Specifications

Chapter 70: Dither 349
Chapter 70: Dither
Dither is a dither-generation plug-in that is
available in TDM and RTAS formats.
The Dither plug-in minimizes quantization arti-
facts when reducing the bit depth of an audio
signal to 16-, 18-, or 20-bit resolution.
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
track that controls the output mix.
Using a dither plug-in on a Master Fader is pref-
erable to an Auxiliary Input because Master
Fader inserts are post-fader. As a post-fader in-
sert, the dither plug-in can process changes in
Master Fader level.
The Dither plug-in has user-selectable bit reso-
lution and a noise shaping on/off option.
Dither Controls
The Dither plug-in has a Bit Resolution button
and a Noise Shaping button.
Bit Resolution Button
Use this pop-up menu to choose one of three
possible resolutions for the Dither processing.
Set this control to the maximum bit resolution
of your destination.
16-bit Recommended for output to digital de-
vices with a maximum resolution of 16 bits, such
as DAT and CD recorders.
18-bit Recommended for output to digital de-
vices with a maximum resolution of 18 bits.
For more advanced dithering, use the POW-r
Dither plug-in. See “POW-r Dither” on
page 351.
Dither plug-in
For more information on using Dither, see
the Pro Tools Reference Guide.
If you are mixing down to an analog desti-
nation with any 24-bit capable interface,
you do not need to use Dither. This allows
maximum output fidelity from the 24-bit
digital-to-analog convertors of the inter-
face.