第三层国际标准压
![](https://www.godic.net/tmp/wordimg/WniItKb9yPI1cSKBdgzIEC2e3PQ=.png)
技
![](https://www.godic.net/tmp/wordimg/iWVo2uS@a9t2Ei8U1t@htxg64v8=.png)
。
![](https://www.godic.net/tmp/wordimg/0Lxz4VpuwnPYij4KFZbhQYEAulA=.png)
![](https://www.godic.net/tmp/wordimg/aJYRYLoJbPPTAz3YtNBRlsgd0p8=.png)
1992年合并至MPEG规范中。该标准是为了提高MPEG-1运动画面压
![](https://www.godic.net/tmp/wordimg/WniItKb9yPI1cSKBdgzIEC2e3PQ=.png)
标准中的声频压
![](https://www.godic.net/tmp/wordimg/WniItKb9yPI1cSKBdgzIEC2e3PQ=.png)
技
![](https://www.godic.net/tmp/wordimg/iWVo2uS@a9t2Ei8U1t@htxg64v8=.png)
而设立的。MP3能够以高音
![](https://www.godic.net/tmp/wordimg/PCItDRaceVgGouyFSt4@@hEG3edw=.png)
、低采样
![](https://www.godic.net/tmp/wordimg/4F7UtsCQvitSuVpiBdQ6fgbNy9U=.png)
对数字音频文件进行压
![](https://www.godic.net/tmp/wordimg/WniItKb9yPI1cSKBdgzIEC2e3PQ=.png)
。MPEG技
![](https://www.godic.net/tmp/wordimg/iWVo2uS@a9t2Ei8U1t@htxg64v8=.png)
是有损压
![](https://www.godic.net/tmp/wordimg/WniItKb9yPI1cSKBdgzIEC2e3PQ=.png)
。通过此方法。以十分之一到十二分之一的压
![](https://www.godic.net/tmp/wordimg/WniItKb9yPI1cSKBdgzIEC2e3PQ=.png)
![](https://www.godic.net/tmp/wordimg/JAg6kTeCa1jwaTAJ8URiW3DVvAI=.png)
![](https://www.godic.net/tmp/wordimg/4F7UtsCQvitSuVpiBdQ6fgbNy9U=.png)
可获得音
![](https://www.godic.net/tmp/wordimg/PCItDRaceVgGouyFSt4@@hEG3edw=.png)
丢失很小(人耳根本无法察觉这种音
![](https://www.godic.net/tmp/wordimg/PCItDRaceVgGouyFSt4@@hEG3edw=.png)
损失)的音响效果。这是被广泛应用的压
![](https://www.godic.net/tmp/wordimg/WniItKb9yPI1cSKBdgzIEC2e3PQ=.png)
技
![](https://www.godic.net/tmp/wordimg/iWVo2uS@a9t2Ei8U1t@htxg64v8=.png)
。
MP3PRO
音频格式。MP3PRO完全是基于传统MP3编码技
![](https://www.godic.net/tmp/wordimg/iWVo2uS@a9t2Ei8U1t@htxg64v8=.png)
的一种改良。本身最大的技
![](https://www.godic.net/tmp/wordimg/iWVo2uS@a9t2Ei8U1t@htxg64v8=.png)
亮点就
![](https://www.godic.net/tmp/wordimg/aJYRYLoJbPPTAz3YtNBRlsgd0p8=.png)
于SBR(Spectral Band Repli
德 语 助 手 版 权 所 有