JP7351937B2 - コマンドキーワード調整を伴うネットワークマイクロフォンデバイス - Google Patents
コマンドキーワード調整を伴うネットワークマイクロフォンデバイス Download PDFInfo
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Description
本明細書に記載の例示的な技術は、コマンドを検出するように構成されたウェイクワードエンジンを含む。例示的なネットワークマイクロフォンデバイス(「NMD」)は、音声アシスタントサービス(「VAS」)を呼び出すウェイクワードエンジンと並行するそのようなウェイクワードエンジンを実装し得る。VASウェイクワードエンジンがノンスのウェイクワードに関与し得る一方で、コマンドキーワードエンジンは、「再生」または「スキップ」などのコマンドで呼び出される。
図1Aおよび図1Bは、ここに開示された1つまたは複数の実施形態が実施され得るメディア再生システム100(または「MPS100」)の構成例を示す。まず、図1Aを参照すると、図示されているMPS100は、複数の部屋と空間を有する例示的な家庭環境に関連付けられており、これらは総称して「家庭環境」、「スマートホーム」、または「環境101」とも言う。環境101は、マスターバスルーム101a、マスターベッドルーム101b(ここでは「ニックの部屋」と呼ぶ)、セカンドベッドルーム101c、ファミリールームまたはデン101d、オフィス101e、リビングルーム101f、ダイニングルーム101g、キッチン101h、および屋外パティオ101iを含み、いくつかの部屋、スペース、および/または再生ゾーンを有する家庭からなる。以下では、家庭環境の下での特定の実施形態や例を説明するが、ここで説明する技術は他のタイプの環境でも実施可能である。いくつかの実施形態では、例えば、MPS100は、1つ以上の商業環境(例えば、レストラン、モール、空港、ホテル、小売店などの店舗)、1つ以上の車両(例えば、スポーツユーティリティビークル、バス、車、船、ボート、飛行機)、複数の環境(例えば、家庭環境と車両環境の組み合わせ)、および/または、マルチゾーンオーディオが望ましいと思われる別の適切な環境で実施することができる。
図2Aは、図1Aおよび図1BのMPS100の再生装置102の1つの特定の側面を示す機能ブロック図である。図示されているように、再生装置102は、それぞれが以下でさらに詳細に説明される様々な構成要素を含み、再生装置102の様々な構成要素は、システムバス、通信ネットワーク、又は何らかの他の接続機構を介して、互いに動作可能に組合せされている。図2Aの図示された例では、再生装置102は、図1Aに示されたNMD103の一例の様に、NMDの機能をサポートするコンポーネントを含むため、「NMD搭載」再生装置と呼ぶことがある。
図3A~3Eは、再生装置の例示的な構成を示す。最初に図3Aを参照すると、いくつかの例示的な実施形態では、単一の再生装置がゾーンに属してもよい。例えば、パティオの再生装置102c(図1A)は、ゾーンAに属していてもよい。以下に説明するいくつかの実施形態では、複数の再生機器を「結合(bond)」して「結合ペア」を形成し、それらが一緒になって1つのゾーンを形成することができる。例えば、図3Aで「ベッド1」と名付けられた再生装置102f(図1A)と、図3Aで「ベッド2」と名付けられた再生装置102g(図1A)とを結合して、ゾーンBを形成してもよい。結合された再生装置のそれぞれは、異なる再生責任(例えば、チャンネル責任)を持つ。後述する別の実施形態では、複数の再生装置を統合して1つのゾーンを形成することができる。統合された再生装置102d、102mには、特に異なる再生責任が割り当てられていなくてもよい。すなわち、統合された再生装置102d、102mは、同期してオーディオコンテンツを再生することは勿論であるが、それぞれが統合されていない場合と同様にオーディオコンテンツを再生してもよい。
