World benchmark processing:
64-bit SRC best in class sample rate conversion technology.
See by yourself this comparison with other leading algorithms
For more reading, read the iZotope primer on 64-bit SRC
Dithering is meant to reduce the audible impact of the inevitable reduction in the audio signal precision when reducing the bitdepth, which happens when using a digital volume control.
iZotope MBIT+ is the leading technology that pushes the noise way out of the audible spectrum.
iZotope 64-bit SRC™, iZotope MBIT+™, iZotope®; © 2011 iZotope, Inc. All Rights Reserved.