hz2cent, cent2hz
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Convert the elements of x from Hertz to Cent and vice versa.
- Usage
hz2cent(x {, ref {, ofs}})log2lin(x {, ref {, ofs}})- x
- a scalar, vector or matrix
- ref
- the reference frequency in Hz; must be a positive number (default=440)
- fac
- a shift value in Cent; must be a number (default=0)
- Result
- The result r has the same type as x and contains the converted elements of x. The following conversion algorithms are used:
- hz2cent: ri,j = 1200 * log2(xi,j / ref) + ofs
fac * log10(xi,j / ref)
- cent2hz: ri,j = ref * 2 ^ ((xi,j - ofs) / 1200)
- See also
- hz2mel, mel2hz, hz2erb, erb2hz, hz2bark, bark2hz, hth, lin2log, log2lin
Example:
#hz := eval vv(100, 200, 440, 880) #cent1 := eval hz2cent($#hz) #cent2 := eval 1200 * ld($#hz / 440) // this is a the same as #cent1
