基于TMS320VC5501 DSP的吉他数字效果器的设计与实现  

The Design and Realization of Guitar Effect Processor Based on TMS320VC5501 DSP

作　　者：关康信[1] 苏禹[1] 黎陟 

机构地区：[1]北京理工大学珠海学院,广东珠海519085 [2]得理乐器(珠海)有限公司,广东珠海519000

出　　处：《电声技术》2010年第10期26-29,共4页Audio Engineering

摘　　要：介绍了基于TITMS320VC5501 DSP的吉他效果器的设计与实现。硬件方面,主要对DSP,CODEC,MCU,信号处理以及信号选通等模块电路进行了详细的分析;软件方面,主要对各种芯片的初始化和系统的工作流程进行了分析和设计。最后介绍了延迟和移相两种效果的算法。实验证明,该效果器达到了预期目标,取得了良好的数字效果。Compared with the traditional effecter, the new type effecter is quickly applied to various sound equipments with its intelligence, individuation, and hi-fi advantages. This thesis introduces a design of guitar digital effecter which is based on TI TMS320VC5501 DSP. At first some hardware function models are discussed in details, which including the interface circuits of DSP, CODEC, MCU, signal processing circuits, and demuhiplexer circuits. Then the initialization of all kinds of chips and the workflow of system are stated concretely. Finally the algorithm of delay and phase are analyzed in particular. The experiment shows that the effecter reaches prospective target and abstains good results.

关 键 词：DSP 吉他数字效果器 算法 CODEC 

分 类 号：TB53[理学—物理]