Data: UPD 16th February 2024
Apogee UV22HR Computer Hardware PDF Overview (Updated: Friday 16th of February 2024 07:44:24 AM)
Rating: 4.7 (rated by 31 users)
Compatible devices: BIG BEN, X-HD, MINI ME, Eisblock Aurora Acryl GPX-N RTX 3090-3080, Mini-DAC, X-Video Card, UV-1000, AD-8000.
Recommended Documentation:
Text Version of Apogee UV22HR Computer Hardware Manual (Summary of Contents)
(Ocr-Read of Document's Main Page, UPD: 16 February 2024)
UV22HR in the Internet Audio Environment
An Overview
• Digital systems are not perfect: high quality signals are degraded by
transferring them to lower-quality media such as Internet audio, or even
CD.
• When you convert a signal in this way, you are throwing away detail,
which reduces the quality.
• You can’t simply throw bits away: you need to retain the detail. How?
• In the analog world, a signal could be faded down to nothing and would
smoothly disappear through the noise floor. You could hear detail
through the noise.
• Digital audio isn’t like that: run out of bits and the sound stops.
• You need a method of smoothing out digital audio at low level. How?
• The answer is dither – a noise signal added to the digital audio to
smooth out transitions.
• Unfortunately, most dither causes as many problems as it solves:
o Adds noise
o Detail is lost in the noise
o Noise sounds objectionable
• Many solutions were tried: the best is Apogee’s solution, UV22
• UV22: Sub-Nyquist dither, keeps the dither signal above the audible
range.
• Developed in 1993 – now the mastering industry standard. 80% of
albums mastered with UV22.
• New improved version released in 1999: UV22HR “High Resolution”.
• UV22HR offers increased benefits for mastering, plus outstanding
benefits for Internet, multimedia and computer audio
• Smaller file sizes without loss of quality
• Fewer artifacts, better audio quality
• Easy to incorporate into the OS to process all audio leaving the system
• Apogee’s UV22HR: The solution to better digital audio for new media.
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