Posted on by Debanka

Fader Matrix

The FaderMatrix audio object is used to calculate the weighted output based on a combination of input audio where the weighting factors are provided as control input.

Use Case: The FaderMatrix takes in a configurable number of input, output and control channels. Each output of this object is a weighted sum of all the input channels where weighting factors can be tuned from control inputs.

Fader Matrix Properties

Below table describes about the FaderMatrix audio object properties and functionality.

Properties Description
# of Audio In Number of input channels.

  • Range: 1 to 64
  • Default: 2
# of Audio Out Number of output channels.

  • Range: 1 to 64
  • Default: 2
# of Elements Number of Control Inputs.

  • Range: 0 to 64
  • Default: 0
Display Name Display the name of the FaderMatrix audio object in signal flow design. It can be changed based on the intended usage of the object.

Mode

There are no modes available for FaderMatrix audio object.

Additional Parameters

The FaderMatrix audio object can be configured with the following additional parameter:

Parameters Description
Gain Type The audio object has an additional configuration ‘Gain Type’ to specify the weighting factors scale.

  • 0 – Linear [default]: Weights are configurable in a linear scale in the range of -100 to 100.
  • 1 – Logarithmic: Weights are configurable in a logarithmic scale in the range between -128 to 40 dB.

Tuning Parameters

The FaderMatrix audio object has one control index tuning parameter for each input channel that will used to compute the output of each channel. Thus there will be NumInputs * NumOutputs control indices (tuning parameters).

When the control index is set to zero, none of the control inputs will be used and this particular input will not be considered for computation of that particular output

Parameter Description Range Unit
Control Index Index of the control input for selecting weight factor for each input and output combination. 0 to NumElements None

Control Interface

The FaderMatrix control is triggered whenever a control message is addressed to the audio object. The FaderMatrix audio object has configurable control input pins for weighting factors.

Parameter Description Gain Type Data Type Range Default Unit
Weighting Factor Weight factor for each input and output combination. Linear Float -100 to 100 0 None
Logarithmic Float -128 to 40 -128 dB

Native Panel

The FaderMatrix AO does not support native panel.