VOICE RECOGNIZING DEVICE FOR VEHICLE

摘要

PURPOSE:To improve the recognition rate of the voice of a vehicle driver being in a real running in a voice recognizing device for a vehicle. CONSTITUTION:The voice of a driver detected by a microphone 2 and including the noise in the vehicle is analyzed with a voice analyzer 3 to be outputted to a matching circuit 4. Besides. the noise level in the vehicle detected by a mocrophone 9 and a low-pass filter is outputted to a coupling quantity control circuit 6 and noise data stored in a noise data base 8 are adjusted to be increased or decreased in accordance with the detected level to be outputted to an adder 5. Voice data outputted from a voice data base 7 and the noise data are superposed in the adder 5 to be outputted to the matching circuit 4 and collated with an analyzed input voice. Thus. the recognition rate is improved because the noise data corresponding to the noise level in the vehicle are superposed on the voice data.