Patent ID: 7444282

Claim:
A method of automatic labeling to tune a phoneme boundary of a first label file generated by performing automatic labeling of a manual label file, the method comprising: searching for neural networks having minimum errors with respect to a number of L phoneme combinations from a number of K neural network combinations generated at an initial stage or updated; updating weights during learning of the K neural networks by K phoneme combination groups searched with the same neural networks; composing an optimum-partitioned classified neural network combination using the K neural networks of which a total error sum has converged; tuning a phoneme boundary of a first label file using a phoneme combination group classification result and the optimum-partitioned classified neural network combination from the composing of the optimum-partitioned classified neural network combination; and generating a final label file reflecting the tuning result, wherein a phoneme boundary tuning field in the tuning of the phoneme boundary or the first label file and the generating a final label file reflecting the tuning result is set to a predetermined field of a duration time of left and right phonemes of the phoneme combination.