基于嵌入式系统的多媒体音乐播放器  

Multimedia Music Player Based on Embeded System

作　　者：宫鹏[1] 宫玥[2] 王瑞宝[2] 

机构地区：[1]青岛大学自动化工程学院,山东青岛266071 [2]青岛有线电视网络中心,山东青岛266000

出　　处：《现代电子技术》2011年第12期100-103,共4页Modern Electronics Technique

摘　　要：为了改善音乐播放器传统界面,扩充功能,提高音质,基于ARM7嵌入式系统平台和FAT 32文件系统,设计了一款带有文本阅览功能的多媒体音乐播放器。它不仅能正确识别并显示存储在SD,MMC等存储卡内的音频文件,支持环绕立体声调节和重低音调节,还可通过液晶屏浏览存储在存储卡内的中、英文TXT文档。该播放器选用具有出色音频解码能力的VS1053解码芯片,它支持320 Kb/s的MP3或256 Kb/s的WMA音乐文件的播放。该播放器通过视听验证,实现了4种以上不同的音效,满足使用者对音效的不同喜好。实现了环绕立体声调节和真正的立体声双声道音频输出。同时在操作上简单便捷,具有友好的人机界面。To perfect the tranditional interface,extend the functions,and improve the tone quality of music player,a multimedia music player with text reading function was designed based on Arm7 embedded platform and FAT32 file system.It not only can recognize and display MP3 and WMA files stored in memory cards（such as SD and MMC,etc.）,support the tuning of surround sound and mega bass,but also can read Chinese or English TXT documents stored in memory card by LCD.The vs1053 decoding chip which has a perfect voice frequency decoding ability is chosen for the player.It supports the play of 320 kbps MP3 and 253kbps WMA files.More than four sound effects of the player can meet the requirement of different users.The tuning of surround sound and the output of real stereo dual-sound channel were achieved.Moreover,this system with excellent human-machine interface is easy to operate.

关 键 词：ARM7 SD卡 多媒体播放器 VS1053 

分 类 号：TN911-34[电子电信—通信与信息系统] TP333[电子电信—信息与通信工程]