This version (21 Sep 2022 13:17) was approved by Angu Sewa.The Previously approved version (04 Feb 2020 10:43) is available.
Table of Contents
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RMS Hold
Description
The RMS Hold block computes the RMS of the input signals with time constant specified in the text field and holds the maximum value. Hold/Reset the maximum rms value is controlled by the external input pin.
Targets Supported
| Name | ADSP-214xx | ADSP-215xx/SC5xx | ADAU145x/146x |
|---|---|---|---|
| ———————————————————— | ——————-- | ——————————-- | —————————- |
| RMS Hold | B/S | B/S | NA |
Pins
Input
| Name | Type | Description |
|---|---|---|
| —————————— | ———————————————————— | —————————— |
| Reset | Control | Reset/Hold the maximum rms value |
| Input X | Audio | Input channel X |
Output
| Name | Type | Description |
|---|---|---|
| —————————— | ———————————————————— | —————————— |
| Output X | Audio | Output channel X |
Note:
- X - Channel Index
Configurable Parameters
| GUI Parameter Name | Default Value | Range | Function Description |
|---|---|---|---|
| —————————— | ————————— | —————————- | ———————————————————- |
| TimeConstant | 121 | 1-8686 | Determines how rapidly the RMS value compute with change in input level |
| IsDBps | False | Truie/False | Control value is in dB/s or ms |
| NumChannels | 1 | 20 | Number of input and Output channels. Change in this value requires re-compilation |
DSP Parameters
| Parameter Name | Description | ADSP-214xx/SC5xx/215xx | ADAU145x/146x |
|---|---|---|---|
| —————————————- | ——————————————————————————-- | —————————————- | —————————- |
| TimeConstant | TC for RMS value compute with change in input level | Float | NA |
| LogCoeff | Constant values | Float | NA |
DSP Parameter Computation
TimeConstant = ABS(1-10^(TimeConstant(linear)/(10*FS)))
Where FS is the Sampling rate
resources/tools-software/sigmastudiov2/modules/basic/rmshold.txt · Last modified: 10 May 2021 06:23 by Nikhin Shetty