Design of DSP-based Digital Audio Processing System and Implementation of MPEG-1_Audio_Layer_Ⅲ Decoding Algorithm
With the development of digital signal processing technology and DSP (Digital Signal Processor), MP3 format music (ISO/IEC 11172) is popular which is using MPEG1 international audio standard. But most of the rap3 decoder depends on unique application specific integrated circuit, so it is lack of flexibility and upgrade. To meet this requirement, a fixed point DSP Based MP3 Decode System is designed which can accomplish analysis and processing of MP3 audio digital signals as well as sampling and transmitting external analog audio signals through CODEC. It also includes Flash and hard disk to store programs and data, 128K-Byte RAM as data buffer, and USB controller to realize communication between system and PC. Its effectiveness is verified by experiments.
Digital Signal Processor MP3 digital audio fast algorithm
Zhigang Dong Guitao Cao Yan Wang
Shandong College of Electronic Technology Jinan, ShanDong Province, China Software Engineering Institute, East China Normal University Shanghai200062, China
国际会议
长沙
英文
1193-1196
2010-05-11（万方平台首次上网日期，不代表论文的发表时间）