AUDIO TRANSMISSION SYSTEM AND COMMUNICATION CONFERENCE DEVICE

摘要

In an audio transmission system, a control unit of a communication conference device sends a measurement sound wave from a speaker array to a terminal unit and measures the time until response is received, thereby detecting the position of the terminal unit. The control unit sets directivity characteristic so that microphone sensitivity of the microphone array is set toward the position of the terminal unit and sends the collected audio to another communication conference device. In the communication conference device of the reception side, the directivity characteristic of the speaker array is set so that the received audio appears as if it were issued from the position of the terminal unit of the transmission side.