<script type="text/html" data-help-name="ui_audio">
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<p>Plays audio or text to speech (TTS) in the dashboard.</p>
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<p>To work the dashboard web page must be open.</p>
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<p>Expects <code>msg.payload</code> to contain a buffer of a <b>wav</b> or <b>mp3</b> file.</p>
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<p>If your browser has native support for Text-to-Speech then a <code>msg.payload</code>
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can also be a <b>string</b> to be read aloud.</p>
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<p>Optionally setting <code>msg.level</code> from 0 to 100 will change the volume from 0 to 100%. Default is 100%.
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In audio mode you can go up to 300, but you may get distortion.</p>
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<p>When a <code>msg.reset</code> is available with value <code>true</code>, then playback of the current audio fragment will be stopped.</p>
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<p>The <b>node status</b> reflects the current playback status:
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<ul>
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<li><b>started:</b> the audio fragment playback has been started.</li>
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<li><b>reset:</b> the audio fragment playback has been reset (i.e. stopped before completed).</li>
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</ul>
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As soon as the audio fragment playback is completed, the node status will be cleared automatically.</p>
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</script>
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