This version (09 Jul 2019 08:16) was approved by Prasad Kamath.
Table of Contents
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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
| 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
resources/tools-software/sigmastudio/toolbox/filters/biquad8ch4cascades.txt · Last modified: 25 Jun 2019 13:55 by Prasad Kamath