非线性脉码调制技术及应用

Non-Linear Pulse Code Modulation Technology and It's Application

本文介绍了用NLPCM(Nonlinear Pulse Code Modulation,非线性脉码调制)进行语音合成的原理。采用基于NLPCM原理制成的单片语音处理器MC14403,用MCS-51单片机进行控制,实现了飞机座舱告警系统中所需语音的合成。该系统结构简单,通用性强,成本低,修改灵活。合成语音清晰、自然可懂。

This paper introduces the principle of speech composite by non-linear pulse code modulation (NLPCM). A single-chip speech processor MC14403 based on the NLPCM principle is made and controlled by single-chip microcomputer MCS-51 to realize speech composite for aircraft alerting system. This system is simple in construction, universal in application, convenient in modification and low in cost. The composite speech is clear, natural and easy to understand.