Topic: 用iTunes 7导入CD，AAC Encoder, 160kbps, 还需要选“Use Variable Bit Rate Encoding (VBR)"吗？ @蒙特利尔华人论坛:蒙特利尔枫下论坛 The Rolia Forum of Montreal

枫下家园 / 家用电器 / 用iTunes 7导入CD，AAC Encoder, 160kbps, 还需要选“Use Variable Bit Rate Encoding (VBR)"吗？Importing CD using AAC Encoder at 160kbps stereo bit rate, and wondering if I still need to check that "Use Variable Bit Rate Encoding (VBR)" box? Coz I found "The AAC codec in QuickTime 6 builds upon state-of-the art signal processing technology from Dolby Laboratories and brings true variable bit rate (VBR) audio encoding to QuickTime."

Is VBR part of AAC already or still have to be selected manually? By the way, what is "Optimize for Voice"? I am using iTunes 7.

Thanks -hongyuanqian(无线); 2007-5-19 {489} (#3687024@0)

VBR文件比较小，属于动态采样，建议用192k VBR如果你耳机不是发烧级别的，小4或者大4以上的，就无所谓了 -fortunemaker(狂热); 2007-5-19 {54} (#3687562@0)

谢谢狂热！我的耳机不是发烧级，不过想尽量保留一点CD的原汁原味罢了，只要文件大小合理，觉得都可以接受。分别试了160kbps，192kbps，250kbps，说实话觉得区别不大。你说到的“小4和大4以上”是什么意思呢？ -hongyuanqian(无线); 2007-5-22 (#3691018@0)

@Montreal