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Noise shaping - Wikipedia
https://en.wikipedia.org/wiki/Noise_shaping#:~:text=Noise%20shaping%20is%20a%20technique%20typically%20used%20in,the%20apparent%20signal-to-noise%20ratio%20of%20the%20resultant%20signal.
What is Noise Shaping? — Sage Audio
https://www.sageaudio.com/blog/mastering/what-is-noise-shaping.php
Noise shaping is the combination of dithering and equalization, used to both cover quantization noise, and push any noise created by dithering into less perceivable areas of the frequency spectrum. With the use of noise shaping, dithering can be applied, while theoretically reducing the overall perceivable noise floor.
Dynamic Range, Dithering and Noise Shaping - Audio Check
https://www.audiocheck.net/audiotests_dithering.php
Shifting the dither noise toward the upper end of the audible spectrum - where our hearing is less sensitive - not only helps mask it, but keeps it out of the signal frequencies too. As you now listen to the noise shaped conversion, you will realize that speech remains intelligible down to -66 dBFS!
5.3.7 The Mathematics of Dithering and Noise Shaping ...
http://digitalsoundandmusic.com/5-3-7-the-mathematics-of-dithering-and-noise-shaping/
When noise shaping is added to dithering, there is less noise at low frequency and more noise at high frequency. The effect is to pull more of the noise to high frequencies, where it is noticed less by human ears. (ADCs also can filter out the high frequency noise if it …
Audio signal dither and noise shaping - Signal Processing ...
https://dsp.stackexchange.com/questions/15436/audio-signal-dither-and-noise-shaping
The original signal, the output (quantised) signal, the dither signal, and the error signal (the difference between output and original). A simple approach would be to generate white noise and apply a filter to it to generate a coloured dither signal, add this to the original signal, quantise to the output signal, and disregard the error signal.
What Is Dithering in Audio?
https://www.izotope.com/en/learn/what-is-dithering-in-audio.html
24-bit and noise-shaping: One thing we haven’t really touched on is noise-shaping. In a nutshell, it’s basically like applying EQ to the dither noise to make it less audible. At bit depths of 8 or 16 bits, this can make an appreciable difference.
Audio Dithering: What You Need to Know | Waves
https://www.waves.com/audio-dithering-what-you-need-to-know
Type 1 is designed to remove any quantization distortion from your audio. It’s comprised of dither noise that’s modified by noise-shaping. Waves recommends it for 16-bit and 20-bit processing. By adding the Type 1 dither, the 16-bit master that you’re bouncing down to, will sound like it’s actually 19-bit.
An Audiophile’s Guide to Quantization Error, Dithering ...
https://hometheaterhifi.com/technical/technical-reviews/audiophiles-guide-quantization-error-dithering-noise-shaping/
Noise shaping is a second method to improve the digital audio that consumers listen to. What it does is lower the noise floor in one place (the audio spectrum; 20 Hz – 20 kHz), and move the noise to another place (out of the audio spectrum), and is accomplished using feedback, as opposed to adding white noise to produce dithering.
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