System of HD Digital Audio Decoder

This paper describes a audio system for high-definition(HD)digital audio decoding solution. The system is well aligned to decoding audio data stream Dolby True HD,DTS HDMaster, and support advanced audio processing Pro Logic® IIx, DTS Neo6. Discuss focuses on system construction and management of audio process by host MUC.

Design of a Digital Audio Player Based on μc/Os and μc/GUI

At present, with the rapid development of digital audio technology, high speed and high performance digital audio processing technology faces an important issue. This paper proposes and designs a digital audio player combined with digital audio and embedded systems two cutting-edge technology. Hardware circuitry takes STM32F103VE as the main controller, configurated with VS1003 audio decoder chip and the corresponding SD card storage module, LCD module, power supply module and so on; software design transplants embedded operating system μC / OS. This paper takes advantage of μC/GUI to design audio player graphical user interface, improves the human-machine interface friendliness and aesthetics greatly.

The Realization of MP3 Player System Based on Mediastreamer2 Framework

In this paper, we modify some interface functions of the open source high quality MPEG audio decoder library (MAD) based on the Mediastreamer2 structure. The MP3 player system can support the normal playing of the local audio files at the same time of decoding. Under the test of S3C6410, the system designing in playing the local MP3 files is available, and with a lower utilization ratio of RAM and CPU.