Sound emitting equipment, sound collecting equipment, microphone authentication system, and microphone authentication method

摘要

In the microphone authentication method, the sound emitting device (2) transmits the authentication information to the sound collecting device (3A, 3B, 3C). The sound collecting device (3A, 3B, 3C) receives the authentication information and transmits the sound collecting signal to the sound emitting device (2). The sound emitting device (2) receives the sound collecting signal transmitted from the sound collecting device (3A, 3B, 3C) that has received the authentication information in the partitioned space (10). The sound emitting device (2) emits sound based on the sound collecting signal.