JP2013527499A - 音質改善のためのユーザ別の雑音抑圧 - Google Patents
音質改善のためのユーザ別の雑音抑圧 Download PDFInfo
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- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
- G10L21/00—Processing of the speech or voice signal 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
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- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
- G10L21/00—Processing of the speech or voice signal 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
- G10L21/0208—Noise filtering
Abstract
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Claims (25)
- 電子デバイスの音声関連機能の使用時に、前記電子デバイスにおいてユーザの音声を含むオーディオ信号を受信するステップと、
前記電子デバイスを使用して、ユーザ別雑音抑圧パラメータに少なくとも一部基づいて、前記ユーザの音声を実質的に維持しながら前記オーディオ信号の中の雑音を抑圧するステップと、
を有し、
前記ユーザ別雑音抑圧パラメータは、ユーザの雑音抑圧の好み、もしくはユーザ音声プロファイル、またはこれらの組み合わせに少なくとも一部基づいていることを特徴とする方法。 - 前記ユーザの雑音抑圧の好みは、ユーザ雑音抑圧トレーニングシーケンスに少なくとも一部基づいていることを特徴とする請求項1に記載の方法。
- 前記ユーザ雑音抑圧トレーニングシーケンスは、雑音抑圧パラメータがテストオーディオ信号にテストされ、前記ユーザに再生された後に、前記電子デバイスにおいてユーザの好ましい雑音パラメータの選択を受け付けるステップを含むことを特徴とする請求項2に記載の方法。
- 前記ユーザ雑音抑圧トレーニングシーケンスは、ユーザ音声サンプルおよび少なくとも1つの妨害刺激を含むテストオーディオ信号に適用される、テスト雑音抑圧パラメータをテストするステップを有することを特徴とする請求項2に記載の方法。
- 前記ユーザの雑音抑圧の好みは、ユーザ選択雑音抑圧設定に少なくとも一部基づくことを特徴とする請求項1に記載の方法。
- 前記ユーザ選択雑音抑圧設定は、雑音抑圧強度設定を含むことを特徴とする請求項5に記載の方法。
- 前記ユーザ選択雑音抑圧設定は、前記電子デバイスの前記音声関連機能の使用中に、リアルタイムにユーザが選択可能であることを特徴とする請求項5に記載の方法。
- 前記ユーザ音声プロファイルに関係している周波数を増幅することによって前記ユーザの音声を少なくとも一部を実質的に維持しながら、前記ユーザ別雑音抑圧パラメータによって前記オーディオ信号の中の雑音を抑圧することを特徴とする請求項1に記載の方法。
- 前記ユーザ音声プロファイルに関係していない周波数を抑圧することによって前記ユーザの音声を少なくとも一部を実質的に維持しながら、前記ユーザ別雑音抑圧パラメータよって前記オーディオ信号の中の雑音を抑圧することを特徴とする請求項1に記載の方法。
- 有形であり、マシンで読み取り可能であり、かつプロセッサで実行するための命令が符号化されている1つ以上の記憶媒体を備え、前記命令は、
ユーザ音声サンプルおよび少なくとも1つの妨害刺激を含むテストオーディオ信号を決定するための命令と、
第1の雑音抑圧パラメータに少なくとも一部基づいて、前記テストオーディオ信号に雑音抑圧を適用して、第1の雑音抑圧オーディオ信号を取得するための命令と、
前記第1の雑音抑圧オーディオ信号をスピーカに出力するための命令と、
