first sound is you you make your mouth like this right and so even though the sound is exactly the same the lips move very differently and so your brain how many people got the the effect how many people heard the five okay very good very good so it seems to be working very good right so this motivates the idea that if you want a representation for example a video representation you to combine the visual and audio and you probably want to combine it pretty early this is this is a very kind of powerful effect even if you know about the effect