This is an audio manipulation of a walk in the park. I took 4 copies of the sound and offset them by 20 ms and then stretched it so that they ended at the same point. To my perspective the initial part feels slowed down just because of the echoes. though in reality a few of the sounds are actually slightly faster. Echoes do give a sense of slowness because the sound has multiplied and offset and therefore it feels perceptually much longer than it actually is. Towards the end you get other kinds of flange and reverb effects as the sounds reach the point of being synced.