Audio Design Q-TWO Technical Information download pdf (Page 21)

Spectrum analyzer

To help you judge the effect of the combined EQ bands on the incoming audio signal, FabFilter Pro-Q includes a powerful real-time

frequency analyzer.

The spectrum analyzer can be customized via the analyzer settings panel, which pops up automatically when you hover above the

Analyzer button in the bottom bar. It offers the following options:

Using the Pre, Post and SC buttons at the top of the analyzer settings panel, you can choose to enable/disable the pre-EQ,

post-EQ and side-chain spectrum visualization. Note that when

global bypass is enabled, the plug-in won't receive or handle

any audio, so the spectrum analyzer is disabled as well.

The Range setting specifies the vertical range of the spectrum analyzer, which can be 60 dB, 90 dB (the default setting) or

120 dB.

The Resolution setting determines how precise the spectrum analyzer works. Higher resolution settings allow more precision

in the low-frequency area, but because more incoming samples are needed to calculate a single spectrum, the update rate will

be lower which generally results a slower attack time. The Low value corresponds to a resolution of 1024 points, Medium to

2048, High to 4096, and Maximum to 8192 points.

The Speed setting selects the release speed of the spectrum. A fast release shows dynamic changes more clearly, while a

slow release gives you more time to examine the spectrum before it disappears.

The Tilt setting tilts the measured spectrum around 1 kHz with a specified slope, expressed in dB per octave. The default

setting of 4.5 dB/oct results in a natural looking spectrum, resembling best how loudness is perceived by the human ear.

Using the Freeze button at the left bottom of the panel, the spectrum will stop falling and show the maximum over time.

While Freeze is enabled, a blue line at the top of the Analyzer button in the bottom bar indicates this state as well.

Using the Spectrum Grab button, you can enable or disable the Spectrum Grab feature. If enabled, you can leave the mouse

above the spectrum for a few seconds, and Pro-Q 2 will automatically enter Spectrum Grab mode. Existing EQ bands will be

dimmed while the spectrum freezes. You can now simply grab one of the peaks in the white output spectrum line, and drag to

adjust! See

Spectrum Grab.

Clicking the EQ Match button will invoke EQ Match mode. This is a two-step process that uses the side-chain and post-EQ

spectrum analysis and adds EQ bands to match the side-chain characteristics. See

EQ Match.

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Audio Design Q-TWO Technical Information Page 21