If the word she produces can differ arbitrarily in sound from the original and still count as a token of the same word, then sound identity is not the criterion for word-token sameness.
token(Philosophy of language; type-token distinction)
An actual physical thing located at a specific place in spacetime; a concrete instantiation such as a pile of ink on a page, a sound wave, or a collection of pixels on a computer screen
However, the final nail in the coffin for the suggestion according to which all tokens of the same word have the "same sound" is that words can be mispronounced. As Kaplan (1990) has argued, a word can suffer extreme mispronunciation and still be (a token of) the same word. He asks us to imagine a test subject, who faithfully repeats each word she is told. After a time, we put filters on her that radically alter the results of her efforts. Nonetheless, we would say she is saying the word she hea