How do you recognize it? For science and future situations.
It's more clearly notable before the backing track kicks in but you can hear a tinge of modulation in the start from where the audio is being pitch shifted. You can probably 'feel' when it's happening because there will be a faint but perceptible warble to the voice as opposed to feeling smooth. There could be a chance it could just be shit audio setup, but a poor recording tends to feel like it has holes in the sound rather than waves.