IFFTDeinterleaved

This function applies a 2^N-sample inverse Fast Fourier Transform (FFT). Audio is interleaved first if it is multichannel.

Syntax

void DSP::IFFTDeinterleaved(  
         XMVECTOR* __restrict pReal,  
         XMVECTOR* __restrict pImaginary,  
         const XMVECTOR* __restrict pUnityTable,  
         const size_t uChannelCount,  
         const size_t uLog2Length  
)  

Parameters

pReal   _Inout_updates_(((1 << uLog2Length) * uChannelCount) / 4)
Type: XMVECTOR* __restrict Real components of the FFT. It must have at least (1 << uLog2Length × uChannelCount) ÷ 4 elements. pImaginary   _Inout_updates_(((1 << uLog2Length) * uChannelCount) / 4)
Type: XMVECTOR* __restrict Imaginary components of the FFT. It must have at least (1 << uLog2Length × uChannelCount) ÷ 4 elements. pUnityTable   _In_reads_(1 << uLog2Length)
Type: XMVECTOR* __restrict Unity table that is used by the FFT. It must have at least (1 << uLog2Length) elements. See FFTInitializeUnityTable for more information. uChannelCount   _In_
Type: size_t Number of channels in the FFT. uChannelCount must be greater than zero. uLog2Length   _In_
Type: size_t Base-2 log of the FFT length, in frames. uLog2Length must be within [2, 10].

Return value

Type: void None.

Remarks

Use the FFIntializeUnityTable function to initialize the pUnityTable parameter. The memory for pReal, pImaginary, and pUnityTable parameters must not overlap. pReal will be updated with the result of the FFT when the function returns.

Requirements

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

(all) API references

Error codes

Audio API reference

Chat API reference

Developer kit only API reference

Graphics API reference

Input API reference

Lighting API reference

Networking API reference

XBOX PC remote iteration API reference

System API reference

Tools API reference

Windows device portal REST API reference

XBOX services API reference

MicrosoftGame.config reference

IFFTDeinterleaved

IFFTDeinterleaved

Syntax

Parameters

Return value

Remarks

Requirements

See also

​IFFTDeinterleaved

​Syntax

​Parameters

​Return value

​Remarks

​Requirements

​See also

IFFTDeinterleaved

Syntax

Parameters

Return value

Remarks

Requirements

See also