code: function _onUserMedia(engine, entity, callback, localMediaStream) {
        var source, analyser;
  
        source = this._context.createMediaStreamSource(localMediaStream);
        analyser = this._context.createAnalyser();
        source.connect(analyser);
  
        entity.addComponent(new Serpentity.Contrib.Components.Analyser({
          analyser : analyser
        }));
  
        entity.addComponent(new Serpentity.Contrib.Components.Configuration({
          config : {}
        }));
  
        engine.addEntity(entity);
        callback(entity);
      }
docs: /*
  Handler for the userMedia request