Frequencies Analyzer Quick Doc
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Language : English Language : French Direct-X VST Plug-in VS3 Merging Plug-in
Frequencies Analyzer
Direct-X VST plug-ins

License : 9
- Frequencies Analyzer.

The very first steps

STEP -1- : Display the Meter Window.

STEP -2- : Choose the number of bands to analyze.

STEP -3- : In the contextual menu, select the view type.

STEP -4- : Adjust the analysis range (down to 1 octave).

STEP -5- : Define the db scale by setting Min and Max levels.

The VB-Audio Spectrum Analyzer

Basics :

The "Display" button opens the analysis window. The "Mute" button stops the measuring process and freezes the display window.

Below it, you'll find the input selector. Here you can decide whether you want to analyze two channels at the same time - L and R channels - for a stereo analysis (selected by default) also allowing you to measure phase correlation for each band. You can also choose to analyze a single channel alone (Left or Right), or the sum of both channels (L+R).

Synchronization :

This delay setting, up to 2 seconds long (set to 0 ms per default) will allow you to synchronize the display with what you're hearing, if required (the aim is to delay the display so that it is synchronized with the sound).

Displayed Level Type :

Frequency Analyzer constantly measures maximum levels (PEAK) and RMS levels (continuous) which can be displayed at any time by clicking on this selector.
The measuring of levels is done directly using these mathematical formula (VB-Audio's VU-meter does not use approximation methods).
Note that the maximum level (PEAK) is always represented by a small bar, regardless of the type of level currently selected.

Adjustable Scale Length :

The Min and Max level of the scale can be set at your convenience to let you see the level with the best possible precision (from - 90 db to +40db on the decibel scale).

Release Time :

Here, you can set the release time of the bar-graphs displaying levels by tweaking the release speed, here expressed in db per second.
The release time is independently configurable for Max levels (PEAK), RMS levels (R) and AVERAGE levels (A).

Frequency range :

These two buttons enable the user to define the analysis range by setting the minimum maximum frequencies to be analyzed. The difference between min and max can cover the whole bandwith as well as one octave only.

Number of Bands :

With this knob, the user will be able to set the number of bands to be analyzed. From 15 to 512 bands, this setting is directly dependent on CPU power.

Contextual Menu :

This contextual pop-up menu will appear with a right click on the VIEW window.

From this menu, the user can change the display rate (frames per second) and other options such as level type (PEAK, R/A).

You can also decide to display either Max detection for each band or Average levels, and reset these two level-type displays.

The display mode (vertical or horizontal) and the scale type also have to be defined here, just by selecting the wanted item from the menu.

What you can see is defined by what you have selected for view 1 and view 2 (Level Analyze, Phase corellation, time analyze...).

Per default, the window is set to ALWAYS VISIBLE mode. Although this can be switched off, the setting won't be saved like other parameters as it is only an additional feature.

In a big project, several instances of the Frequency analyzer may be used at the same time. To save the user from any confusion every View window can be named independently (e.g. Input 1, Output Master, etc).

Finally, when choosing DEFAULT OPTION, the user can access a general settings window allowing him to set the default colours and values. These settings will be saved with the project when closing it.

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