IFFTDeinterleaved

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

void IFFTDeinterleaved(XMVECTOR* pReal, const XMVECTOR* pImaginary,
                       const XMVECTOR* pUnityTable,
                       const size_t uChannelCount, const size_t uLog2Length);

Parameters

pReal

[in, out] Real components of the FFT. It must have at least (1 << uLog2Length × uChannelCount) ÷ 4 elements.

pImaginary

[in] Imaginary components of the FFT. It must have at least (1 << uLog2Length × uChannelCount) ÷ 4 elements.

pUnityTable

[in] Unity table the FFT should use. It must have at least (1 << uLog2Length) elements. See FFTInitializeUnityTable for more information.

uChannelCount

[in] Number of channels in the FFT. uChannelCount must be greater than zero.

uLog2Length

[in] Log (base 2) of FFT length in frames. uLog2Length must be within [2, 10].

Remarks

All buffer parameters must be 16-byte aligned. Audio data must be 32-bit float mono.