Patent ID: 11942074
Assignee: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 10:
11. A method comprising:
determining an influence degree on voice recognition accuracy caused by a change of a signal-to-noise ratio, based on a result of voice recognition on kth noise superimposed voice data and a result of voice recognition on k−1th noise superimposed voice data, wherein K is an integer of 2 or larger, k=2, 3, . . . , K, and a signal-to-noise ratio of the kth noise superimposed voice data is smaller than a signal-to-noise ratio of the k−1th noise superimposed voice data:
obtaining a largest signal-to-noise ratio SNRapply among signal-to-noise ratios of the k−1″ noise superimposed voice data when the influence degree meets a given threshold condition; and
acquiring noise superimposed voice data having a signal-to-noise ratio that is equal to or larger than the signal-to-noise ratio SNRapply, as learning data.