什么是母带？
08年的时候，几家世界著名的发烧唱片公司已经开始通过网络销售由母带转换出来的24bit/96khz FLAC音乐文件！由于这些音乐是从录音室的原装母带转出来的文件，其24bit/96khz的格式相对于有压缩的普通CD（16bit/44.1khz）的音乐品质更高，也就是说这些音乐比CD唱片的音乐品质更佳，可以号称母带级音质！母带音乐，是彻头彻尾的数字格式。它播放时不以任何光盘为载体，而是作为一种计算机数据格式存在。当母带工程师完成了母带处理之后，所得到的就直接无损转化成为数字母带，也就是说用户拿到的数据，和母带工程师那里的完全一致，两者因此有了统一听感，也就是说：播放数字母带听到的，和母带工程师听到的完全相同。
传统C D：母带处理>玻璃化>父盘>母盘>压盘>塑料盘>封面印刷包装>最终用户
数字母带音乐：母带处理>最终用户 学习了
回复 1# 的帖子
和母带工程师听到的完全相同。有个前提条件：你的听音设备和环境要和制作所的一样！，这可能吗？
还有《24bit/96khz FLAC音乐文件！》和母带也不是一回事！ 淘宝上的所谓母带硬盘，是真的吗？
看了看目录，古典偏少啊 哦，是这样 听音设备和环境要和制作所的一样！一般环境下差多少？与cd区别大吗？ 就是现在的母带都是近几年的,所以以前的古典音乐是没的 学习 总而言之，能比CD好，就是一大进步了:) 这个我喜欢 学习了 http://www.linnrecords.com/linn-what-is-a-studio-master.aspx
So what's the story behind all this?
When music entered the digital realm the major driving factor behind new technology was convenience. By taking the analogue sound wave that was once pressed into vinyl, slicing it up, and converting it to 1s and 0s allowed it to fit on a small shiny Compact Disc. These were great because they could be played thousands of times without degrading, they weren’t so susceptible to scratches and fingerprints, were easier to store and were pretty cheap to manufacture. At the time there was a big hoo-ha that they just didn't sound as good, and lacked all the great qualities of vinyl that music lovers and audiophiles had come accustomed to.
And they were right, when they hit the market, CDs were actually the lowest quality music format - even 8-track tape was capable of holding much more information than this optical media. The dynamic range - the highs and lows in volume and subtleties of the music - as well as the underlying 'noisiness' of the recordings suffered, but to the average listener this didn't really matter, and they were just so convenient that most people didn't seem to care. In fact for a majority it was probably an improvement on worn out cassette tapes! But there were still those that remained firm that vinyl and the original analogue formats just sounded better.
Fast forward ten or fifteen years and welcome the MP3. Suddenly the prospect of having 10,000 songs in your pocket really appealed, and it was even more convenient to be able to buy an album without walking through the rain to the record store - or even better to discover amazing new music through the internet. But this required music to be chopped up in to even fewer 1s and 0s and compressed into even smaller spaces. This is when the music really started to suffer, all that chopping and compressing sacrificed evenmore dynamic range, squashing the subtleties, and adding noise in the holes where there once was music.
So how do we get back to the place where we left vinyl behind - all that great musicality and almost intangible qualities of the rich analogue sound - but still take the best bits of the new digital world? Step up the Studio Master download.
Why is Studio Master the best quality?
An interesting question to ask when moving music from the analogue to the digital realm is how much of the music we should convert to 1s and 0s? And what happens to all the information in the gaps? Linn have decided that CD quality isn't quite good enough at doing this given recent advances in technology, and doesn't keep enough of the original sound information.
Music on CD is encoded at 16-bit (the bit depth) and at 44.1kHz (the sample rate). The sample rate tells us how many times the original signal has been 'sliced up' and the bit depth tells us how much information has been recorded in each slice. It's the bit depth that, for convenience, is largely referred to as the resolution. In reality the higher the resolution and higher the sample rate the fewer things we have to do to get round all the little errors that occur in the music when it is sliced up and converted from real world sound into digital and back again. Hence the higher the resolution, the closer we get to that lovely, rich, dynamic performance by the artist.
Studio Master files are encoded at 24-bit or higher, and currently up to 192kHz. This is so close to analogue quality that it is virtually impossible for the human ear to perceive any difference. Therefore we feel this is the best format in which to be offering our music. This is the level that most music is recorded at these days, and that is the resolution that we offer it to you, so it doesn't get any better! http://www.referencerecordings.com/HRx2.asp
1. What is HRx? HRx is our trade name for high resolution audio WAV files on a DVD-R data disc. These files contain exact bit-for-bit copies of Reference Recordings’ master recordings. They are the ultimate in fidelity for two-channel sound!
2. Why did Reference Recordings decide to make HRx? We have a virtually unbroken history of making the finest possible high resolution recordings.We started with analog tape. We weren’t satisfied with early technology, 16 bit digital recordings, but soon began making HDCD (High Definition Compatible Digital) recordings, in which the process was co-designed by our own recording guru Keith O. Johnson. In the opinion of many, these are probably the best digital recordings ever. Currently we record at 176.4 kHz/ 24 bits, with HDCD, and that is what we put on our HRx discs. Like any quality recording company, we have long been frustrated by the limitations of consumer formats: LP, CD, SACD, DVD-A, etc. No one but our recording and mastering team could hear the full beauty of our recordings!ALL of the consumer formats downgraded the true sound of the master tapes, either because of the limitations of the format itself or of the playback equipment.Computer music playback is the new frontier, and we applaud the brave audiophiles who are its pioneers!The WAV files on HRx are exactly the same as our master recordings. As long as the playback system you use does not convert or corrupt the bits, they will sound as wonderful as our original masters. HRx Notes by Keith O. Johnson 这是2个比较知名的唱片公司，对母带各自的解释。
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