Mixer Presets; Storing New Mixer Presets - Merging Pyramix User Manual

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:
Off
No noise shaping added.
Hi Pass
This provides a first-order high-pass filter for the noise transfer function. This type of noise shaping takes little
computational power to produce, but at the expense of not Tracking the characteristics of the human ear very
accurately when compared with:
Acoustic
Psycho acoustically noise shaped dither inserts an FIR-filter in the feedback path. This shapes the noise as closely
as possible to the characteristics of the human ear. More taps in this type of filter allow a closer approximation to
the response curve of the ear, but each tap, of course, increases the computational instructions required. The filter
implemented here is a 9-tap FIR-filter, which closely approximates the curve of the human ear.
Note: As usual there is no "free lunch". So Acoustic noise-shaping uses more resources than Hi
Pass.
POW-r
POW-r offers the choice of three settings, POW-r 1 , POW-r 2 and POW-r 3 . The graph indicates the effect of the
noise-shaping.

Mixer Presets

Mixer Presets can be saved in a user folder or added to the main Mixer Preset list either for the current user or all
users.
Default Mixer
To Save the current Mixer setup as the default Mixer, right click on the Mixing Console and select Memory > Pre-
sets > Store > Default .

Storing New Mixer Presets

To add a preset to the main list of available Mixer presets I.e. the list which appears when starting a new project,
right click on the Mixing Console, select Memory > Presets > Store > New... and enter a name for your Mixer Pre-
Dithering POW-r floating Window
Mixer : Mixer Presets 10 - 253