第2の雑音抑圧パラメータに少なくとも一部基づいて、前記テストオーディオ信号に雑音抑圧を適用して、第2の雑音抑圧オーディオ信号を取得するための命令と、
前記第2の雑音抑圧オーディオ信号を前記スピーカに出力するための命令と、
ユーザの好みが前記第1の雑音抑圧オーディオ信号であるか前記第2の雑音抑圧オーディオ信号であるかの指示を取得するための命令と、
前記ユーザの好みが前記第1の雑音抑圧信号であるか前記第2の雑音抑圧信号であるかの指示に応じて、前記第1の雑音抑圧パラメータ、もしくは前記第2の雑音抑圧パラメータ、またはこれらの組み合わせに少なくとも一部基づいて、前記電子デバイスの音声関連機能の使用時に雑音を抑圧するためのユーザ別雑音抑圧パラメータを決定するための命令と、
を含むことを特徴とする装置。 - 前記テストオーディオ信号を決定するための命令は、前記妨害刺激が前記スピーカから音を出して再生されている間に、マイクロホンを使用して前記ユーザ音声サンプルを記録するための命令を含むことを特徴とする請求項10に記載の装置。
- 前記テストオーディオ信号を決定するための命令は、前記妨害刺激が別のデバイスで音を出して再生されている間に、マイクロホンを使用して前記ユーザ音声サンプルを記録するための命令を含むことを特徴とする請求項10に記載の装置。
- 前記テストオーディオ信号を決定するための命令は、マイクロホンを使用して前記ユーザ音声サンプルを記録し、前記ユーザ音声サンプルを前記妨害刺激と電子的に混合するための命令を含むことを特徴とする請求項10に記載の装置。
- 第3の雑音抑圧パラメータに少なくとも一部基づいて、前記テストオーディオ信号に雑音抑圧を適用して、第3の雑音抑圧オーディオ信号を取得するための命令と、
前記第3の雑音抑圧オーディオ信号を前記スピーカに出力するための命令と、
第4の雑音抑圧パラメータに少なくとも一部基づいて、前記テストオーディオ信号に雑音抑圧を適用して、第4の雑音抑圧オーディオ信号を取得するための命令と、
前記第4の雑音抑圧オーディオ信号を前記スピーカに出力するための命令と、
ユーザの好みが前記第3の雑音抑圧オーディオ信号であるか前記第4の雑音抑圧オーディオ信号であるかの指示を取得するための命令と、
前記ユーザの好みが前記第3の雑音抑圧オーディオ信号であるか前記第4の雑音抑圧オーディオ信号であるかの指示に応じて、前記第1の雑音抑圧パラメータ、前記第2の雑音抑圧パラメータ、前記第3の雑音抑圧パラメータ、もしくは前記第4の雑音抑圧パラメータ、またはこれらの組み合わせに少なくとも一部基づいて、ユーザ別雑音抑圧パラメータを決定するための命令と
を含むことを特徴とする請求項10に記載の装置。 - 前記ユーザの好みが前記第1の雑音抑圧オーディオ信号か前記第2の雑音抑圧オーディオ信号であるかに少なくとも一部基づいて、前記第3の雑音抑圧パラメータおよび前記第4の雑音抑圧パラメータを決定する命令を含むことを特徴とする請求項14に記載の装置。
- 電子デバイスであって、
ユーザの音声および周囲音を含むオーディオ信号を取得するマイクロホンと、
ユーザ別および状況固有雑音抑圧パラメータに少なくとも一部基づいて、前記オーディオ信号に雑音抑圧を適用して、前記オーディオ信号の中の前記周囲音を抑圧するように構成された雑音抑圧回路と、
ユーザ音声サンプルおよび複数の妨害刺激に適用された雑音抑圧パラメータのテストに少なくとも一部基づいて決定された、複数の雑音抑圧パラメータを記憶するように構成されたメモリと、
前記電子デバイスの現在の使用状況を判定し、前記複数の雑音抑圧パラメータの中から少なくとも1つのパラメータを選択することによって、前記ユーザ別および状況別の雑音抑圧パラメータを前記雑音抑圧回路に提供するデータ処理回路と、
を有し、
前記複数の雑音抑圧パラメータの中の前記少なくとも1つのパラメータは、前記ユーザ音声サンプルおよび前記複数の妨害刺激の中の少なくとも1つの妨害刺激に適用された、雑音抑圧パラメータのテストに少なくとも一部基づいて決定されたものであり、前記複数の妨害刺激の中の前記少なくとも1つの妨害刺激は、前記現在の使用状況に関係していることを特徴とする電子デバイス。 - 前記データ処理回路は、前記オーディオ信号の中の前記周囲音を分析することによって前記電子デバイスの前記現在の使用状況を判定し、前記複数の妨害刺激のどれが前記周囲音に似ているかを判定することによって、前記複数の妨害刺激の中から、前記現在の使用状況に関係している前記少なくとも1つの妨害刺激を決定することを特徴とする請求項16に記載の電子デバイス。
