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Digital Audio Chapter Five: Quantization 2
https://cmtext.indiana.edu/digital_audio/chapter5_quantize2.php
Higher bit-depth files can be reduced back to 16-bit for things like CD burning. This process is often enhanced by using a process called dither, which tries to minimize the inducement of further digital noise and harmonic distortion caused by simple truncation. Dither allows higher bit depths, such as 20- and 24-bit files to be reduced to 16 ...
Quantization Noise - an overview | ScienceDirect Topics
https://www.sciencedirect.com/topics/engineering/quantization-noise
The analysis of A/D signal-to-noise ratio in Chapter 3 showed that the average power of the quantization noise is q 2 /12. Due to the limits of sampling theory, in the frequency domain the spectrum is constrained to the frequencies between ± F s /2. This characteristic is represented in Figure 5-8.By definition, in an oversampling A/D the bandwidth of the input signal is …
Quantization Noise
https://classes.engineering.wustl.edu/ese488/Lectures/Lecture5a_QNoise.pdf
Quantization Noise Quantization is the mapping of a range of analog voltage to a single value. Staircase curve of a linear N Bit ADC Converter • Assume that the input in “busy”, moderate signal level. • Green curve is a scaled version of Vin without any quantization. • …
Digital Audio - GitHub Pages
https://juhannam.github.io/ctp431/2018/slides/03-digital_audio.pdf
•Quantization •Digital audio standards ... •Quantizationcauses noise-Average power of quantization noise: obtained from the probability density function (PDF) of the error
Digital Audio Chapter Five: Quantitization
https://cmtext.indiana.edu/digital_audio/chapter5_quantize.php
6. Quantizing, Approximation Errors and Sample Size. Samples, the periodic snapshots of the instantaneous amplitude of an input signal taken by the ADC, are assigned numeric values that the computer or digital circuit can use in a process called quantization.The number of available values which can be assigned is determined by the number of bits (0's and 1's) used for each …
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.
quantization - why does quantisation noise sound like ...
https://dsp.stackexchange.com/questions/40446/why-does-quantisation-noise-sound-like-white-noise
The quantization noise of a sine wave is fairly harmonic with a clearly detectable pitch. The quantization of a pulse train sounds like a pulse train. If the quantization has enough bits, and if the signal is reasonably stationary in time and reasonably dense in the frequency domain, the quantization noise will be more or less white.
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