Audio System for the Social Humanoid Robot SemuBot

Abstract

A huge and important part of a human companion robot is related to communication abilities. The humanoid robot should be able to hear the incoming speech, understand it and respond to it in the direction of a human that starts the interaction. To provide for such a solution, this thesis focuses on the design, testing and implementation of such a sound system for a real human companion robot. The proposed sound system is composed of a microphone array board, a speaker system, a digital amplifier, and the Arduino MEGA for testing amplifier volume gain. Additionally, the ROS2 Humble is utilised for uniting the coded scripts and better communication with other parts of the robot. The result of this work is shown on a real robot and together with other team members presented as a working prototype.