Ironic that they didn't take the audio feed directly from the mixer, eh?
re: the "hearing what we're expecting to hear" section, she had the clips reversed. She said "let's listen to what's actually there" and played the clip without the 's' in 'legislature'. The difference between the two clips is that the s is missing because someone coughed or sneezed in the original and they edited the extra sound out, taking the 's' along with it.
I'm also happy he referred to Pace, Rhythm and Timing being useless descriptors. A speaker CAN'T affect these because they're all time-based and a speaker can only involve frequency and amplitude.