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+---
+title: SpeechSynthesisUtterance
+slug: Web/API/SpeechSynthesisUtterance
+translation_of: Web/API/SpeechSynthesisUtterance
+---
+<p>{{APIRef("Web Speech API")}}{{SeeCompatTable}}</p>
+
+<p>L'interface <strong><code>SpeechSynthesisUtterance</code></strong> de l'<a href="/en-US/docs/Web/API/Web_Speech_API">API Web Speech</a> représente une requète de synthèse vocale. Elle contient le contenu du service permettant de définir la façon dont elle sera lu (langue, hauteur et volume).</p>
+
+<h2 id="Constructor">Constructor</h2>
+
+<dl>
+ <dt>{{domxref("SpeechSynthesisUtterance.SpeechSynthesisUtterance()")}}</dt>
+ <dd>Retourne une nouvelle instance de l'objet <code>SpeechSynthesisUtterance</code>.</dd>
+</dl>
+
+<h2 id="Properties">Properties</h2>
+
+<p><em><code>SpeechSynthesisUtterance</code> hérite également des propriétés de son interface parente, {{domxref("EventTarget")}}.</em></p>
+
+<dl>
+ <dt>{{domxref("SpeechSynthesisUtterance.lang")}}</dt>
+ <dd>Gets and sets the language of the utterance.</dd>
+ <dt>{{domxref("SpeechSynthesisUtterance.pitch")}}</dt>
+ <dd>Gets and sets the pitch at which the utterance will be spoken at.</dd>
+ <dt>{{domxref("SpeechSynthesisUtterance.rate")}}</dt>
+ <dd>Gets and sets the speed at which the utterance will be spoken at.</dd>
+ <dt>{{domxref("SpeechSynthesisUtterance.text")}}</dt>
+ <dd>Gets and sets the text that will be synthesised when the utterance is spoken.</dd>
+ <dt>{{domxref("SpeechSynthesisUtterance.voice")}}</dt>
+ <dd>Gets and sets the voice that will be used to speak the utterance.</dd>
+ <dt>{{domxref("SpeechSynthesisUtterance.volume")}}</dt>
+ <dd>Gets and sets the volume that the utterance will be spoken at.</dd>
+</dl>
+
+<h3 id="Event_handlers">Event handlers</h3>
+
+<dl>
+ <dt>{{domxref("SpeechSynthesisUtterance.onboundary")}}</dt>
+ <dd>Fired when the spoken utterance reaches a word or sentence boundary.</dd>
+ <dt>{{domxref("SpeechSynthesisUtterance.onend")}}</dt>
+ <dd>Fired when the utterance has finished being spoken.</dd>
+ <dt>{{domxref("SpeechSynthesisUtterance.onerror")}}</dt>
+ <dd>Fired when an error occurs that prevents the utterance from being succesfully spoken.</dd>
+ <dt>{{domxref("SpeechSynthesisUtterance.onmark")}}</dt>
+ <dd>Fired when the spoken utterance reaches a named SSML "mark" tag.</dd>
+ <dt>{{domxref("SpeechSynthesisUtterance.onpause")}}</dt>
+ <dd>Fired when the utterance is paused part way through.</dd>
+ <dt>{{domxref("SpeechSynthesisUtterance.onresume")}}</dt>
+ <dd>Fired when a paused utterance is resumed.</dd>
+ <dt>{{domxref("SpeechSynthesisUtterance.onstart")}}</dt>
+ <dd>Fired when the utterance has begun to be spoken.</dd>
+</dl>
+
+<h2 id="Examples">Examples</h2>
+
+<p>Dans notre exemple basique de <a href="https://github.com/mdn/web-speech-api/tree/master/speak-easy-synthesis">démonstration de synthèse vocale</a>, nous commençons par récupérer une référence du controller SpeechSynthesis en utilisant <code>window.speechSynthesis</code>.<br>
+ Après avoir définit les variables nécessaires, nous récupérons une liste des voix disponibles en utilisant {{domxref("SpeechSynthesis.getVoices()")}} puis nous alimentons un menu avec celle-ci.<br>
