muk_web/muk_web_preview_audio/static/src/xml/audio.xml

<?xml version="1.0" encoding="UTF-8"?>

<!--     
	Copyright (C) 2017 MuK IT GmbH
	
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU Affero General Public License as
    published by the Free Software Foundation, either version 3 of the
    License, or (at your option) any later version.

    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU Affero General Public License for more details.

    You should have received a copy of the GNU Affero General Public License
    along with this program.  If not, see <http://www.gnu.org/licenses/>. 
-->

<templates>

	<t t-name="muk_preview.PreviewContentAudio">
		<t t-call="muk_preview.PreviewContent">
			<div class="mk_preview_audio">
				<div class="visualizer-wrapper">			
					<div class="visualizer">
						<canvas width="200" height="100" />
					</div>
					<audio t-att-data-title="widget.filename" controls="controls">
						<source t-att-src="widget.url" t-att-type="widget.mimetype" />
						Your browser does not support the audio element.
					</audio>
				</div>
			</div>
		</t>
	</t>
	
</templates>