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resources:tools-software:sigmastudiov2:modules:advanceddsp:downsampling [14 Jan 2021 11:01] – [Down Sampling] Nikhin Shettyresources:tools-software:sigmastudiov2:modules:advanceddsp:downsampling [12 May 2021 13:21] (current) John Joseph
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-[[resources/tools-software/sigmastudiov2/modules/advanceddsp|Click here to return to the AdvancedDSP page]]+[[resources/tools-software/sigmastudiov2/modules/advanceddsp|Click here to return to the Advanced DSP page]]
 ====== Down Sampling ====== ====== Down Sampling ======
  
-{{:resources:tools-software:sigmastudiov2:modules:advanceddsp:downsampler.png?200|}}+{{:resources:tools-software:sigmastudiov2:modules:advanceddsp:downsampler.png?150|}}
 ===== 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/ADSP-SC5xx(Sample)^ADSP-215xx/ADSP-SC5xx(Block)+^ Name            ^ ADSP-214xx ^ ADSP-215xx/SC5xx ^ ADAU145x/146x 
-|DownSamplerNo No|NoYes|+------------------------------ -------------------- | -------------------------------- | ---------------------------- | 
 +| Down-Sampler   B          B                S              |
 \\ \\
 ===== 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/ADSP-215xx/ADSP-SC5xx ====
 ^GUI Parameter Name^Default^Range^Function Description^ ^GUI Parameter Name^Default^Range^Function Description^
 +| ---------------------------------------- | ---------------------- | ------------------ | ---------------------------------------- |
 |Factor|2|2,4,8,16,32|The input sample rate will be divided by Factor| |Factor|2|2,4,8,16,32|The input sample rate will be divided by Factor|
 |AntiAliasFilter|False|True/False|Enabled/Disabled the anti-alias filter. If enabled, anti-alias filter will be applied before DownSampling the signal| |AntiAliasFilter|False|True/False|Enabled/Disabled the anti-alias filter. If enabled, anti-alias filter will be applied before DownSampling the signal|
 +\\
 +==== ADAU145x/ADAU146x ====
 +^GUI Parameter Name^Default^Range^Function Description^
 +| ---------------------------------------- | ---------------------- | ------------------ | ---------------------------------------- |
 +|NumChannels|1|1-20|Number of channels|
 +|Factor|2|2,3,4,6,8,16|The factor at with the input sample rate will be divided|
 \\ \\
 ===== DSP Parameters ===== ===== DSP Parameters =====
-^Name^Description^ADSP-214xx/215xx/SC5xx^ +^Name^Description^ADSP-214xx/215xx/SC5xx^ADAU145x/ADAU146x^ 
-|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  =  Factor >= 16 ? 97:49+
  
resources/tools-software/sigmastudiov2/modules/advanceddsp/downsampling.1610618464.txt.gz · Last modified: 14 Jan 2021 11:01 by Nikhin Shetty