This version (30 Jun 2017 10:24) was approved by Venkatesan Krishnamoorthy.The Previously approved version (29 Aug 2016 07:59) is available.Diff

Audio Signal Router

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The Audio Signal Routers cell includes 2 different versions.

  1. Audio Signal Router
  2. Audio Signal Router External Index Selectable

Audio Signal Router

Audio Signal router mixes M different inputs to N different outputs with various gains. The number of input and output pins are configurable.

This module supports multiple mixer configurations. Each mixer configuration has gains for all the inputs and outputs. A separate gain is available for each of input output combination also. All the gains has a corresponding mute control to quickly mute the particular gain. The current Tab selected (Mix #) in the mixer window is downloaded to the target and used for mixing.

The following equations show the calculation of the output for given sample mixer table.

Out0 Out1
Og0 Og1
In0 Ig0 G00 G01
In1 Ig1 G10 G11
  1. Out0 = Og0 * ( G00 * Ig0 * In0 + G10 * Ig1 * In1)
  2. Out1 = Og1 * ( G01 * Ig0 * In0 + G11 * Ig1 * In1)

If the input/output channels are more than 16, then the mixer window is split for 16 input/output channels to improve GUI performance.

Labels for each of the input/output channels can be edited. This updated channel name will pear on the each of the Pin's tooltip as show below.

Audio Signal Router External Index Selectable

This functionality of this module is same as audio signal router except that the current mixer (Mix #) is selected through an external input as shown below. The control pin expects the input in (32.0) format for ADAU145x processors and (28.0) format for other Sigma DSPs.

resources/tools-software/sigmastudio/toolbox/mixerssplitters/audiosignalrouter.txt · Last modified: 16 May 2017 05:55 by Ashwin Radhakrishnan