SOUND MODEL ADAPTATION DEVICE, SOUND MODEL ADAPTATION METHOD, AND SOUND MODEL ADAPTATION PROGRAM

摘要

PROBLEM TO BE SOLVED: To provide a sound model adaptation device, a sound model adaptation method, and a sound model adaptation program capable of performing noise adaptation of a sound model in lower computations amount without degrading adaptation accuracy.;SOLUTION: A first noise adaptation part 20-1 increases sound model, which is adapted for noise, and performs noise adaptation. A second noise adaptation part 20-2 performs noise adaptation using linear approximation. An adaptation system selection part 10 selects the first noise adaptation part 20-1 or the second noise adaptation part 20-2 based on statistics value of noise, which is adapted to a sound model and the sound model.;COPYRIGHT: (C)2014,JPO&INPIT