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+---
+title: AudioContext.sampleRate
+slug: Web/API/AudioContext/sampleRate
+translation_of: Web/API/BaseAudioContext/sampleRate
+---
+<p>{{ APIRef("Web Audio API") }}</p>
+
+<div>
+<p>{{ domxref("AudioContext") }}インターフェースの<code>sampleRate</code>プロパティは、このオーディオコンテキストの全てのノードで使われるサンプルレート(1秒あたりのサンプル数)を浮動小数点で返します。</p>
+</div>
+
+<h2 id="構文">構文</h2>
+
+<pre class="brush: js">var audioCtx = new AudioContext();
+var mySampleRate = audioCtx.sampleRate;</pre>
+
+<h3 id="値">値</h3>
+
+<p>浮動小数点</p>
+
+<h2 id="例">例</h2>
+
+<div class="note">
+<p><strong>注:</strong> 完全な実装の例は、<a class="external external-icon" href="https://github.com/mdn/">MDN Github repo</a>の<a class="external external-icon" href="https://github.com/mdn/panner-node">panner-node</a>などを参照してください。<code>audioCtx.sampleRate</code>をあなたのブラウザで使ってみてください。</p>
+</div>
+
+<pre class="brush: js;highlight[8]">var AudioContext = window.AudioContext || window.webkitAudioContext;
+var audioCtx = new AudioContext();
+// 古いwebkit/blinkブラウザではプレフィックスが必要です
+
+...
+
+console.log(audioCtx.sampleRate);
+</pre>
+
+<h2 id="仕様">仕様</h2>
+
+<table class="standard-table">
+ <tbody>
+  <tr>
+   <th scope="col">Specification</th>
+   <th scope="col">Status</th>
+   <th scope="col">Comment</th>
+  </tr>
+  <tr>
+   <td>{{SpecName('Web Audio API', '#widl-AudioContext-sampleRate', 'sampleRate')}}</td>
+   <td>{{Spec2('Web Audio API')}}</td>
+   <td> </td>
+  </tr>
+ </tbody>
+</table>
+
+<h2 id="ブラウザ互換性">ブラウザ互換性</h2>
+
+<div>{{CompatibilityTable}}</div>
+
+<div id="compat-desktop">
+<table class="compat-table">
+ <tbody>
+  <tr>
+   <th>Feature</th>
+   <th>Chrome</th>
+   <th>Firefox (Gecko)</th>
+   <th>Internet Explorer</th>
+   <th>Opera</th>
+   <th>Safari (WebKit)</th>
+  </tr>
+  <tr>
+   <td>Basic support</td>
+   <td>{{CompatChrome(10.0)}}{{property_prefix("webkit")}}</td>
+   <td>{{CompatGeckoDesktop(25.0)}} </td>
+   <td>{{CompatNo}}</td>
+   <td>15.0{{property_prefix("webkit")}}<br>
+    22 (unprefixed)</td>
+   <td>6.0{{property_prefix("webkit")}}</td>
+  </tr>
+ </tbody>
+</table>
+</div>
+
+<div id="compat-mobile">
+<table class="compat-table">
+ <tbody>
+  <tr>
+   <th>Feature</th>
+   <th>Android</th>
+   <th>Firefox Mobile (Gecko)</th>
+   <th>Firefox OS</th>
+   <th>IE Mobile</th>
+   <th>Opera Mobile</th>
+   <th>Safari Mobile</th>
+   <th>Chrome for Android</th>
+  </tr>
+  <tr>
+   <td>Basic support</td>
+   <td>{{CompatUnknown}}</td>
+   <td>26.0</td>
+   <td>1.2</td>
+   <td>{{CompatUnknown}}</td>
+   <td>{{CompatUnknown}}</td>
+   <td>{{CompatUnknown}}</td>
+   <td>33.0</td>
+  </tr>
+ </tbody>
+</table>
+</div>
+
+<h2 id="参考">参考</h2>
+
+<ul>
+ <li><a href="/en-US/docs/Web_Audio_API/Using_Web_Audio_API">Using the Web Audio API</a></li>
+</ul>