It should be the very last step in your mastering chain.
In audio, dithering is the process of adding a minute amount of random noise to a signal to mask "quantization distortion". This is essential whenever you reduce the of a file (e.g., from 32-bit to 16-bit for CD or streaming). N0len07 Ditheri
Advanced tools like iZotope's MBIT+ use psychoacoustic methods to shift this added noise into frequencies the human ear is less sensitive to, making the audio sound cleaner. 2. Astrophotography It should be the very last step in your mastering chain