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| What is Dynamic Parametric Equalization?
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. |
| The basis of the technology is the traditional dynamics processor. A sidechain signal feeds an energy estimator. A dynamics curve maps the energy estimate to an output gain value. This dynamically variable gain is finally applied to the input audio signal to yield the audio output. <<< Please refer to figure |
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Upon this dynamics processor basis, DynPEQ applies two principles. |
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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. |
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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. |
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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. Back to Top |
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