You can configure multiple equalizers if desired using the Add Filter button. It implements a spectrum analyzer by displaying the audio level in each of SuperEQ's 18 frequency bands, using Histogram("audiolevels"). Each DSP Engine configuration comes with a Parametric Equalizer by default. This is a rather extreme example of what can be done with SuperEQ. To give a very rough indication of the frequency response of the above example, here is a screenshot of an Audacity spectrum analysis of processed white noise (which should be approximately flat without equalization, allowing for low-frequency variability) REW is free software for room acoustic measurement, loudspeaker measurement and audio device measurement.
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