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Gets the raw target coefficients of an equalizer filter.

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Syntax

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Parameters

context   _In_
Type: SHAPE_EQCOMP_CONTEXT* Pointer to a SHAPE_EQCOMP_CONTEXT structure. filterIndex   
Type: SHAPE_EQCOMP_FILTER_INDEX A member of the SHAPE_EQCOMP_FILTER_INDEX enumeration. a1   _Out_
Type: INT32* Raw target coefficient a1 of the specified equalizer filter. a2   _Out_
Type: INT32* Raw target coefficient a2 of the specified equalizer filter. b0   _Out_
Type: INT32* Raw target coefficient b0 of the specified equalizer filter. b1   _Out_
Type: INT32* Raw target coefficient b1 of the specified equalizer filter. b2   _Out_
Type: INT32* Raw target coefficient b2 of the specified equalizer filter.

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Return value

Type: HRESULT HRESULT success or error code.

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Remarks

The coefficients of each biquad filter (b0, b1, b2, a1, and a2) are stored as 24-bit integers. This allows for a coefficient range of up to ±7.998, which is suitable for providing coefficients for the types of filters allowed: a frequency range of 20 Hz to 18 kHz, and a gain range of -18 dB to 18 dB. For more information, see Equalization and compression in Overview of SHAPE.

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Requirements

Header: shapeeqcompcontext.h Supported platforms: XBOX One family consoles and XBOX Series consoles

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See also

ShapeEqCompcContext
Last modified on October 29, 2026