diff --git a/Classes/AFSoundPlayback.m b/Classes/AFSoundPlayback.m
index 03e6117..863ef7d 100644
--- a/Classes/AFSoundPlayback.m
+++ b/Classes/AFSoundPlayback.m
@@ -64,6 +64,7 @@ -(void)listenFeedbackUpdatesWithBlock:(feedbackBlock)block andFinishedBlock:(fin
         updateRate = 1 / _player.rate;
     }
     
+    [_feedbackTimer invalidate];
     _feedbackTimer = [NSTimer scheduledTimerWithTimeInterval:updateRate block:^{
         
         _currentItem.timePlayed = (int)CMTimeGetSeconds(_player.currentTime);