Waves Multimaximizer L3-LL User Manual
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Contents
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L3-LL User Manual25Dithering and Noise Shapinging are two in plementary techniques tha rove theudio after it antized. Each technique is nsible for theferent subjective quality of the noise caused by re-quantization.Dithering alters the character of the qu more closely resemble analog hiss, ratherl quantization noise. The m ng is tothe quantization noise and th hus minimizing the non-lin istortion effectsof digital quantization noise. Th s replaces the non-linear tion sound withr, less displeasing analog-hiNoise Shaping psycho-acoustical of overall noise energy across thespectrum, by taking into account th hich the ear is mo isereases noise level in the 1-6 , a range to which the ear is se e, whilenoise level in the frequency range above 15 kHz to which the ear is les itive.ithering and noise sh aracter and frequency content of noise,to ouHere’s how Dithering and Noise Shaping help maintain 3 more bits of detail: Our brains are capable ofperceiving details that are lower than the noise floor. Since quantization noise is correlated to thesignal, it effectively masks the signal is correlation by inserting random signals,allowing our brain to distinguish signal from noise and thus perceive low level details. Noise shapingadds even more detail by shifting noise le range, away from the desired signal.IDR™ Dither Optionsype1ype 1 is a wide-band dither. Type1 adds a certain amount of noise, causing a 5dB increase inackground noise. It completely eliminates low-level distortion and signal-dependent modulationeffects. The result is a very transparent and clean low-level sound with a high resolution. It mostresembles the steady low-level hiss of an excellent quality analog system with no digital quantizationnoise.Type1 delivers no nonlinear distortion or modulation noise at low levels, and generates minimal sideeffects when used with stereo signals. It is the recommended choice for high quality masteringapplications. By combining level maximization and IDR™ processing, 16-bit audio created from 20 or24-bit masters have an apparent resolution of 19 bits. This is an improvement of more than 18dB.Finally, unlike other dithering engines that are designed for single-stage CD mastering, IDR™ Type 1 isoptimized for use at every processing stage, allowing for subsequent signal processing.Appendix B - IDR™ In DepthDithering and Noise Shap dependent, com t impperceived quality of digital a has been re-qu respoimprovement of a difantization noise tothan digita ain effect of ditheri reduce or eliminate all correlationbetween e original signal, t ear dtypical e dithering proces distorsteadie ss type noise.ly optimizes the distributione frequency ranges to w st sensitive. NoShaping dec kHz range nsitivincreasing s sensIn short, d aping work by modifying the chr ears.making it less displeasing. Dithering breaks thto a less audibTTb |
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