This work presents three kinds of improvement for AMDF-based pitch detection.One is the circular AMDF (CAMDF), one is the modified AMDF (MAMDF), and the other is modified and circular AMDF (MCAMDF).

• 因此本研究欲利用音高周期特徵设计一套语音辨识嵌入式系统，以提高语音互动人机介面在嵌入式系统的功能性与应用性。