User Manual

Master Section
OZONE 7 | MASTERING SECTIONS
80
Dither Amount
This sets the number of bits or amount of dither that will be used. The dithering amount can be
varied among O, Medium, and Strong.
The O and Low settings can leave some non-linear quantization distortion or dither noise
modulation, while the strong setting completely eliminates the non-linear distortion at the expense
of a slightly increased noise floor. In general, the medium dither amount is a good choice.
Harmonic Suppression
If, for some reason, any dithering noise is undesirable, simple truncation remains the only option.
Truncation results in harmonic quantization distortion that adds overtones to the signal and distorts
the timbre.
In this case you can click the Harmonic Suppression button to slightly alter the truncation rules,
moving the harmonic quantization distortion away from overtones of audible frequencies.
This option doesn’t create any random dithering noise floor. Instead it works more like truncation,
but with better tonal quality in the resulting signal.
Limit Peaks
Dither noise is random in nature, and has a very low amplitude. However, after noise shaping,
especially in aggressive dithering modes, the high-frequency dither noise is significantly amplified,
and the overall dither signal can show spurious peaks (up to -60 dB FS for a 16-bit quantization).
If such high peaks are undesirable, you can click the Limit Peaks button to eectively suppress the
spurious peaks in the noise-shaped dither.
Auto-blanking
Selecting this option will completely mute dither output (i.e. dither noise) when the input signal is
completely silent (0 bits of audio) for at least 0.7 seconds.
Noise Shaping
Click here to choose the amount of noise shaping that is applied during the dithering process.
Noise shaping pushes the noise necessary for dithering into less audible frequency ranges,
allowing for greater dithering with less perceived noise.
You can control the aggressiveness of this shaping, ranging from O (no shaping) through Max
(roughly 14 dB of audible noise suppression).
Dierent amounts of noise shaping will have subtle eects on the sound quality of the dither
process, so experiment with the dierent settings with your particular program material.