Mastering.com pushes Logic Pro's Flex Time into extreme territory, stretching and squashing individual vocal phrases with the Speed algorithm to hear how timing changes affect pitch: slower drags the note down, faster pushes it up.
Switching to Tempophone on the same phrases produces a different result. Instead of a clean pitch shift, it chops and reassembles the audio into a stuttering, almost mechanical texture.
That glitchy character is worth stealing for drum hits or short one-shots when you want unusual ear candy, especially layered under other effects.
Toggling Flex Time on and off at the end makes clear just how far this treatment pulls the vocal from the original take.