 first to reset environment.</p>
                <button id='record'>Start Audio Conversation</button>
                <br/><br/><br/><br/><br/>

                <button id='playVideo'>Play Video in audio conversation.</button><br />
                <video src='/proxyVideo' id='video' style='width:600px'></video>
                <br />
                <hr />

                <h3>Audio and video in; Audio out</h3>
                <p>To try this demo, please reload the page first to reset environment.</p>
   