... for reducing the word-length of a high-resolution digital
signal to 16 bits for the Internet and CD mastering, or 20-bit
for DVD-Video. UV22 has been the industry standard for CD
mastering since 1993: now the latest version, UV22HR ("High
Resolution")
is also being employed to produce dramatically improved Internet
and computer audio without increasing file sizes or data rates.
Fixed or floating point implementation.
Used on 8 out of 10 hit records Alien Ant Farm
Beck
Brooks & Dunn
Bruce Springsteen
Caetano Veloso
Foo Fighters
John Secada
London Philharmonic Orchestra
No Doubt
Sarah Brightman
Sheryl Crow
and so many more...
Want to get
every bit of your recordings...?
Get UV22HR
Available in every Apogee converter
UV22HR,
the basics:
The UV22HR algorithm essentially modulates the data from
the least significant bits of a signal to the 16-bit signal.
UV22HR adds an inaudible high-frequency ‘bias’
to the digital bit stream, placing a ‘clump’
of energy at around 22 kHz (above the upper limit of human
hearing)
UV22HR provides the benefits of normal dither (eliminatingquantization
distortion and smoothing out the signal) without adding
to the effective noise floor.
UV22HR allows the listener to hear coherent audio signals
several dB below the 16-bit noise "floor" –
just like analog!
A recent survey indicates that 8out of 10 of the major
mastering studios in the U.S. used UV22HR on at least 80%
of their projects.
Truncation (unacceptable):
literally chopping off the bits between 24 and 16
Conventional Dither (good):
some of the 24 bit recorded detail is lost in noise
UV22HR (exceptional):
most of the original 24bit signal is maintained
