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resources:tools-software:sigmastudiov2:modules:advanceddsp:downsampling [14 Jan 2021 11:01] – [Down Sampling] Nikhin Shetty | resources:tools-software:sigmastudiov2:modules:advanceddsp:downsampling [12 May 2021 13:21] (current) – John Joseph | ||
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- | [[resources/ | + | [[resources/ |
====== Down Sampling ====== | ====== Down Sampling ====== | ||
- | {{: | + | {{: |
===== Description ===== | ===== Description ===== | ||
The Down Sampling module is mainly used to get the input samples to a lower the process and sampling rate. For example the bass portion of the audio need not to be processed at higher sampling rates as the frequencies associated with bass are low. | The Down Sampling module is mainly used to get the input samples to a lower the process and sampling rate. For example the bass portion of the audio need not to be processed at higher sampling rates as the frequencies associated with bass are low. | ||
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\\ | \\ | ||
===== Targets Supported ===== | ===== Targets Supported ===== | ||
- | ^Name^ADSP-214xx(Sample)^ADSP-214xx(Block)^ADSP-215xx/ | + | ^ Name ^ ADSP-214xx ^ ADSP-215xx/ |
- | |DownSampler| No | No|No| Yes| | + | | ------------------------------ |
+ | | Down-Sampler | ||
\\ | \\ | ||
===== Pins ===== | ===== Pins ===== | ||
==== Input ==== | ==== Input ==== | ||
^Name^Type^Description^ | ^Name^Type^Description^ | ||
+ | | ---------------------- | -------------- | ---------------------- | | ||
|Input|Audio|Input channel| | |Input|Audio|Input channel| | ||
==== Output ==== | ==== Output ==== | ||
^Name^Type^Description^ | ^Name^Type^Description^ | ||
+ | | ---------------------- | -------------- | ---------------------- | | ||
|Output|Audio|Down sampled output| | |Output|Audio|Down sampled output| | ||
\\ | \\ | ||
===== Configurable Parameters ===== | ===== Configurable Parameters ===== | ||
+ | ==== ADSP-214xx/ | ||
^GUI Parameter Name^Default^Range^Function Description^ | ^GUI Parameter Name^Default^Range^Function Description^ | ||
+ | | ---------------------------------------- | ---------------------- | ------------------ | ---------------------------------------- | | ||
|Factor|2|2, | |Factor|2|2, | ||
|AntiAliasFilter|False|True/ | |AntiAliasFilter|False|True/ | ||
+ | \\ | ||
+ | ==== ADAU145x/ | ||
+ | ^GUI Parameter Name^Default^Range^Function Description^ | ||
+ | | ---------------------------------------- | ---------------------- | ------------------ | ---------------------------------------- | | ||
+ | |NumChannels|1|1-20|Number of channels| | ||
+ | |Factor|2|2, | ||
\\ | \\ | ||
===== DSP Parameters ===== | ===== DSP Parameters ===== | ||
- | ^Name^Description^ADSP-214xx/ | + | ^Name^Description^ADSP-214xx/ |
- | |Factor |The factor at with the input sample rate will be divided|Float| | + | | --------------------------- | ---------------------------------------------------------------------------------- | ---------------------------------------- | -------------------------- | |
- | |NFilterTaps |Number of antialiasing filter coefficients|Float| | + | |Factor |The factor at with the input sample rate will be divided|Float|FixedPoint8d24| |
- | |FIRCoeffs |coefficients|Float| | + | |NFilterTaps |Number of antialiasing filter coefficients|Float|NA| |
+ | |FIRCoeffs |coefficients|Float|NA| | ||
\\ | \\ | ||
- | ===== DSP Parameter Computation ===== | + | |
- | NFilterTaps | + | |