I'm going to stick my head out and say this is a misunderstanding on the part of the author. A transliteration goes from one written form to another, as for example, use of the roman alphabet to re-write a text that was originally written in Greek letters. The transfer of spoken language to written text is TRANSCRIPTION.

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Note added at 1 day 12 hrs 41 mins (2005-07-29 07:04:20 GMT)
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UNLESS the text was written in some other form previously -- for example, phonetic notation.