Triangular-PDF is just the type of noise which is added for dither, to replace the quantization noise.
Noise shaping:
The inverse quantization error of sample N is feed back as noise for sample N+1
You can also put fancy filters into the feedback loop and add random noise as well.
Triangular-PDF is just the type of noise which is added for dither, to replace the quantization noise.
Noise shaping:
The inverse quantization error of sample N is feed back as noise for sample N+1
You can also put fancy filters into the feedback loop and add random noise as well.
Like shown here: www.production- partner. de/wp-content/ uploads/ 2015/03/ Delta-sigma- noise-shaper. png
http://
This is implemented in https:/ /sourceforge. net/p/sox/ code/ci/ master/ tree/src/ dither. h