The purpose of this thesis is to develop an active noise control (ANC) earphones with low cost DSP chip such that background noise can be cancelled while listening to the music.

• 本论文主要目标是开发低价位DSP实现之主动式耳机，希望使用耳机听音乐时，能够消除外在背景噪音，使得使用者能够听到清晰的音乐。