図4は、図1AのMPS100のコントローラデバイス104のうちの選択された1つの例を示す機能ブロック図である。このようなコントローラデバイスは、ここでは「コントロールデバイス」または「コントローラ」と呼ぶ。図4に示すコントローラデバイスは、プロセッサ412、プログラムソフトウェア414を格納するメモリ413、少なくとも1つのネットワークインターフェース424、および1つまたは複数のマイクロフォン422など、上述したネットワークデバイスの特定のコンポーネントと一般的に類似したコンポーネントを含む。一例として、コントローラデバイスは、MPS100の専用コントローラであってもよい。別の例では、コントローラデバイスは、例えば、iPhone(登録商標)、iPad(登録商標)、その他のスマートフォン、タブレット、ネットワークデバイス(例えば、PCやMac(登録商標)などのネットワークコンピュータ)など、メディア再生システムのコントローラーアプリケーションソフトウェアがインストールされているネットワークデバイスであってもよい。
ソース領域548内のオーディオソースは、選択された再生ゾーンまたはゾーングループによってオーディオコンテンツが取得され、再生され得るオーディオコンテンツソースである。ゾーンまたはゾーングループ内の1つまたは複数の再生装置は、利用可能なさまざまなオーディオコンテンツソースからオーディオコンテンツを(例えば、オーディオコンテンツに対応するURIまたはURLに従って)再生のために取得するように構成されている。ある例では、オーディオコンテンツは、再生装置によって、対応するオーディオコンテンツソースから直接(例えば、ラインイン接続を介して)取得され得る。別の例では、オーディオコンテンツは、1つまたは複数の他の再生装置またはネットワーク装置を介してネットワーク上の再生装置に提供される。以下で詳しく説明するように、ある実施形態では、オーディオコンテンツは、1つまたは複数のメディアコンテンツサービスによって提供され得る。
図7Aおよび図7Bは、本開示の実施形態に従って構成されたNMD703aおよびNMD703の態様を示す機能ブロック図である。NMD703aおよびNMD703bは、NMD703と総称される。NMD703は、NMD103と概ね同様であってもよく、同様のコンポーネントを含んでもよい。以下でより詳細に説明するように、NMD703a(図7A)は、音声入力を表すデータを音声アシスタントサービスに必ずしも送信することなく、特定の音声入力をローカルで処理するように構成される。しかしながら、NMD703aは、音声アシスタントサービスを使用して他の音声入力を処理するようにも構成されている。NMD703b(図7B)は、音声アシスタントサービスを使用して音声入力を処理するように構成されており、ローカルNLUまたはコマンドキーワードの検出が制限されていてもいなくてもよい。
図12は、コマンドキーワードイベントに基づいて第1の再生コマンドを実行するための例示的な方法1200を示すフロー図である。方法1100は、NMD703a(図7A)の特徴を含むことができるNMD103s(図1A)などのネットワークマイクロフォンデバイスよって実行することができる。いくつかの実装形態では、NMDは、再生デバイス102r(図1G)によって示されるように、再生デバイスの中に実装される。
図15A、図15B、図15C、および図15Dは、本開示の態様に従って構成された例示的なNMDからの例示的な入力および出力を示す。
以上の説明では、とりわけ、ハードウェア上で実行されるファームウェアおよび/またはソフトウェアを含む、さまざまな例示的なシステム、方法、装置、および製造品を開示した。上記の説明は単なる例示であり、限定的なものと解されるべきではない。例えば、ファームウェア、ハードウェア、および/またはソフトウェアの側面またはコンポーネントのいずれかまたはすべてが、ハードウェアのみ、ソフトウェアのみ、ファームウェアのみ、またはハードウェア、ソフトウェア、および/またはファームウェアの任意の組み合わせで具現化できることが企図されている。したがって、これらの例は、そのようなシステム、方法、装置、および製造品を実装する唯一の方法ではない。
Claims (15)
- 音を検出するように構成された少なくとも1つのマイクロフォンと、前記少なくとも1つのマイクロフォンによって検出された前記音を表す入力サウンドデータを受信するように構成された第1および第2のウェイクワードエンジンとを備える再生デバイスによって実行されるべき方法であって、
