Mercurial > hg > mauch-mirex-2010
annotate _beattracker/ftacf.m @ 9:4ea6619cb3f5 tip
removed log files
| author | matthiasm |
|---|---|
| date | Fri, 11 Apr 2014 15:55:11 +0100 |
| parents | b5b38998ef3b |
| children |
| rev | line source |
|---|---|
| matthiasm@8 | 1 function acf = ftacf(x) |
| matthiasm@8 | 2 |
| matthiasm@8 | 3 |
| matthiasm@8 | 4 x = x(:); |
| matthiasm@8 | 5 |
| matthiasm@8 | 6 [M,N] = size(x); |
| matthiasm@8 | 7 |
| matthiasm@8 | 8 X = fft(x,2^nextpow2(2*M-1)); |
| matthiasm@8 | 9 acf = ifft(X.*conj(X)); |
| matthiasm@8 | 10 |
| matthiasm@8 | 11 acf = acf(1:M)./[M:-1:1]'; |