Sonoris Dither is a professional high-quality audio mastering plugin. With this plugin, you can quantize sound with a lower bit depth using dithering and / or noise generation. The type of dithering can be selected between TPDF and TPDF High Pass (HP). TPDF is short for Triangular Probability Densitity Function, a form of dithering that eliminates non-linear distortion during re-quantization and has no signal modulation artifacts.