前記第1のウェイクワードエンジンが、前記入力サウンドデータ内において音声アシスタントサービス(VAS)ウェイクワードを検出したとき、前記再生デバイスにより、前記少なくとも1つのマイクロフォンで検出された前記音を表すサウンドデータを、VASの1つ以上のサーバに向かってストリーミングさせるように作用する、VASウェイクワードイベントを生成する様に構成され、前記方法は、
前記第2のウェイクワードエンジンにより、前記サウンドデータ内の複数のコマンドワードのうちの第1のコマンドワードを検出すること、ここで、前記複数のコマンドワードの各々は、種々の再生コマンドに対応する、
前記検出された第1のコマンドワードに対応する1つ以上の再生条件が満たされていると判定された場合に、前記第2のウェイクワードエンジンにより、前記検出された第1のコマンドワードに対応するコマンドワードイベントを生成すること、および
前記コマンドワードイベントに応答して、前記第1のコマンドワードに対応する第1の再生コマンドを実行すること、を含む、方法。 - 前記再生デバイスは、前記第1のコマンドワードに対応する前記1つ以上の再生条件が満たされたときに第1状態に移行し、前記第1のコマンドワードに対応する前記1つ以上の再生条件のうちの少なくとも1つの再生条件が満たされていないときに第2状態に移行するように構成された状態機械をさらに備え、前記第1のコマンドワードに対応する前記1つ又はそれ以上の再生条件が満たされていると判定することは、前記状態機械が前記第1状態にあると判定することを含む、請求項1に記載の方法。
- 前記再生デバイスは、前記複数のコマンドワードの各コマンドワードに対応する追加の状態機械をさらに備え、各追加の状態機械は、前記それぞれのコマンドワードに対応する1つ以上の再生条件が満たされたときに前記第1状態に移行し、前記それぞれのコマンドワードに対応する前記1つ以上の再生条件の少なくとも1つの再生条件が満たされないときに第2状態に移行するように構成される、請求項2に記載の方法。
- 前記検出された第1のコマンドワードに対応する1つ以上の再生条件のうちの少なくとも1つの再生条件が満たされていないと判定された場合、前記検出された第1のコマンドワードに対応するコマンドワードイベントの生成を抑制することをさらに含む、請求項1から3のいずれかに記載の方法。
- 前記少なくとも1つのマイクロフォンによって検出された音を表すサウンドデータをバッファに格納すること、
前記第1のウェイクワードエンジンが第1のVASウェイクワードを検出したときに、前記第1のウェイクワードエンジンにより、前記検出された第1のVASウェイクワードに対応するVASウェイクワードイベントを生成すること、および
前記第1のコマンドワードに対応する前記コマンドワードイベントに応答して、ネットワークインターフェースを介して、前記音声アシスタントサービスの前記1つ以上のサーバに、前記バッファされたサウンドデータの一部であって、(i)前記第1のVASウェイクワードに先行する所定時間分の前記バッファされたサウンドデータと、(ii)前記第1のVASウェイクワードの後に続く音声を表す、バッファされたサウンドデータとを、ストリーミングすることをさらに含む、請求項1から4のいずれかに記載の方法。 - 前記再生デバイスは、前記少なくとも1つのマイクロフォンによって検出された前記音を表す入力サウンドデータを受信するように構成された第3のウェイクワードエンジンをさらに備え、
前記方法は、更に、
前記第3のウェイクワードエンジンにより、前記第3のウェイクワードエンジンによってサポートされる複数のオーディオサービスウェイクワードのうちの特定のストリーミングオーディオサービスウェイクワードを検出すること、ここで複数のオーディオサービスウェイクワードは、それぞれのストリーミングオーディオサービスコマンドに対応する、
前記特定のストリーミングオーディオサービスウェイクワードに対応する1つ以上のストリーミングオーディオサービス条件が満たされていると判定された場合に、
前記第3のウェイクワードエンジンにより、前記特定のストリーミングオーディオサービスウェイクワードに対応するストリーミングオーディオサービスウェイクワードイベントを生成すること、および
