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Convert from equivalent rectangular bandwidth (ERB) scale to hertz



hz = erb2hz(erb) converts values on the ERB frequency scale to values in hertz.


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Set two bounding frequencies in Hz and then convert them to the ERB scale.

b = hz2erb([20,8000]);

Generate a row vector of 32 values uniformly spaced on the ERB scale.

erbVect = linspace(b(1),b(2),32);

Convert the row vector of values into equivalent frequencies in Hz.

hzVect = erb2hz(erbVect);

Plot the two vectors for comparison. As ERB values increase linearly, Hz values increase exponentially.

title('ERB vs Hz')
grid on

Input Arguments

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Input frequency on the equivalent rectangular band (ERB) scale, specified as a scalar, vector, matrix, or multidimensional array.

Data Types: single | double

Output Arguments

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Output frequency in Hz, returned as a scalar, vector, matrix, or multidimensional array the same size as erb.

Data Types: single | double


The frequency conversion from the ERB scale to Hz uses the following formula:



[1] Glasberg, Brian R., and Brian C. J. Moore. "Derivation of Auditory Filter Shapes from Notched-Noise Data." Hearing Research. Vol. 47, Issues 1–2, 1990, pp. 103–138.

Extended Capabilities

C/C++ Code Generation
Generate C and C++ code using MATLAB® Coder™.

Version History

Introduced in R2019a