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Second-order parametric equalizer filter

**Library:**Audio System Toolbox / Filters

The Parametric EQ Filter block filters each channel of the input signal over time using a specified center frequency, bandwidth, and peak (dip) gain. This block offers tunable filter design parameters, which enable you to tune the filter characteristics while the simulation is running. The filter uses a coupled allpass structure to optimize joint computation of the peak and notch response.

This block supports variable-size input, enabling you to change
the channel length during simulation. To enable variable-size input,
clear the **Inherit sample rate from input** parameter.
The number of channels must remain constant.

[1] Orfanidis, Sophocles J. *Introduction to Signal
Processing*. Upper Saddle River, NJ: Prentice-Hall, 1996.

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