Programmer Guide/Command Reference/EVAL/hz2mel: Difference between revisions

Latest revision as of 11:55, 21 April 2011

Convert all elements of x from Hertz to Mel and vice versa.

Usage

hz2mel(x)

mel2hz(x)

Result

The result r has the same type as x and contains the converted elements of x.

hz2mel: r_i,j = 2595 * log₁₀(1 + x_i,j / 700); x_i,j is the frequency in Hz and must be greater than 0
mel2hz: r_i,j = 700 * (10 ^ (x_i,j / 2595) - 1); x_i,j is the frequency in Mel and must be greater than 0

See also: hz2bark, bark2hz, hz2erb, erb2hz, hz2cent, cent2hz, hth, lin2log, log2lin

@@ Line 1: / Line 1: @@
-{{DISPLAYTITLE:{{SUBPAGENAME}}}}
+{{DISPLAYTITLE:hz2mel, mel2hz}}
-=====hz2mel=====
+Convert all elements of ''x'' from Hertz to Mel and vice versa.
+;Usage: <code>hz2mel(<var>x</var>)</code>
+:<code>mel2hz(<var>x</var>)</code>
+:;<var>x</var>: a scalar, vector or matrix
+;Result: The result ''r'' has the same type as ''x'' and contains the converted elements of ''x''.
+:;'''hz2mel''': ''r''<sub>i,j</sub> = 2595 * log<sub>10</sub>(1 + ''x''<sub>i,j</sub> / 700)
+::''x''<sub>i,j</sub> is the frequency in Hz and must be greater than 0
+:;'''mel2hz''': ''r''<sub>i,j</sub> = 700 * (10 ^ (''x''<sub>i,j</sub> / 2595) - 1)
+::''x''<sub>i,j</sub> is the frequency in Mel and must be greater than 0
-Hertz to Mel conversion.
+;See also: [[../hz2bark|hz2bark, bark2hz]], [[../hz2erb|hz2erb, erb2hz]], [[../hz2cent|hz2cent, cent2hz]], [[../hth|hth]], [[../log2lin|lin2log, log2lin]]
-=====Usage:=====
+[[../#Functions|<function list>]]
-<code>hz2mel(<var>x</var>)</code>