Intro to Match EQ in Final Cut Pro
Match EQ allows you to analyze and store the average frequency spectrum of an audio file as a template. You can apply this template to another audio signal so that it matches the spectrum of the original file. This is also known as a fingerprint EQ, where one sonic fingerprint is applied to another signal.
Match EQ lets you acoustically match the tonal quality or overall sound of different songs you plan to include on an album, for example, or to impart the color of any source recording to your own projects.
Match EQ is a learning equalizer that analyzes the frequency spectrum of an audio signal such as an audio file, a channel strip input signal, or a template. Match EQ analyzes the average frequency spectrum of the source file (the template) and of the current material (this can be the entire project or individual channel strips within it). These two spectra are then matched, creating a filter curve. This filter curve adapts the frequency response of the current material to match that of the template. Before applying the filter curve, you can modify it by boosting or cutting any number of frequencies or by inverting the curve.
The Analyzer allows you to visually compare the frequency spectrum of the source file and the resulting curve, making it easier to make manual corrections at specific points within the spectrum.
Note: Although Match EQ acoustically matches the frequency curve of two audio signals, it does not match any dynamic differences between the two signals.