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Blue Cat's FreqAnalyst - Real Time Spectrum Analysis Plug-in (VST, Audio Unit, VST3, AAX) (Freeware)
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Add-on: Spectrum Analyzer and Graphic Equalizer, Total Recorder - captures any audio from the Internet, records audio from CD, microphone, line-in, converts any sound formats to WAVE file. Phone recording system.
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Blue Cat's FreqAnalyst Multi - Real Time Multi Tracks Spectrum Analyzer (AU, VST, AAX and VST3 Plug-in)
![Blue Cat's FreqAnalyst Pro - Real Time Spectrum Analyzer and Audio to MIDI AU, RTAS, DX and VST Plug-in Blue Cat's FreqAnalyst Pro - Real Time Spectrum Analyzer and Audio to MIDI AU, RTAS, DX and VST Plug-in](https://www.bluecataudio.com/Vault/Products/Product_FreqAnalystPro/Screenshots/main.png)