* Function: CVKernel2 * * Description: kernel of covariance matrix calculation for p02 * * Inputs: buffer of low-freq samples, starting at time index = 0, * freq index = patch subband * * Outputs: 64-bit accumulators for p02re, p02im stored in accBuf * * Return: none * * Notes: this is carefully written to be efficient on ARM * use the
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