This version (04 Jan 2021 06:21) was approved by Sanjeeva Reddy.The Previously approved version (12 May 2017 14:21) is available.Diff

Down Sampling

Click here to return to the Multi-rate processing section.

The down sampling 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

NameFormat [int/dec] - [control/audio]Function Description
Pin 0: Inputdecimal- audioInput Signal to be down-sampled.

Output Pins

NameFormat [int/dec] - [control/audio]Function Description
Pin 0: Outputdecimal - audioDownsampled Output

Grow Algorithm

The module can be grown upto 8 channels. All the input signals are downsampled by the same downsample rate.


The downsample factor can be changed by combo box.

GUI Control NameDefault ValueRangeFunction Description
Downsample Factor2 2,3,4,6,8,16 The factor at with the input sample rate will be divided

Change in GUI configuration needs a recompilation of the schematic.

DSP Parameter Information


Supported ICs

  1. ADAU145x
resources/tools-software/sigmastudio/toolbox/multirateprocessing/downsampling.txt · Last modified: 04 Jan 2021 06:14 by Sanjeeva Reddy