Bueno, como sabras, porque esta en el CD, los HDAD se obtienen de la siguiente forma:



MASTERTAPE SOUND IN YOUR LISTENING ROOMTM


Revolutionary Digital Audio Product that plays on a home DVD Video Player!
The Classic Hybrid DVD Audio Disc (HDAD) is a two-sided DVD disc with 24/192 PCM data playable on DVD Audio players on one side, and 24/96 PCM data playable on DVD Video players on the other side. The Classic HDAD is a truly universal DVD disc playable on all DVD players. So if you have a DVD video player, you can play the DVD Video side of the HDAD—insert the disc with the Blue center ring facing up and enjoy 24/96 playback resolution. On a DVD Audio player, simply flip the disc over with the Red ring facing up and enjoy 24/192 playback resolution.

The process starts with the encoding of an analog signal from a live microphone feed or more commonly from an analog master tape. A highly sophisticated Analog to Digital converter (A to D) samples the analog signal 192,000 times per second (192 kHz) and assigns a numerical value to each sample point. The 192 KHz sampling rate is more than four times the 44,100 (44.1 kHz) sampling rate used on standard CDs. Through a process called downsampling, the 192 KHz data is used to derive a 96 KHz data set that is used on the DVD video player side of the HDAD. The numerical value assigned to each sample point at 192 kHz—about every 5.2 microseconds—is stored as a 24-bit digital word. The significance of a 24-bit digital word is that there are 16.8 million different potential values for each 24-bit word! By contrast, there are only 65,536 different potential values for a 16-bit digital word on a normal CD. The additional 8 bits on an HDAD allow for over 16 million additional voltage values to represent the original analog signal. Further, 24-bit resolution offers 144dB of dynamic range from the softest to the loudest musical note. At 144dB of dynamic range, we greatly exceed the dynamic range available on the world’s finest analog tape machines. For the first time in the history of digital audio, we can provide Master Tape Sound (MTS)TM. We hope that you will appreciate the effort that goes into making this remarkable HDAD when you listen to what this technological wonder has to offer.


Saludos.