hz2cent, cent2hz

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: r_i,j = 1200 * log₂(x_i,j / ref) + ofs

fac * log₁₀(x_i,j / ref)

• cent2hz: r_i,j = ref * 2 ^ ((x_i,j - ofs) / fac)

See also

hz2mel, mel2hz, hz2erb, erb2hz, hz2bark, bark2hz, hth, lin2log, log2lin

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