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scripts default iconBass / Treble Shelving Filter (Scripts) Publisher's description

Derive coefficients for a shelving filter with a given amplitude and cutoff frequency

Derive coefficients for a shelving filter with a given amplitude and cutoff frequency. All coefficients are calculated as described in Udo
Zolzer's DAFX book (p. 50 -55).

Usage: [B,A] = shelving(G, Fc, Fs, Q, type);

G is the logrithmic gain (in dB)
FC is the center frequency
Fs is the sampling rate
Q adjusts the slope be replacing the sqrt(2) term
type is a character string defining filter type
Choices are: 'Base_Shelf' or 'Treble_Shelf'

Typically this filter is used for multi-band equalization of audio. For example a 3-band equalizer (Bass/Mid/Treble) might use:

Bass = Bass shelving Filter
Mid = Peaking Filter
Treble = Treble shelving Filter

System Requirements:

MATLAB 7.3 (R2006b)
Program Release Status: New Release
Program Install Support: Install and Uninstall

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