This version (18 May 2021 08:58) was approved by John Joseph.The Previously approved version (15 Jan 2021 11:07) is available.
Table of Contents
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Peak w/Ext Detector
Description
The Peak w/Ext Detector Compressor block computes the peak level of the control signal, if peak of the signal is more than threshold, signal level is changes to new peak level and if the peak level is below the threshold level, it slowly reaches reaches the new peak level by accounting the hold and decay time.
Variants
- Peak w/Ext Detector
- Peak w/Ext Detector with Gain Out
Targets Supported
| Name | ADSP-214xx | ADSP-215xx/SC5xx | ADAU145x/146x |
|---|---|---|---|
| ——————————————————-- | —————————- | ——————————-- | —————————- |
| Peak w/Ext Detector | B/S | B/S | S |
| Peak w/Ext Detector with Gain Out | NA | NA | S |
Pins
Input
| Name | Type | Description |
|---|---|---|
| ————————————— | —————————— | ———————————————— |
| ExtDetectorInput | Control | Peak input for the compressor |
| Input1 | Audio | Input channel1 |
Output
| Name | Type | Description |
|---|---|---|
| ————————————— | —————————— | ———————————————— |
| Output1 | Audio | Output channel1 |
Configurable Parameters
| GUI Parameter Name | Default Value | Range | Function Description |
|---|---|---|---|
| ———————————————- | —————————- | ————————————- | —————————————————————- |
| Hold | 0 ms | 0 to 2000 ms | Controls the time (in ms) the compressor maintains its current output gain setting before it starts decreasing as the input level decrease. |
| Decay | 10 dB/s | 0 to 10000 dB/s | Controls the rate at which the compressor gain decreases in response to decrease in the input signal level, e.g. the “Release” time. |
| SoftKnee | False | True/False | Soft-knee lets the compressor ease into action, making a less-abrupt change from unprocessed signal to compressed signal. If it is not activated, the default is hard-knee behavior, in which compression rate reduces or increases abruptly with the threshold level |
| Table | All values are 1 | - | Table values are the gain points used to apply for input signal level |
| IsDBps | True | True/False | Enable /Disable the control's Decay either in dB or linear scale |
| NumChannels | 1 | 1 to 20 | Number of input and/or output channels. Change in this value requires re-compilation |
DSP Parameters
| Parameter Name | Description | ADSP-214xx/SC5xx/215xx | ADAU145x/146x |
|---|---|---|---|
| —————————— | —————————————— | ——————————————- | ———————————————- |
| Hold | Hold value | Float | 8.24 format |
| Decay | Decay value | Float | 8.24 format |
| Table | Table values | Float | 8.24 format |
DSP Parameter Computation
Decay = (20000/Decay)/(FS + 0.0000001) (When Decay is in dBps) or Decay/(FS + 0.0000001) (When Decay is in linear)
Hold = FS * Hold/1000
Where FS is the sampling rate
resources/tools-software/sigmastudiov2/modules/dynamicsprocessors/peakwithexternaldetectorinput.txt · Last modified: 12 May 2021 09:36 by John Joseph