In this work, Remez and colleagues demonstrated a dramatic change in the way in which sine-wave speech sentences are perceived, depending on listener’s specific prior knowledge. For instance, listen to this sound:

Sine-Wave Speech

Most naive listeners here this as a set of simultaneous whistles, or science fiction sounds. However, for listeners that have previously heard this sound:

Clear Speech

Listening to the sine-wave speech sound again produces a very different percept of a fully intelligible spoken sentence.

(Read it here)

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