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cmProc5.c : Completed and tested cmPhatChExec().

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kevin 2015-07-24 18:18:22 -04:00
parent 1f74830cb8
commit 0c505ecc2c
1 changed files with 6 additions and 5 deletions
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11
cmProc5.c
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@ -405,7 +405,7 @@ cmRC_t cmPhatInit( cmPhat_t* p, unsigned chN, unsigned hN, float alpha, unsig
if((cmFftInitSR(&p->fft, NULL, p->fhN, kToPolarFftFl)) != cmOkRC ) if((cmFftInitSR(&p->fft, NULL, p->fhN, kToPolarFftFl)) != cmOkRC )
return rc; return rc;
if((cmFftInitRS(&p->ifft, NULL, p->fft->binCnt )) != cmOkRC ) if((cmIFftInitRS(&p->ifft, p->fft.binCnt )) != cmOkRC )
return rc; return rc;
p->alpha = alpha; p->alpha = alpha;
@ -603,13 +603,14 @@ void cmPhatChExec(
// //
// t0V[] /= xV[] // t0V[] /= xV[]
cmVOCR_DivVFV( p->t0V, p->xV, p->binN ); cmVOCR_DivVFV( p->t0V, p->xV, p->binN );
// Take the IFFT of the weighted CPS to recover the cross correlation. // Take the IFFT of the weighted CPS to recover the cross correlation.
// xV[] = IFFT(t0V[]) // xV[] = IFFT(t0V[])
cmIFftExecRS( p->ifft, ); cmIFftExecRS( &p->ifft, p->t0V );
// Normalize the result by the length of the transform.
cmVOS_DivVVS( p->xV, p->fhN, p->ifft.outV, p->fhN );
//// ***** atFftRealInverse( p->fftH, p->t0V, p->xV, p->fhN );
// Shift the correlation spike to mark the end of the id // Shift the correlation spike to mark the end of the id
cmVOS_Rotate( p->xV, p->fhN, -((int)p->hN) ); cmVOS_Rotate( p->xV, p->fhN, -((int)p->hN) );