POW-R (Psychoacoustically Optimized Wordlength Reduction) is a
dithering algorithmdeveloped by the consortiumof Lake Technology ( Dolby Labs), Weiss Engineering, Millennia Media and Z-Systems. This mathematical algorithm reduces longer digital audio word lengths (20, 24, 32 bits) to industry standard CD-quality 16 bits while retaining a high degree of perceived dynamic efficiency and very low noise. POW-R is a scalable algorithm, meaning it is dynamically optimized and ready for all sample rates from 16 kHz to 192 kHz, or higher.
POW-R is compact and designed for portability. The algorithms operate optimally in both DSP and native software in
digital audio workstationapplications. POW-R is technically not noise shaping. Rather, the original POW-R algorithm is based on narrow-band Nyquistdither and is free from artifacts, such as "birdies" and "motorboating", present in other Nyquist-band WLR techniques. With POW-R, look-up tables are avoided and all audio program is dynamically decorrelated from Nyquist-band dither. To better target all audio sources, non-narrow-band techniques are also offered in the POW-R algorithm set.
POW-R users are offered a choice of two or three POW-R algorithms from which to select:
* POW-R #1: optimized for simple program of average dynamic range, such as spoken word.
* POW-R #2: optimized for low dynamic range program, such as rock music.
* POW-R #3: optimized for complex, high dynamic range program, such as orchestral music.
The POW-R Consortium, LLC is an autonomous, non-competitive entity established for the sole purpose of maintaining and supporting the POW-R Algorithms. POW-R is a registered trademark of the POW-R Consortium, LLC (John La Grou, Chairman). POW-R is licensed to
Apple Computer, Avid- Digidesign, SADiE, Sonic Studio, BIAS, Cakewalk Sonar, Merging Technologies, Ableton, Magix / Sequoia / Samplitude, and others.
* [http://proaudioreview.com/october99/Weiss-web.shtml POW-R redithering box review]
Wikimedia Foundation. 2010.
Look at other dictionaries:
POW! — Einflüsse: Oberon Betriebssystem: Windows POW! (Programmers Open Workbench) ist eine an Oberon angelehnte Programmiersprache und stellt eine Weiterentwicklung der Programmiersprache Pascal dar. Die integrierte Entwicklungsumgebung w … Deutsch Wikipedia
Pow! — was a weekly British comic published by Odhams Press under the Power Comics imprint. It first appeared on 14 January 1967, and with its 53rd issue on 13 January 1968 it merged with its sister title Wham! . The 86th and final issue of Pow!… … Wikipedia
POW — [pē΄ō΄dub′əl yo͞o] n. pl. POW s PRISONER OF WAR … English World dictionary
pow — [pau] interjection [Date: 1800 1900; Origin: From the sound] used to represent the sound of a gun firing, an explosion, or someone hitting another person hard, especially in children s ↑comics … Dictionary of contemporary English
POW — [ˌpi: əu ˈdʌbəlju: US ou ] n a ↑prisoner of war … Dictionary of contemporary English
POW — [ ,pi ou dʌblju ] noun count a PRISONER OF WAR … Usage of the words and phrases in modern English
pow — expression imitative of a blow, collision, etc., first recorded 1881 … Etymology dictionary
POW — (prisoner of war) n. soldier who has been taken prisoner by an enemy army … English contemporary dictionary
POW — ► ABBREVIATION ▪ prisoner of war … English terms dictionary
pow — pow1 [pō] n. Chiefly Scot. POLL (sense 1) pow2 [pou] interj. used to suggest the sound of a shot, explosion, etc. n. such a sound … English World dictionary