语音压缩、叠加的应用研究

Study on the application of speech compression and superposition

许多高品质语音芯片的音效很好,但常常因为处理的数据量大、信号不便传输,对方便实用的语音系统的开发带来了困难。文中提出一种易于在单片机和高密度可编程器件组成的系统上实现语音处理新方法,较好地完成语音信号的压扩编解码与语音信号的叠加。实践证明这是一种开发多功能语音处理系统中性价比较高的方法。

Although the sound-effect of many high-quality speech chips is very good,the amount of data need to be processed is too large.A feasible method is introduced to code and decode(converting between linear code and A-law pulse-code-modulation code)in order to reduce the quantity of speech data,and to superpose speech signal.It is realized on monolicthic processor and high density pro-grammable logic device.The result prove that this method has good cost effectiveness.[