This version (02 Jan 2023 10:00) was approved by ananthakalyani Sankar.
Table of Contents
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GALA With Filter
Description
GALA With Filter block applies the filtering to the input signal first and then applies the variable GALA gain to the filtered input signal with change in control input value(Speed/Engine Noise)
Targets Supported
| Name | ADSP-214xx | ADSP-215xx/SC5xx | ADAU145x/146x |
|---|---|---|---|
| GALA With Filter | Block | Block | NA |
Pins
Input
| Name | Type | Description |
|---|---|---|
| SpeedInput | Control | Speed or Engine Noise |
| Input0 | Audio | Input Channel0 |
Output
| Name | Type | Description |
|---|---|---|
| Output0 | Audio | Output channel0 |
Configurable Parameters
| GUI Parameter Name | Default Value | Range | Function Description |
|---|---|---|---|
| FilterTypesList | Parametric | GeneralSecondOrderFilterTypes | Allows to choose desired filter type. Tunable parameter |
| InPhase | True | True/False | Inverts the signal by 180 degrees. Tunable parameter |
| EnabledorBypassed | True | True/False | Enables or Disables the algorithm. Tunable parameter |
| Boost | 0 dB | -20 to 20 dB | Boost to the signal. Tunable parameter |
| Frequency | 1000 Hz | 20 to 20000 Hz | Cutoff frequency for the filter. Tunable parameter |
| Q | 1.4 | 0 to 1.5 | Q factor. Tunable parameter |
| Gain | 0dB | -12.6 to 12.6 dB | Gain applied to compute the filter coefficients. Tunable parameter |
| Slope | 0.01 | 0.01 to 1.0 | Slope applied to the control input. Tunable parameter |
| Gain_GALA | 0 | 0 to 15dB | Gain applied to the input signal. Tunable parameter |
| NumChannels | 1 | 15 | Number of input and output channels. Change in this value requires re-compilation |
DSP Parameters
| Parameter Name | Description | ADSP-214xx/SC5xx/215xx |
|---|---|---|
| Slope | Slope applied to the control input | Float |
| GALA_Gain | Gain applied to the input signal | Float |
| RampUpSlew | stepsize for smooth transition of signal from low level to high level | Float |
| RampDownSlew | stepsize for smooth transition of signal from high level to high level | Float |
| B0 | Biquad coefficient B0 | Float |
| B1 | Biquad coefficient B1 | Float |
| B2 | Biquad coefficient B2 | Float |
| A1 | Biquad coefficient A1 | Float |
| A2 | Biquad coefficient A2 | Float |
DSP Parameter Computation
RampUpSlew = 10^(1/(FS * 20)) RampDownSlew = 10^(-3/(FS * 20))
resources/tools-software/sigmastudio/toolbox/adialgorithms/galawithfilter.txt · Last modified: 22 Apr 2022 14:48 by ananthakalyani Sankar