 Backmasking involves not only the reversal of the order of phonemes or phones, but the reversal of the allophonic realizations of those phonemes.Strictly speaking, a reversal of phonemes will still result in allophones appropriate for the new position; for example, if a word with a final /t/ is reversed so that the /t/ is initial, the initial /t/ will be aspirated in line with the conventional allophonic patterns of English phonology.According to proponents of reverse speech, phonetic reversal occurs unknowingly during normal speech.