前記ストリーミングオーディオサービスウェイクワードイベントに応答して、前記特定のストリーミングオーディオサービスウェイクワードに対応する特定のストリーミングオーディオサービスコマンドを実行することを含む、請求項1から5のいずれかに記載の方法。 - サウンドデータは、第1の音声入力であり、第1の音声入力は、前記第1のコマンドワードおよび第1の音声発話を含み、
前記方法は、
前記コマンドワードイベントに応答して、ローカル自然言語ユニット(NLU)を介して、前記第1の音声発話が、所定のキーワードのライブラリからの少なくとも1つのキーワードを含むかどうかを判定することをさらに含み、
前記第1の音声発話が1つ以上の特定のキーワードを含むときに、前記第1の再生コマンドを実行することは、前記第1の音声発話内の前記1つ以上の特定のキーワードに対応する1つ以上のパラメータに従って前記第1の再生コマンドを実行することを含む、請求項1から6のいずれかに記載の方法。 - 前記第1の音声発話が、前記所定のキーワードのライブラリからの少なくとも1つのキーワードを含まない場合、
音声アシスタントサービスの1つ以上のサーバで処理されるために、音声アシスタントサービスの1つ以上のサーバに第1の音声入力を表すサウンドデータをストリーミングすること、および
前記音声アシスタントサービスへの第2の音声入力のための音声プロンプトを再生し、
音声アシスタントサービスの1つ以上のサーバで処理されるために、音声アシスタントサービスの1つ以上のサーバに第2の音声入力を表すサウンドデータをストリーミングすること、および
1つ以上のデフォルトのパラメータに従って第1の再生コマンドを実行することをさらに含む、請求項7に記載の方法。 - 1つ以上の特定のキーワードのうちの第1のキーワードは、メディア再生システムの第1のゾーンに対応するゾーン名を表し、
前記1つ以上のパラメータに従って前記第1の再生コマンドを実行することは、前記第1のゾーンにおいて前記第1の再生コマンドを実行するための1つ以上の命令を送信することを含む、請求項8に記載の方法。 - 所定のキーワードのライブラリを、メディア再生システム内のそれぞれのゾーンに対応するゾーン名で充足すること、ここで各ゾーンが1つ以上のそれぞれの再生デバイスを備える、をさらに含み、
所定のキーワードのライブラリには、前記メディア再生システムの第1のゾーンに対応するゾーン名が充足される、請求項7から9のいずれか一項に記載の方法。 - ネットワークインターフェースを介して、ローカルエリアネットワークに接続されたスマートホームデバイスを検出すること、および
前記ローカルエリアネットワークで検出されたそれぞれのスマートホームデバイスに対応する名前で前記所定のキーワードのライブラリを充足すること
をさらに含む、請求項7から10のいずれか一項に記載の方法。 - メディア再生システムが登録されている前記1つ以上のユーザプロファイルによってお気に入りとして指定されたプレイリストに対応する名前を、所定のキーワードのライブラリに充足することをさらに含む、請求項7から11のいずれか一項に記載の方法。
- 前記第1の再生コマンドが所与のパラメータを必要とすると判定すること、
前記所与のパラメータに対応するキーワードを含む第2の音声入力を提供するために音声プロンプトを再生すること、ここで、前記第2の音声入力は第2の音声発話を含む、
前記ローカルNLUを介して、前記第2の音声発話が前記所与のパラメータに対応する前記キーワードを含むかどうかを判定すること、および
前記第2の音声発話が前記所与のパラメータに対応する前記キーワードを含む場合、所与のパラメータに従って前記第1の再生コマンドを実行すること、をさらに含む、請求項7から12のいずれか一項に記載の方法。 - 請求項1から13のいずれかに記載の方法を、再生デバイスに実行させるために1つ以上のプロセッサによって実行可能な命令を格納した、非一時的コンピュータ可読媒体。
- 再生デバイスであって、
ネットワークインターフェース、
1つ以上のプロセッサ、
音を検出するように構成された少なくとも1つのマイクロフォン、
少なくとも1つのスピーカ、
第1および第2のウェイクワードエンジン、および
前記1つ以上のプロセッサによって実行可能な命令が格納され、前記再生デバイスに請求項1から13のいずれかに記載の方法を実行させるデータストレージを含む、再生デバイス。
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