Patent ID: 11956604
Assignee: ALPS ALPINE CO., LTD.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC G  H | IPC H

Claim 1:
2. The in-vehicle communication support system according to claim 1, wherein:
a transfer function of the first filter is set in advance, by causing a third microphone that is a microphone disposed at a position of the first seat virtual microphone to collect a predetermined tuning sound while outputting the predetermined tuning sound from the speech position of the user in the first seat, causing a first adaptive filter to perform an adaptive operation with a difference between an output of the first adaptive filter having the output of the second microphone as an input and an output of the third microphone delayed by a predetermined time as an error, and setting a transfer function of the converged first adaptive filter as the transfer function of the first filter.