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The General (2nd-Order) block gives access to a wide variety of 2nd-order (biquad)filter algorithms along with equalization. Blend factor and slew rate modifications are common for all the stages.
The available filter types are:
To open the filter control window, click on the icon button. Select the desired filter type from the drop-down combo-box list. The filter controls and the icon button image will change to reflect the selected filter type.
General Equalizer module with Single Ext blend factor(General Eq Ext Blend).
Name | ADSP-214xx | ADSP-215xx/SC5xx | ADAU145x/146x |
---|---|---|---|
————————————-- | ——————-- | ——————————-- | —————————- |
GeneralEqSingleBlend | B/S | B/S | S |
GeneralEqSingleBlendExt | B/S | B/S | S |
Name | Type | Description |
---|---|---|
——————————————— | —————————— | ———————————————— |
Input0 | Audio | Input Channel 0 |
Blend0 | Control | External Blend pin for SingleEqExtBlend variant |
Name | Type | Description |
---|---|---|
——————————————— | —————————— | ———————————————— |
Output0 | Audio | Output channel 0 |
GUI Parameter Name | Default Value | Range | Function Description |
---|---|---|---|
———————————————————- | ————————— | ——————————————— | ———————————————————- |
StageX_FilterY_Boost | 0 dB | -10 to +10 dB | Set the boost value for a particular filter curve |
StageX_FilterY_Frequency | 1000 | 0 to 96000Hz | Cut-off frequency |
StageX_FilterY_Gain | 0 dB | -15 to +15 dB | Filter Gain |
StageX_FilterY_Q | 1.41 | 0.1 to 16 | Q factor of the filter |
StageX_FilterY_Slope | 1 | 0 to 2 | Slope controls filter steepness and therefore the transition between the boost/cut and the flat response. |
StageX_FilterY_FilterType | Parametric filter | Available filter Types | Controls the type of the filter |
StageX_FilterY_EnabledOrBypassed | True | True/False | Enabled/Disabled the algorithm |
StageX_FilterY_Phase | False | True/False | Controls the phase of coefficients in 0 degree or 180 degree phase |
StageX_Slew | 0 | 0 to 1 | Slew value for individual filter stages |
StageX_Blend | 0 | 0 to 1 | Blend value for individual filter stage |
NumStages | 1 | 1 to 20 | Number of stages of filter. Change in this value requires re-compilation |
NumChannels | 1 | 1 to 20 | Number of input and output channels. Change in this value requires re-compilation |
Here, * X - Indicates Stage Number
* Y - Indicates Filter A/Filter B
Parameter Name | Description | ADSP-214xx/SC5xx/215xx | ADAU145x/146x |
---|---|---|---|
———————————— | ———————————————————- | —————————————- | —————————- |
StageX_FilterY_B0 | B0 Filter Coefficient | Float | FixPoint8d24 |
StageX_FilterY_B1 | B1 Filter Coefficient | Float | FixPoint8d24 |
StageX_FilterY_B2 | B2 Filter Coefficient | Float | FixPoint8d24 |
StageX_FilterY_A1 | A1 Filter Coefficient | Float | FixPoint8d24 |
StageX_FilterY_A2 | A2 Filter Coefficient | Float | FixPoint8d24 |
StageX_Slew_Lambda | Exponential decay value of filter stage X | Float | FixPoint8d24 |
Here,