This version (30 Dec 2022 13:34) was approved by ananthakalyani Sankar.

Loudness With Filter


The Loudness with filter block applies the filter to the input signal and loudness will apply to the filtered signal. The loudness with the filter block gives access to a variety of filter algorithms. The available filter types are

  • Second-Order Low Shelf
  • Second-Order High Shelf
  • Parametric
  • First-Order Low Shelf
  • First-Order High Shelf
  • Peaking


To access the filter click on the icon button and icon button image will change to reflect the selected filter type

Targets Supported

Name ADSP-214xx ADSP-215xx/SC5xx ADAU145x/146x
Loudness With Filter Block Block NA



ControlInputControlExternal volume controls the loudness applied to the filtered input signal
Input0AudioInput Channel0


Output0AudioOutput channel0

Configurable Parameters

GUI Parameter NameDefault ValueRangeFunction Description
Boost0dB-20 to 20 dB Set the boost value for a particular filter curve
Frequency1000Hz20 to 20000HzThe cutoff frequency of the filter
Q1.40 to 15Q Factor of the filter
Gain0dB-15 to 15dBGain used to calcualte the filter coefficnets
EnabledorBypassedTrueTrue/FalseEnabled/Disabled the the algorithm
PhaseFalseFalse/TrueChange the phase of the filter coefficients
FilterTypeLow Shelf Filter - Selects the desired filter type
NumChannels115Number of input and output channels. Change in this value requires re-compilation

DSP Parameters

Parameter NameDescriptionADSP-214xx/SC5xx/215xx
A1Coefficient A1 Float
A2Coefficient A2 Float
B0Coefficient B0 Float
B1Coefficient B1 Float
B2Coefficient B2 Float
resources/tools-software/sigmastudio/toolbox/adialgorithms/loudnesswithfilter.txt · Last modified: 26 Apr 2022 15:51 by ananthakalyani Sankar