About Blue Cat's FreqAnalyst Pro
Real Time Spectrum Analyzer and Audio to MIDI AU and VST Plug-in
A powerful spectral analysis tool and automation generator with 3D viewer. - Blue Cat's FreqAnalyst Pro is a real time spectrum analyzer with advanced functionalities. It uses the same smooth algorithms as its little brother (Blue Cat's FreqAnalyst free plug-in): it has been designed to provide extreme smoothness and high resolution for both time and frequency. The frequency analysis can be fine tuned in details: manage its precision and rate, apply an offset or slope to the measured spectrum. Two thresholding systems are available, and the time response can be changed thanks to the attack and release parameters. Three modes are offered for each channel: instant, peak or average response can be displayed on the same graph. Zooming capabilities and coordinates display let you exactly measure the characteristics of the spectrum. The four memory slots let you store any curve in memory: it helps you make comparisons between several tracks or effects setup very easily. A spectrogram view has been added so that you can monitor the evolution of the spectrum over time either in 2D or 3D (3D waterfall mode). All channels are of course available in this view, with exact coordinates display and zooming capabilities. Like many of our other professional analysis tools, this plug-in also provides output parameters that you can use to control other effects in real time: the generated automation envelopes or MIDI CC messages include the minimum and maximum frequencies and the energy center of the spectrum, expressed in Hertz or as MIDI note value. With the transformation parameters (offset, amount and reverse), you can customize the generation of these parameters and monitor the modifications on the value graphs. Check the DP Meter Pro Tutorials to see how to use this capability within your favorite host. Thanks to this unique functionality, you can now control any effect with the pitch of the audio signal.
Previous Versions
Here you can find the changelog of Blue Cat's FreqAnalyst Pro since it was posted on our website on 2015-04-25 03:00:00.
The latest version is 2.14 and it was updated on 2026-10-18 16:06:28. See below the changes in each version.
Blue Cat's FreqAnalyst Pro version 2.14
Updated At: 2025-09-08
Changes: Fixed MIDI settings display issues on Mac.
Blue Cat's FreqAnalyst Pro version 2.13
Updated At: 2025-08-12
Changes: Fixed Audio Unit registration issues in Logic and GarageBand after using the demo version.
Improved whitespace stripping to streamline username/key registration.
Find currently selected preset easily in the menu (folders containing the preset now display a check mark).
Blue Cat's FreqAnalyst Pro version 2.12
Updated At: 2024-09-09
Changes: Windows: Multi monitor High DPI scaling support for high resolution displays (4K monitors, hi-res laptops...) for Windows 10 version 1607 (Anniversary Edition) and newer.
Mac: Improved Retina display support, with crispier graphics at all resolutions and zoom levels.
Mac.
Blue Cat's FreqAnalyst Pro version 2.11
Updated At: 2022-12-12
Changes: Added Apple Silicon support for AAX Plug-in Format.
Fixed VST3 version not always loading properly in Ableton Live 11.
Improved VST parameter value display in some host applications.
Added an option in global
Blue Cat's FreqAnalyst Pro version 1.95
Updated At: 2014-03-20
Changes: Fixed 64-bit VST MIDI Events not sent for the first output parameter in the list.
Windows VST installer now detects the VST plug-ins path and remembers previous install location for updates.
Fixed Audio Unit validation issue on OSX Mavericks/Logic Pro X.
Blue Cat's FreqAnalyst Pro version 1.5
Updated At: 2008-12-10
Changes: Now available for Mac in VST format.
Added Mid/Side analysis capability.
Minor user interface changes.
Disclaimer
External Download
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