Mp3
动态图像专家组-1或动态图像专家组-2 音频层III（英语：MPEG-1 or MPEG-2 Audio Layer III），常简称为MP3，是当今流行个一种数字音频编码搭有损压缩格式，渠被设计来大幅降低音频数据量，通过舍弃PCM音频数据中对人类听觉弗重要个部分，达成压缩成较小文件个目的。
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