THE AUDITORY MODELING TOOLBOX

This documentation applies to the most recent AMT version (1.6.0).

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f2erb
Calculates the equivalent rectangular bandwidth of an auditory filter

Usage:

erb = f2erb(f);
erb = f2erb(f, ERB_f, ERB_Q);

Input parameters:

f Center frequency of the auditory filter (in Hz)
ERB_f Optional Greenwood map's break frequency (in Hz).
ERB_Q Optional Glasberg and Moore's high-cf ratio

Description:

erb = f2erb(f); calculates the equivalent rectangular bandwidth (ERB) (in Hz) according to Eq. 4 Glasberg and Moore (1990) or Moore et al. (1997):

\begin{equation*} erb = 24.7 \cdot (1 + 4.37 \cdot \frac{f}{1000}); \end{equation*}

This bandwidth is also usually referred to as 1 Cam, see e.g., Moore et al. (2016).

erb = f2erb(f, ERB_f, ERB_Q); calculates the ERB (in Hz) as used by Lyon (2011) to design the filters in lyon2011_design.

References:

R. F. Lyon. Cascades of two-pole–two-zero asymmetric resonators are good models of peripheral auditory function. The Journal of the Acoustical Society of America, 130(6), 2011. [ http ]

B. C. J. Moore, B. R. Glasberg, and T. Baer. A Model for the Prediction of Thresholds, Loudness, and Partial Loudness. J. Audio Eng. Soc, 45(4):224--240, 1997. [ http ]

B. R. Glasberg and B. Moore. Derivation of auditory filter shapes from notched-noise data. Hearing Research, 47(1-2):103--138, 1990.

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