1. A speech recognition system for identifying words from a sound block, the speech recognition system comprising: a word recognizer for deriving a best path through a word graph, each word in the word graph having assigned a word score and a phonetic transcription, and wherein words are assigned to the sound block based on the best path, wherein the word score of each word in the word graph includes the word score as obtained from applying a phonemic language model to each word of the word graph, wherein the phonemic language model includes information about at least one allowable sequence of phonemes within a word.