Patent ID: 8019604

Claim:
In an electronic device, a method comprising: generating, by the electronic device, one or more first phoneme lattices from audio data stored within an audio database; determining, by the electronic device, one or more best paths from the one or more first phoneme lattices; extracting, by the electronic device, one or more uniterms from the one or more first phoneme lattices; and storing, by the electronic device, the one or more uniterms and the one or more best paths in a uniterm index database: wherein extracting one or more uniterms comprises: generating, by the electronic device, a next latent statistical lattice model from the one or more phoneme lattices generated from the audio data extracting, by the electronic device, phoneme strings with a length that is at least equal to a pre-set minimum length from the one or more phoneme as candidates for the one or more uniterms; scoring, by the electronic device, the candidates for the one or more uniterms against the next latent statistical lattice model; and identifying, by the electronic device, a preset number of candidates with best scores as the one or more uniterms selected to represent the phoneme lattice.