Dynamic Parametric Equalization, branded as DynPEQ™, iis an extension of both traditional dynamics processors and parametric equalizers that allows for dynamic control of parametric bands.

Upon this dynamics processor basis, DynPEQ applies two principles.

The first principle is that the dynamic gain element can be replaced with a parametric equalizer band. The frequency and Q parameters are not disturbed, but the gain signal dynamically modifies the boost/cut level.
<<< Please refer to figure

The second principle is that the equalizer parameters that are not dynamic, frequency and Q, specify a frequency-selective filter that can be applied to the sidechain, so the energy estimated is the energy in the band of interest.
<<< Please refer to figure

The result is a signal processor that provides unprecedented control over the audio spectrum in a manner that audio professionals are already familiar with. It can be thought of as a frequency-selective dynamics processor. It can also be thought of as a parametric equalizer with dynamic detailing. Either way, it is an intuitive and useful combination of two essential audio signal processing tools.

For more information

A more detailed description of DynPEQ was presented at the 123rd AES Convention in New York on 5 October 2007. The paper is titled "The Concept, Design, and Implementation of a General Dynamic Parametric Equalizer". It can be ordered through the Audio Engineering Society--search for convention preprint #7171.

Now published in the JAES!

The paper "The Concept, Design, and Implementation of a General Dynamic Parametric Equalizer" has now been revised, corrected, and published in the Journal of the Audio Engineering Society. It is in the January/February 2009 issue, volume 57 number 1/2, pages 16-28. AES members should use their download privileges to get the paper for free!

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