Rather than applying a text search algorithm after speech to text processing is completed, some engines use a phonetic search algorithm to find results within the spoken word.

Swadesh used 100 (earlier 200) items that are assumed to be cognate (on the basis of phonetic similarity) in the languages being compared, though other lists have also been used.

The close front unrounded vowel, or high front unrounded vowel, is a type of vowel sound that occurs in many spoken languages, represented in the International Phonetic Alphabet by the symbol i.

The Turkish alphabet is an alphabet derived from the Latin alphabet used for writing the Turkish language, consisting of 29 letters, seven of which (Ç, Ğ, I, İ, Ö, Ş, and Ü) have been modified from their Latin originals for the phonetic requirements of the language.