This version (18 May 2021 08:58) was approved by John Joseph.The Previously approved version (04 Jun 2020 13:42) is available.
Table of Contents
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Envelope Peak
Description
The Envelope Peak block measures the absolute peak value of the input signal and holds the peak level of the incoming signal for the specified time before starts decaying the ramp, when signal level falls.
Variants
- Envelope Peak
- Envelope Peak with Ext Decay
Targets Supported
| Name | ADSP-214xx | ADSP-215xx/SC5xx | ADAU145x/146x |
|---|---|---|---|
| ————————————————————-- | —————————- | ——————————-- | —————————- |
| Envelope Peak | B | B | S |
| Envelope Peak with Ext Decay | B | B | S |
Pins
Input
| Name | Type | Description |
|---|---|---|
| ———————————————— | —————————— | ——————————————————-- |
| ControlInput(only for Ext Decay) | Control | Decay speed of the peak detect signal |
| Input | Audio | Input channel |
Output
| Name | Type | Description |
|---|---|---|
| ———————————————— | —————————— | ——————————————————-- |
| Output | Audio | Output channel |
Configurable Parameters
| GUI Parameter Name | Default Value | Range | Function Description |
|---|---|---|---|
| ——————————————————— | —————————- | ————————————- | —————————————————————- |
| Hold | 0 | 0 to 2000 | Controls the time (ms)the envelope maintains the output level before it starts decreasing as the input level decreases |
| Decay(NA for Ext Decay) | 10 | 1 to 10000 | Controls the rate at which envelope signal decreases in response to the decrease in the input signal |
DSP Parameters
| Parameter Name | Description | ADSP-214xx/SC5xx/215xx | ADAU145x/146x |
|---|---|---|---|
| —————————— | ——————————————————————————————— | ——————————————- | ———————————————- |
| Hold | Controls the time (ms)the envelope maintains the output level | Float | 8.24 format |
| Decay | Controls the rate at which envelope signal decreases in response to the decrease in the input signal | Float | 8.24 format |
DSP Parameter Computation
Hold = (int) FS * Hold/1000
Decay = 1/10^(Decay * 2/(10 * (FS + 0.000001)))
Where FS is the sampling rate
resources/tools-software/sigmastudiov2/modules/dynamicsprocessors/envelopepeak.txt · Last modified: 12 May 2021 09:34 by John Joseph