There are several ways dither can be used in Pro Tools. Each has a specific application within the various operations that could benefit from using dither.
Whenever you are mixing down or bouncing to disk and your destination bit depth is lower than 24-bit, insert a dither plug-in on a Master Fader that controls the output mix. You can use real-time dither plug-ins from Avid or third-party manufacturers.
In the Fades dialog (
Edit > Fades > Create), the
Use AudioSuite Dither option enables a preset, noise-shaped dither.
When you export audio to a lower bit depth, or when you import an audio file into a session that is at a lower bit depth than the file, a preset, noise-shaped dither is applied.
Avid has developed a mixer that provides all of the benefits of the standard Stereo Mixer and Surround Mixer plug-ins, but also provides uncorrelated dither on any summed output. There are two Mixer plug-ins that feature dither with noise shaping: Stereo Dithered Mixer and Surround Dithered Mixer.