For some reason Alexa has trouble repeating sounds and eventually they make her voice break apart.
Just start this skill by saying "Alexa, break your voice." She will try to say five thousand zeroes in a row, and very quickly she will eventually lose all control, resulting in a bunch of rapid, overlapping syllables.
You can also interrupt her with the phrase "Alexa, information," if you want more details on how this works.
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