- 前記データ処理回路は、
前記電子デバイスの内部クロックからの日付もしくは時刻、またはこれらの組み合わせ、
前記電子デバイスの位置検出回路からの位置、
前記電子デバイスの画像キャプチャ回路からの周囲の光量、
前記電子デバイスの動き検出回路からの前記電子デバイスの動き、
別の電子デバイスへの接続、または、
前記マイクロホンからの前記周囲音の音量、
あるいは、これらの任意の組み合わせ
に少なくとも一部基づいて、前記電子デバイスの前記現在の使用状況を決定し、
前記データ処理回路は、前記複数の妨害刺激のどれが前記判定された使用状況において予想される周囲音に似ているかを判定することによって、前記複数の妨害刺激の中から、前記現在の使用状況に関係している少なくとも1つの妨害刺激を決定する
ことを特徴とする請求項16に記載の電子デバイス。 - ユーザの音声および周囲音を含むオーディオ信号を取得するマイクロホンと、
ユーザ別雑音抑圧パラメータに少なくとも一部基づいて、前記オーディオ信号に雑音抑圧を適用して、前記オーディオ信号の中の前記周囲音を抑圧する雑音抑圧回路と、
前記ユーザ別雑音抑圧パラメータを提供するデータ処理回路であって、前記ユーザの音声に対応付けられているユーザ音声プロファイルに少なくとも一部基づいて、前記ユーザ別雑音抑圧パラメータを決定するデータ処理回路と
を有することを特徴とする電子デバイス。 - 前記データ処理回路は、ユーザ音声サンプルに少なくとも一部基づいて、前記ユーザ音声プロファイルを決定し、前記マイクロホンは、前記電子デバイスの起動期間中に前記ユーザ音声サンプルを取得することを特徴とする請求項19に記載の電子デバイス。
- 前記データ処理回路は、ユーザ音声サンプルに少なくとも一部基づいて、前記ユーザ音声プロファイルを決定し、前記マイクロホンは、前記電子デバイスの音声関連機能の使用中に取得される、他のオーディオ信号の信号対雑音比を監視し、前記他のオーディオ信号の前記信号対雑音比が閾値を超えるとき、前記他のオーディオ信号を記録することによって、前記ユーザ音声サンプルを取得することを特徴とする請求項19に記載の電子デバイス。
- 前記データ処理回路は、前記ユーザの音声が既知のユーザに一致するかどうかを判定し、前記ユーザの音声が前記既知のユーザに一致するとき、前記ユーザの音声に対応付けられている前記ユーザ音声プロファイルを呼び出すことを特徴とする請求項19に記載の電子デバイス。
- 前記データ処理回路は、前記ユーザの音声が既知のユーザに一致するかどうかを判定し、前記ユーザの音声が前記既知のユーザに一致しないとき、ユーザ音声サンプルを取得し、前記ユーザ音声サンプルに少なくとも一部基づいて前記ユーザ音声プロファイルを決定することによって、前記ユーザの音声に対応付けられた前記ユーザ音声プロファイルを決定することを特徴とする請求項19に記載の電子デバイス。
- 第1の電子デバイスであって、該第1の電子デバイスに関係しているマイクロホンから第1のユーザの音声信号を取得し、前記第1のユーザの音声信号を第2の電子デバイスに提供し、前記第2の電子デバイスから第2のユーザの雑音抑圧パラメータを受信する第1の電子デバイスを含み、前記第1の電子デバイスは、前記第2のユーザの雑音抑圧パラメータに少なくとも一部基づいて、前記第1のユーザの音声信号に雑音抑圧を適用してから、前記第1のユーザの音声信号を前記第2の電子デバイスに提供することを特徴とするシステム。
- 前記第1の電子デバイスは、第1のユーザの雑音抑圧パラメータを前記第2の電子デバイスに提供し、前記第2の電子デバイスから第2のユーザの音声信号を受信し、前記第2のユーザの音声信号は、この信号に、前記第1のユーザの雑音抑圧パラメータに少なくとも一部基づいて雑音抑圧を適用されてから、前記第1の電子デバイスで受信されることを特徴とする請求項24に記載のシステム。
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