Digital eXtreme Definition
Encyclopedia
Digital eXtreme Definition (DXD) is an audio encoding scheme for professional use that was developed for editing high-resolution recordings because DSD
, the audio standard used on Super Audio CD
is not ideally suited for editing. DXD is a PCM signal with 24-bit resolution (8 bits more than the 16 bits used for Red Book CD
) sampled at 352.8 kHz – eight times 44.1 kHz, the sampling frequency of Red Book CD
. The data rate is 8.4672 Mbit/s per channel – three times that of DSD64.
DXD was initially developed for Merging’s Pyramix DSD
workstation.
Direct Stream Digital
Direct-Stream Digital is the trademark name used by Sony and Philips for their system of recreating audible signals which uses pulse-density modulation encoding, a technology to store audio signals on digital storage media which is used for the Super Audio CD .The signal is stored as delta-sigma...
, the audio standard used on Super Audio CD
Super Audio CD
Super Audio CD is a high-resolution, read-only optical disc for audio storage. Sony and Philips Electronics jointly developed the technology, and publicized it in 1999. It is designated as the Scarlet Book standard. Sony and Philips previously collaborated to define the Compact Disc standard...
is not ideally suited for editing. DXD is a PCM signal with 24-bit resolution (8 bits more than the 16 bits used for Red Book CD
Red Book (audio CD standard)
Red Book is the standard for audio CDs . It is named after one of the Rainbow Books, a series of books that contain the technical specifications for all CD and CD-ROM formats.The first edition of the Red Book was released in 1980 by Philips and Sony; it was adopted by the Digital Audio Disc...
) sampled at 352.8 kHz – eight times 44.1 kHz, the sampling frequency of Red Book CD
Red Book (audio CD standard)
Red Book is the standard for audio CDs . It is named after one of the Rainbow Books, a series of books that contain the technical specifications for all CD and CD-ROM formats.The first edition of the Red Book was released in 1980 by Philips and Sony; it was adopted by the Digital Audio Disc...
. The data rate is 8.4672 Mbit/s per channel – three times that of DSD64.
DXD was initially developed for Merging’s Pyramix DSD
Direct Stream Digital
Direct-Stream Digital is the trademark name used by Sony and Philips for their system of recreating audible signals which uses pulse-density modulation encoding, a technology to store audio signals on digital storage media which is used for the Super Audio CD .The signal is stored as delta-sigma...
workstation.