Psycho dither is a type of audio dithering that utilizes psychoacoustic principles to mask the artifacts introduced when reducing the bit depth of a digital audio signal. It aims to make the introduced noise less audible by shaping it to align with how the human ear perceives sound.
Here's a more detailed explanation:
Dithering in Audio:
When reducing the bit depth of an audio signal (e.g., from 24-bit to 16-bit), quantization errors occur, leading to noticeable noise, especially in quiet passages or at the end of fades.
Psychoacoustic Principles:
Psychoacoustics studies how humans perceive sound. Dithering algorithms can be designed to exploit these principles, making the dither noise less noticeable by shaping its frequency content.
Psycho Dither:
Stillwell Audio's Psycho Dither plugin is an example of a psychoacoustic dither. It offers different dither "colors" and allows for adjustments to the noise shaping, aiming to provide exceptional audio fidelity, even at low bit depths.
Benefits of Psycho Dither:
By using psychoacoustic principles, Psycho Dither can make the dither noise less intrusive, allowing for a better listening experience, especially when working with legacy formats or hardware.
Practical Use:
Psycho dither is particularly useful when working with content intended for embedded systems, phone systems, or point-of-sale systems, where bit depth may be limited.
Buy Here: https://www.stillwellaudio.com/plugins/psycho-dither
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