Making Audio Faster

You know at the end of an ad the voice actor always talk really fast, but too fast that they're not actually talking that fast? (I hope that wasn't confusing) Well, I finally figured out how to do that! Today I was editing a podcast, and the host was talking a little too slow so that she could be more articulate, but just too slow. So, I did some "research" and finally found how to make the audio faster! And the effect doesn't change the pitch of the voice. So it just made the audio faster without making it sound like the speaker wasn't hitting puberty. Although unfortunately, I have to switch the audio from waveform to multitrack, there's probably a way to do it under waveform, which would make it easier, because I never edit in multitrack.