Biquad Cascade 8 channel 4 cascade

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

Name	Format [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

Name	Format [int/dec] - [control/audio]	Function Description
Pin 0: Output1	decimal - Audio	Filtered 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 - Audio	Filtered 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 Name	Default Value	Range	Function 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 Name	Compiler Name	Function Description
Coefficients	BiquadCascade8ch4_SC5xxAlg1Coeffs_8ch4	IIR filter coefficients entered in the order d11,d12,n10,n11,n12,d21…n42
Enable	BiquadCascade8ch4_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

ADSP215xx
ADSPSC5xx

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