This version (09 Aug 2023 13:24) was approved by John Joseph.The Previously approved version (12 May 2021 17:31) is available.
Table of Contents
Click here to return to the Filters page
FIR Filter
Description
The FIR Filter block lets you design any FIR filter desired.Frequency response can be shaped by specifying the appropriate coefficients.
Usage
This block has numeric textbox to edit the tap size for number of coefficients to be used for FIR Filter calcualtion. Click on 'table' button to open the table editor window to enter the calculated coefficients as per desired filter requirement.
Targets Supported
| Name | ADSP-214xx | ADSP-215xx/SC5xx | ADAU145x/146x |
|---|---|---|---|
| ————————- | ——————-- | ——————————-- | —————————- |
| FIR Filter | B/S | B/S | S |
Pins
Input
| Name | Type | Description |
|---|---|---|
| —————————— | —————————— | ———————————————— |
| Input0 | Audio | Input Channel 0 |
Output
| Name | Type | Description |
|---|---|---|
| —————————— | —————————— | ———————————————— |
| Output0 | Audio | Output channel 0 |
Configurable Parameters
| GUI Parameter Name | Default Value | Range | Function Description |
|---|---|---|---|
| ————————————— | ————————— | ——————————————— | ———————————————————- |
| NoOfTableValues | 10 | 2 to 10000 | Specifies the number of the coefficients used for FIR filter calculation |
| ByPassEnable | False | True/False | Enabled/Disabled the FIR filter algorithm |
| TableValues | -infinity to + infinity | Coefficients used to calcualte the FIR Filter | |
| NumChannels | 1 | 20 | Number of input and output channels. Change in Channels requires re-compilation |
DSP Parameters
| Parameter Name | Description | ADSP-214xx/SC5xx/215xx | ADAU145x/146x |
|---|---|---|---|
| ———————————— | ———————————————————————————————— | —————————————- | —————————- |
| NoOfTableValues | Specifies the number of the coefficients used for FIR filter calculation | Integer32 | Integer32 |
| TableValues | Coefficients used to calcualte the FIR Filter | Float | FixPoint8d24 |
resources/tools-software/sigmastudiov2/modules/filters/firfilter.txt · Last modified: 09 Aug 2023 12:15 by Chiranjeevi Palle