This version (18 May 2021 08:43) was approved by John Joseph.The Previously approved version (18 Mar 2021 15:39) is available.
Table of Contents
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Synchronous SRC
Description
Synchronous SRC is a multi-rate processing module which interpolates or decimates the input signal sampled at the input signal to the desired signal at output sample rate. The module supports fractional (FSin/FSout) ratios. Currently the module supports conversion from 48KHz sample rate to 44.1KHz and vice versa.
Usage
The module acts as an upsampler when the output sample rate is greater than the input sample rate. The module acts as an down sampler when the input sample rate is greater than the output sample rate.
Targets Supported
| Name | ADSP-214xx | ADSP-215xx/SC5xx | ADAU145x/146x |
|---|---|---|---|
| —————————— | ——————-- | ——————————-- | —————————- |
| Synchronous SRC | NA | NA | S |
Pins
Input
| Name | Type | Description |
|---|---|---|
| ———————- | ————-- | ———————- |
| Input0 | Audio | Input signal to the module |
Output
| Name | Type | Description |
|---|---|---|
| ———————- | ————-- | ———————- |
| Output0 | Audio | Output signal from the module |
Configurable Parameters
| GUI Parameter | Default Value | Range | Function Description |
|---|---|---|---|
| —————————————- | ———————- | —————— | —————————————- |
| FS Out | 44.1 KHz | 44.1 KHz and 48KHz | Output sampling frequency, this is the sampling frequency at which the input signal at the input sampling frequency is re-sampled to |
| Memory | DM0 | DM0/DM1 | Memory selection to which the filter coefficients are loaded to |
DSP Parameters
| Parameter Name | Description | ADAU145x/146x | |
|---|---|---|---|
| —————————————- | ——————————————————————————-- | —————————————- | —————————- |
| FilterCoeffs | Interpolating filter coefficients | FixPoint8d24 | |
| constants | Constants used in the algorithm | FixPoint8d24 |
resources/tools-software/sigmastudiov2/modules/advanceddsp/synchronoussrc.txt · Last modified: 12 May 2021 13:22 by John Joseph