおける周波数帯域の第1の特徴を決定しかつ前記第2の被ウィンドウ処理音声ブロックにおける周波数帯域の第2の特徴を決定する特徴決定器と、
前記第1の特徴を前記第2の特徴と比較する比較器と、
前記音声信号の前記一部分を表す署名ビットを、前記第1の特徴と第2の特徴の前記比較に基づいて割り当てる署名決定器とを含む装置。 - 前記ウィンドウ処理器が、周波数領域処理を使用して、前記音声信号の前記一部分に前記第1のウィンドウ関数を適用して前記第1の被ウィンドウ処理音声ブロックを作成しかつ前記音声信号の前記一部分に前記第2のウィンドウ関数を適用して前記第2の被ウィンドウ処理音声ブロックを作成して、第1と第2の変換被ウィンドウ処理音声ブロックを作成する、請求項31に記載の装置。
- 前記特徴決定器が、前記第1と第2の変換被ウィンドウ処理音声ブロックを処理することによって前記第1と第2の被ウィンドウ処理音声ブロックにおける前記周波数帯域の前記1と第2の特徴を決定する、請求項32に記載の装置。
- 前記第1と第2のウィンドウ関数が、相補的関数を含む,請求項31に記載の装置。
- 前記ウィンドウ処理器が、時間領域操作において前記第1のウィンドウ関数と前記音声信号の前記一部分を乗算することによって前記音声信号の一部分に前記第1のウィンドウ関数を適用するステップを含む、請求項34に記載の装置。
- 前記ウィンドウ処理器が、時間領域操作において前記第2のウィンドウ関数と前記音声信号の一部分を乗算することによって前記音声信号の前記一部分に前記第2のウィンドウ関数を適用する、請求項35に記載の装置。
- 前記第1と第2の特徴が、第1と第2のエネルギーを含む、請求項31に記載の装置。
- 前記比較器が、前記第1と第2のエネルギーを減算する、請求項37に記載の装置。
- 前記署名決定器が、前記第1と第2のエネルギーの前記減算の結果に基づいて署名ビット値を割り当てる、請求項38に記載の装置。
- 前記特徴決定器が、前記第1と第2の被ウィンドウ処理音声ブロックのそれぞれにおける付加的特徴を決定し、前記付加的特徴を使用して前記音声信号の前記一部分を表す付加的ビットを決定する、請求項39に記載の装置。
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US3399208P | 2008-03-05 | 2008-03-05 | |
US61/033,992 | 2008-03-05 | ||
PCT/US2008/082657 WO2009110932A1 (en) | 2008-03-05 | 2008-11-06 | Methods and apparatus for generating signatures |
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US (2) | US8600531B2 (ja) |
EP (1) | EP2263335B1 (ja) |
JP (1) | JP5266343B2 (ja) |
CN (2) | CN102007714B (ja) |
CA (1) | CA2717723C (ja) |
ES (1) | ES2512640T3 (ja) |
HK (1) | HK1155863A1 (ja) |
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CN101278568B (zh) | 2005-08-16 | 2010-12-15 | 尼尔森(美国)有限公司 | 显示装置开/关检测方法和设备 |
EP2132888A2 (en) | 2007-02-20 | 2009-12-16 | Nielsen Media Research, Inc. et al | Methods and apparatus for characterizing media |
US10489795B2 (en) * | 2007-04-23 | 2019-11-26 | The Nielsen Company (Us), Llc | Determining relative effectiveness of media content items |
EP2156583B1 (en) | 2007-05-02 | 2018-06-06 | The Nielsen Company (US), LLC | Methods and apparatus for generating signatures |
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