Table of Contents
Biquad 3 channel 1 cascade
This 3 channel Infinite Impulse Response (IIR) filter consists of a single Biquad section, five
coefficients, and Direct-Form-2 implementation.
Input Pins
| Name | Format [int/dec] - [control/audio] | Function Description |
|---|---|---|
| Pin 0: Input1 | decimal - Audio | Audio ch1 Input |
| Pin 1: Input1 | decimal - Audio | Audio ch2 Input |
| Pin 2: Input1 | decimal - Audio | Audio ch3 Input |
Output Pins
| Name | Format [int/dec] - [control/audio] | Function Description |
|---|---|---|
| Pin 0: Output | decimal - Audio | Filtered ch1 Output |
| Pin 1: Output1 | decimal - Audio | Filtered ch2 Output |
| Pin 2: Output2 | decimal - Audio | Filtered ch3 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 d1, d2, n0, n1, n2) |
DSP Parameter Information
| GUI Control Name | Compiler Name | Function Description |
|---|---|---|
| Coefficients | BiquadCascade3ch1_SC5xxAlg1Coeffs_3ch1 | IIR filter coefficients entered in the order b1,b2,a0,a1,a2 |
| Enable | BiquadCascade3ch1_SC5xxAlg1Enable | Enables filtering |
Here,
- Green - Algorithm Name
- Red - Instance Number (Changes for each instance)
- Blue - Parameter Name
Algorithm Description
3 channel Infinite Impulse Response (IIR) filter consists of a single Biquad section, five
coefficients, and Direct-Form-2 implementation. The transfer function is as shown below
Supported ICs
- ADSP215xx
- ADSPSC5xx