await a little before quiting channel

commands/fun/ttsvc.js

@@ -67,7 +67,7 @@ module.exports = class ttsvcCommand extends Command {
                               const stream = "./tts.mp3"
                               const dispatcher = connection.playStream('./tts.mp3');
               //  End at then end of the audio stream
-                              dispatcher.on('end', () => voiceChannel.leave());
+                              await dispatcher.on('end', () => voiceChannel.leave());
                           });
             });
           });

package.json

@@ -26,6 +26,7 @@
     "google-tts-api": "0.0.4",
     "node-fetch": "^2.2.0",
     "node-gyp": "^3.8.0",
+    "node-opus": "^0.3.1",
     "printer": "^0.2.2",
     "self-reload-json": "^0.4.0",
     "superagent": "^4.0.0-beta.5",