Voice data transferring device, terminal device, voice data transferring method, and voice recognition system

摘要

A voice data transferring device intermediates between an in-vehicle terminal 102 and a voice recognition server 104. In order to check a change in voice recognition performance of the voice recognition server 104, the voice data transferring device 110 performs a noise suppression processing on a voice data for evaluation in a noise suppression module 118; transmits the voice data for evaluation to the voice recognition server 104; and receives a recognition result thereof. The voice data transferring device 110 sets a value of a noise suppression parameter used for a noise suppression processing or a value of a result integration parameter used for a processing of integrating a plurality of recognition results acquired from the voice recognition server 104, at an optimum value, based on the recognition result of the voice recognition server 104. This makes it possible to set a suitable parameter even if the voice recognition performance of the voice recognition server 104 changes.