+ L'utilisateur pourra ensuite choisir la voix qu'il souhaite.<br>
+ <br>
+ À l'intérieur du handler <code>inputForm.onsubmit</code> :</p>
+
+<ul>
+ <li>Nous stoppons la soumission du formulaire avec <a href="/en-US/docs/Web/API/Event/preventDefault">preventDefault()</a>;</li>
+ <li>Nous utilisons le constructeur {{domxref("SpeechSynthesisUtterance.SpeechSynthesisUtterance()", "constructor")}} pour créer une nouvelle instance contenant le texte de l'{{htmlelement("input")}};</li>
+ <li>Nous positionnons {{domxref("SpeechSynthesisUtterance.voice","voice")}} sur la voix sélectionnée dans le {{htmlelement("select")}};</li>
+ <li>Nous démarrons la synthèse vocale via la méthode {{domxref("SpeechSynthesis.speak()")}}</li>
+</ul>
+
+<pre class="brush: js">var synth = window.speechSynthesis;
+
+var inputForm = document.querySelector('form');
+var inputTxt = document.querySelector('input');
+var voiceSelect = document.querySelector('select');
+
+var voices = synth.getVoices();
+
+for(i = 0; i &lt; voices.length ; i++) {
+  var option = document.createElement('option');
+  option.textContent = voices[i].name + ' (' + voices[i].lang + ')';
+  option.setAttribute('data-lang', voices[i].lang);
+  option.setAttribute('data-name', voices[i].name);
+  voiceSelect.appendChild(option);
+}
+
+inputForm.onsubmit = function(event) {
+  event.preventDefault();
+
+  var utterThis = new SpeechSynthesisUtterance(inputTxt.value);
+  var selectedOption = voiceSelect.selectedOptions[0].getAttribute('data-name');
+  for(i = 0; i &lt; voices.length ; i++) {
+    if(voices[i].name === selectedOption) {
+      utterThis.voice = voices[i];
+    }
+  }
+  synth.speak(utterThis);
+  inputTxt.blur();
+}</pre>
+
+<h2 id="Specifications">Specifications</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 Speech API', '#utterance-attributes', 'SpeechSynthesisUtterance')}}</td>
+   <td>{{Spec2('Web Speech API')}}</td>
+   <td> </td>
+  </tr>
+ </tbody>
+</table>
+
+<h2 id="Browser_compatibility">Browser compatibility</h2>
+
+<div>{{CompatibilityTable}}</div>
+
+<div id="compat-desktop">
+<table class="compat-table">
+ <tbody>
+  <tr>
+   <th>Feature</th>
+   <th>Chrome</th>
+   <th>Edge</th>
+   <th>Firefox (Gecko)</th>
+   <th>Internet Explorer</th>
+   <th>Opera</th>
+   <th>Safari (WebKit)</th>
+  </tr>
+  <tr>
+   <td>Basic support</td>
+   <td>{{CompatChrome(33)}}</td>
+   <td>{{CompatVersionUnknown}}</td>
+   <td>{{CompatGeckoDesktop(49)}}</td>
+   <td>{{CompatNo}}</td>
+   <td>{{CompatVersionUnknown}}</td>
+   <td>7</td>
+  </tr>
+ </tbody>
+</table>
+</div>
+
+<div id="compat-mobile">
+<table class="compat-table">
+ <tbody>
+  <tr>
+   <th>Feature</th>
+   <th>Android</th>
+   <th>Chrome</th>
+   <th>Edge</th>
+   <th>Firefox Mobile (Gecko)</th>
+   <th>Firefox OS</th>
+   <th>IE Phone</th>
+   <th>Opera Mobile</th>
+   <th>Safari Mobile</th>
+  </tr>
+  <tr>
+   <td>Basic support</td>
+   <td>{{CompatVersionUnknown}}</td>
+   <td>{{CompatVersionUnknown}}</td>
+   <td>{{CompatVersionUnknown}}</td>
+   <td>{{CompatNo}}</td>
+   <td>2.0</td>
+   <td>{{CompatNo}}</td>
+   <td>{{CompatNo}}</td>
+   <td>7.1</td>
+  </tr>
+ </tbody>
+</table>
+</div>
+
+<h2 id="See_also">See also</h2>
+
+<ul>
+ <li><a href="/en-US/docs/Web/API/Web_Speech_API">Web Speech API</a></li>
+</ul>