本帖最后由 Salinx 于 17-2-3 03:48 编辑
DSD同期录音技术制作SACD在若干年前最早出现于欧洲。
Telarc在1998年5月就与Sony正式签约开始进行DSD录音。将录音效果推向高点 -
而瑞士的Pyramix 继续发挥了DSD的音质还原度。 使得DSD的声音 区别于传统的PCM 算法。
想更多了解DSD的朋友 可以去翻墙看看以下文献:
http://craigmandigital.com/education/PCM_vs_DSD.aspx
http://nw-electric.way-nifty.com/blog/2015/05/dsdpcm-c9b6.html
http://www.sa-cd.net/faq
http://www.docin.com/p-1700088839.html
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MEET THE CODECS
Hi-Res Audio doesn't refer to any one format, though. It can be packaged in a number of different ways using various codecs, which are the 'languages' of digital audio.
The most popular suitable codecs include FLAC, ALAC, AIFF, WAV and DSD.
Here's a quick look at the differences between these main audio standards:
FLAC – Probably the most popular lossless format, FLAC was introduced in 2001. It is an open format. Despite being lossless – which means that none of the music information is lost in the digital transition – it'll still reduce the size of music files dramatically.
ALAC – This is Apple's own lossless format, used in iTunes when you want to rip tracks losslessly. It's open-source just like FLAC. So what's the benefit of ALAC over FLAC? Audio-wise, nothing. However, iTunes can't play FLAC files, but it can play ALACs.
AIFF – If you think FLAC is old, get a load of the 28-year-old AIFF. The issue here is that it's much less space-efficient than FLAC. The files are pretty large.
WAV – Similar to AIFF, WAV is a long-standing lossless audio format, one much less efficient data-wise than FLAC and ALAC. It was created by Microsoft and IBM, surfacing in the early '90s.
DSD – DSD is the true audiophile digital format, created by Philips and Sony for use in Super Audio CDs (SACDs). The benefit of DSD is that sampling rates go up to an incredible 2.8MHz or 5.6MHz, which is 64 or 128 times the rate of CD. However, it does so at 1-bit depth, rather than the up-to-24-bit rate you'll get in some of these other formats. So every time it captures audio data, it captures less, but does so with astonishing regularity. 5.6MHz DSD will eat up almost 5GB in an hour.
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PCM VS DSD ---这篇文章 细看一下也很不错
谈论了 PCM与DSD 优缺点! 值得一看的文章
DSD的痕迹(图5)代表方波优于前两PCM的痕迹,它看起来在菲利普斯宣传册图片非常相似(除了它是模糊的)。像192khz照片,DSD信号开始由方波提取的第一和第三谐波。但DSD的精度是有代价的,,,,,,
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http://www.audiophileaddicts.com/2014/11/dsd-audio-simple-explanation/
http://1pmn.com/meinv/5567.html
http://www.stereophile.com/content/sony-scd-1-super-audio-cdcd-player-direct-stream-digital#OGwyX3KYTG0kUlL9.97
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