基于通用型DSP的前端音频信号的处理方案

Implementation of Audio Signal Based on Universal DSP

在多媒体系统设计和实现中,需对音频进行采集。但在对音频进行采集的同时也要对视频信号进行处理,因音频的数据量少,又要求连续采集,故在两者的协调性和保证数据完整性方面存在难度。就此提出一种基于通用型DSP芯片的前端音频信号的处理方案,利用视频的采集间隙,储存音频数据,以实现在视频和音频的采集不同步的情况下,利用最少的资源,实现其在保证数据采集完整性的同时不与视频采集冲突。

Audio signal needs to be sampled in multimedia system design and realization, and video signal also needs same processing. For audio data is less and needs to be sampled continuously, it has to be compromised on these two kinds of data accessing and data integration. This paper introduces a solution based on DSP, which takes advantage of time slot while video signal is being sampled to save audio data perfectly. It takes least resource while ensures the realization.