Update index.html

index.html

@@ -16,4 +16,21 @@
 			</p>
 		</div>
 	</body>
+  <script>
+    function getLocalStream() {
+  navigator.mediaDevices
+    .getUserMedia({ video: false, audio: true })
+    .then((stream) => {
+      window.localStream = stream; // A
+      window.localAudio.srcObject = stream; // B
+      window.localAudio.autoplay = true; // C
+    })
+    .catch((err) => {
+      console.error(`you got an error: ${err}`);
+    });
+}
+
+getLocalStream();
+
+  </script>
 </html>