Convert autocorrelation sequence to reflection coefficients
[k,r0] = ac2rc(r)
[k,r0] = ac2rc(r) finds the reflection coefficients, k, corresponding to the autocorrelation sequence r. r0 contains the zero-lag autocorrelation. If r is a matrix where the columns are separate channels of autocorrelation sequences, r0 contains the zero-lag autocorrelation coefficient for each channel. These reflection coefficients can be used to specify the lattice prediction filter that produces a sequence with approximately the same autocorrelation sequence as the given sequence r.