This version is outdated by a newer approved version.
This version (06 Oct 2017 14:59) was approved by Venkatesan Krishnamoorthy.The Previously approved version (21 Dec 2016 11:23) is available.
This version (06 Oct 2017 14:59) was approved by Venkatesan Krishnamoorthy.The Previously approved version (21 Dec 2016 11:23) is available.This is an old revision of the document!
Table of Contents
Up Sampling
Click here to return to the Multi-rate processing section.
The Up sampling module is mainly used to get the input samples to a higher sampling rates after processing the audio at lower sampling rates.For example the bass of the audio can be processed at lower sampling rates and then taken to the higher sampling rates.
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===== Input Pins =====
^Name^Format [int/dec] - [control/audio]^Function Description^
|Pin 0: Input|decimal- audio|Input Signal to be up-sampled.|
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===== Output Pins =====
^Name^Format [int/dec] - [control/audio]^Function Description^
|Pin 0: Output|decimal - audio|Upsampled Output|
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===== Grow Algorithm =====
The module can be grown upto 8 channels. All the input signals are upsampled by the same upsample rate.
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===== Configurations =====
The upsample factor can be changed by combo box.
^GUI Control Name^Default Value^Range^Function Description^
|Upsample Factor|2| 2,3,4,6,8,16 |The factor at with the input sample rate will be multipiled|
|LPF|Checked|Checked/Unchecked|If checked, a low pass filter will be applied after upsampling the signal|
The upsampler can either insert zeros or repeat the previous sample(Zero Order Hold) during upsampling. This can be configured in the contex menu.
{{ :resources:tools-software:sigmastudio:toolbox:multirateprocessing:upsample.png?nolink |](/_media/resources/tools-software/sigmastudio/toolbox/multirateprocessing/upsampling.png "\\
===== Input Pins =====
^Name^Format [int/dec] - [control/audio]^Function Description^
|Pin 0: Input|decimal- audio|Input Signal to be up-sampled.|
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===== Output Pins =====
^Name^Format [int/dec] - [control/audio]^Function Description^
|Pin 0: Output|decimal - audio|Upsampled Output|
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===== Grow Algorithm =====
The module can be grown upto 8 channels. All the input signals are upsampled by the same upsample rate.
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===== Configurations =====
The upsample factor can be changed by combo box.
^GUI Control Name^Default Value^Range^Function Description^
|Upsample Factor|2| 2,3,4,6,8,16 |The factor at with the input sample rate will be multipiled|
|LPF|Checked|Checked/Unchecked|If checked, a low pass filter will be applied after upsampling the signal|
The upsampler can either insert zeros or repeat the previous sample(Zero Order Hold) during upsampling. This can be configured in the contex menu.
{{ :resources:tools-software:sigmastudio:toolbox:multirateprocessing:upsample.png?nolink |")
Change in the 'Insertion Type' , 'Upsample Factor' or 'LPF' needs a recompilation of the schematic.
DSP Parameter Information
None
Supported ICs
- ADAU145x
resources/tools-software/sigmastudio/toolbox/multirateprocessing/upsampling.1494591829.txt.gz · Last modified: 12 May 2017 14:23 by Suhasini Raghuram