This version (02 Jan 2023 10:46) was approved by Jagan M.
Table of Contents
Down-Sampler
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The down-sampler module is mainly used to get the input samples to a lower sampling rate and process. For example the bass portion of the audio need not be processed at higher sampling rates as the frequencies associated with bass are low.
This module takes the downsample factor from the GUI parameters and down sample the input accordingly.
Input Pins
| Name | Format [int/dec] - [control/audio] | Function Description |
|---|---|---|
| Pin 0: Input | decimal- audio | Input Signal to be down-sampled. |
Output Pins
| Name | Format [int/dec] - [control/audio] | Function Description |
|---|---|---|
| Pin 0: Output | decimal - audio | Downsampled Output |
Grow Algorithm
The module currently does not support grow functionality.
Add Algorithm
Add Algorithm with multiple instance support is available in this module.
Configurations
The downsample factor can be changed by combo box.
| GUI Control Name | Default Value | Range | Function Description |
|---|---|---|---|
| Factor | 2 | 2,4,8,16,32 | The factor at with the input sample rate will be divided |
| AntiAliasFilter | False | True/False | Enabled/Disabled the anti-alias filter. If enabled, anti-alias filter will be applied before DownSampling the signal |
Supported ICs
- ADSP-SC58x
- ADSP-215xx
DSP Parameters
| Name | Description | ADSP-214xx/215xx/SC5xx |
|---|---|---|
| ————————— | ———————————————————————————- | —————————————- |
| Factor | The factor at with the input sample rate will be divided | Float |
| NFilterTaps | Number of antialiasing filter coefficients | Float |
| FIRCoeffs | coefficients | Float |
resources/tools-software/sigmastudio/toolbox/advanceddsp/downsampler.txt · Last modified: 02 Jan 2023 10:07 by ananthakalyani Sankar