Adaptive Differential Pulse Code Modulation Using An AVR MICROCONTROLLER

摘要

Efficient and simplified speech processing algorithms like Adaptive Differential Pulse Code Modulation (ADPCM) and enhanced features of microcontrollers have made it possible to add sophisticated and complex speech processing capabilities to any 8-bit AVR microcontroller.rnAnalysis of speech samples, obtained from an analogue-to-digital conversion process, reveals that a high correlation is found between consecutive speech samples.