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This version (09 Jul 2019 08:16) was approved by Prasad Kamath.

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Biquad Cascade 8 channel 4 cascade


This Infinite Impulse Response (IIR) filter consists of a cascade of 4 Biquad sections and 8 audio input channels.


Input Pins

NameFormat [int/dec] - [control/audio]Function Description
Pin 0: Input1 decimal - Audio Audio ch1 Input
Pin 1: Input2 decimal - Audio Audio ch2 Input
Pin 2: Input3 decimal - Audio Audio ch3 Input
Pin 3: Input4 decimal - Audio Audio ch4 Input
Pin 4: Input5 decimal - Audio Audio ch5 Input
Pin 5: Input6 decimal - Audio Audio ch6 Input
Pin 6: Input7 decimal - Audio Audio ch7 Input
Pin 7: Input8 decimal - Audio Audio ch8 Input


Output Pins

NameFormat [int/dec] - [control/audio]Function Description
Pin 0: Output1 decimal - AudioFiltered ch1 Output
Pin 1: Output2 decimal - Audio Filtered ch2 Output
Pin 2: Output3 decimal - Audio Filtered ch3 Output
Pin 3: Output4 decimal - Audio Filtered ch4 Output
Pin 4: Output5 decimal - AudioFiltered ch5 Output
Pin 5: Output6 decimal - Audio Filtered ch6 Output
Pin 6: Output7 decimal - Audio Filtered ch7 Output
Pin 7: Output8 decimal - Audio Filtered ch8 Output


Grow Algorithm

The module does not support Add and Growth.

Configuration



GUI Control NameDefault ValueRangeFunction Description
Enable off on/off Enables filtering, when disabled audio output is 0
Coefficients NA NA A table containing the user entered IIR filter coefficients (in order d11,d12,n10,n11,n12,d21…n42)



DSP Parameter Information

GUI Control NameCompiler NameFunction Description
CoefficientsBiquadCascade8ch4_SC5xxAlg1Coeffs_8ch4 IIR filter coefficients entered in the order d11,d12,n10,n11,n12,d21…n42
EnableBiquadCascade8ch4_SC5xxAlg1Enable Enables filtering



Here,

  • Green - Algorithm Name
  • Red - Instance Number (Changes for each instance)
  • Blue - Parameter Name



Algorithm Description

This Infinite Impulse Response (IIR) filter consists of a cascade of 4 Biquad sections and 8 audio input channels. The transfer function is as shown below

Supported ICs

  1. ADSP215xx
  2. ADSPSC5xx
resources/tools-software/sigmastudio/toolbox/filters/biquad8ch4cascades.txt · Last modified: 25 Jun 2019 13:55 by Prasad Kamath