Phonetic search is the process of searching for words and phrases by their pronunciation.
Phonemes are the fundamental units of sounds that make up a spoken language. For example, the word catch contains the three phonemes, or sounds, k–a–tch. For more information on phonemes, see http://www.sil.org/linguistics/glossaryOfLinguisticTerms/WhatIsAPhoneme.htm.
The phoneme identification engine first processes an audio file to create a time track of phonemes, which reports the time at which each phoneme occurs in the file. This is a one-time process. IDOL Speech Server then searches the phoneme time track data for the specified words or phrases. On an average desktop computer, the search process can operate at a few hundred times faster than real-time.
HPE recommends that you use phonetic phrase search for audio files where the speech-to-text accuracy is not high enough for search purposes.
Phonetic phrase search is language dependent.
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