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 readLng 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.
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