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----
-title: SpeechRecognition.onspeechstart
-slug: Web/API/SpeechRecognition/onspeechstart
-tags:
-  - API
-  - Experimental
-  - Property
-  - Reference
-  - SpeechRecognition
-  - Web Speech API
-  - onspeechstart
-  - recognition
-  - speech
-translation_of: Web/API/SpeechRecognition/onspeechstart
----
-<div>{{APIRef("Web Speech API")}}{{SeeCompatTable}}</div>
-
-<p>{{domxref("SpeechRecognition")}} インターフェイスの <strong><code>onspeechstart</code></strong> プロパティは、認識できる音声が検出できた時に(<code><a href="/ja/docs/Web/API/SpeechRecognition/speechstart_event">speechstart</a></code> イベントが発生した時)、実行されるイベントハンドラーになります。</p>
-
-<h2 id="Syntax" name="Syntax">構文</h2>
-
-<pre class="syntaxbox">mySpeechRecognition.onspeechstart = function() { ... };
-</pre>
-
-<h2 id="Examples" name="Examples">例</h2>
-
-<pre class="brush: js">recognition.onspeechstart = function() {
-  console.log('音声が検出できました。');
-}
-</pre>
-
-<h2 id="Specifications" name="Specifications">仕様</h2>
-
-<table class="standard-table">
- <tbody>
-  <tr>
-   <th scope="col">仕様</th>
-   <th scope="col">状態</th>
-   <th scope="col">コメント</th>
-  </tr>
-  <tr>
-   <td>{{SpecName('Web Speech API', '#dfn-onspeechstart', 'onspeechstart')}}</td>
-   <td>{{Spec2('Web Speech API')}}</td>
-   <td></td>
-  </tr>
- </tbody>
-</table>
-
-<h2 id="Browser_compatibility" name="Browser_compatibility">ブラウザー実装状況</h2>
-
-<div>
-
-
-<p>{{Compat("api.SpeechRecognition.onspeechstart")}}</p>
-</div>
-
-<h2 id="See_also" name="See_also">関連情報</h2>
-
-<ul>
- <li><a href="/ja/docs/Web/API/Web_Speech_API">Web Speech API</a></li>
-</ul>