Dithering Options; Dither Type; Pdf (Probability Density Function) - Merging Pyramix User Manual

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Dithering Options

To open the ReDithering window, right-click anywhere on the mixer surface and select Settings > Dithering...
The Dithering window opens.
Selected Bus :
The combo box allows the choice of any of the Mixer's buses.

Dither Type

The Pyramix Mixer offers a choice of dither algorithms. MT-r and POW-r click the box to choose. The bottom-right
hand panel changes to reflect the options available with the selected dither process.
Word Length
The output word length of the digital audio data can be varied from 8 bits to 24 bits. Click on the rotary knob and
drag left and right to adjust the value.
MT-r Options

PDF (Probability Density Function)

In basic terms, the addition of a dither signal (noise) into the digital audio streams improves linearity in the repro-
duction of low-level signals. In other words, as signal level drops (such as in a fade out) dithering helps to maintain
a smooth decay. There are three options:
None
No dither signal will be added to the data.
Rectangular
A rectangle shape dither signal will be added to the data.
Triangular
A triangle shape dither signal will be added to the data.
Noise Shaping
Noise shaping is a technique that is used to push quantization noise energy, which in linear digital systems is nor-
mally spread over the whole audio spectrum (0 Hz up to half the sampling frequency), into higher frequencies
where the human ear is less sensitive to its effects. There are three noise shaping options and the graph shows the
curve applied:
When checked, a narrow colored bar is inserted at the bottom of each input strip which
indicates which card (in a multi-board system) is providing the DSP for the strip.
Mixer : Dithering Options
Dithering MT-r floating Window
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