Quantization, Dithering, and Noise Shaping
Predefined
Local files
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Quantization word length
This script demonstrates audio effects resulting from Quantization. It is designed for a first insight into the perceptual effects of quantizing an audio signal.
The following options can be set in the lower part of the user interface
- Quantizer
- word length w leads to quantization step size Q=2⁻⁽ʷ⁻¹⁾
- word length w leads to quantization step size Q=2⁻⁽ʷ⁻¹⁾
- Dither
- rect dither - uniform probability density function
- tri dither - triangular probability density function
- high-pass dither - triangular probability density function and high-pass power spectral density
- Noise shaping
- first-order H(z)=z⁻¹
- second-order H(z)=-2z⁻¹+z⁻²
- psychoacoustic noise shaping
You can choose between two predefined audio signals or your own local audio file to be processed.
Predefined music signal is licensed under CC-BY-3.0 by unfinite.