Blue Cat's FreqAnalyst vs Klangfreund LUFS Meter
Blue Cat's FreqAnalyst
bluecataudio.comKlangfreund LUFS Meter
klangfreund.comSide by side
| Figure | Blue Cat's FreqAnalyst | Klangfreund LUFS Meter |
|---|---|---|
| Price from | Free | — |
| Free plan | Yes | — |
| Free trial | — | Yes |
| Open source | — | — |
| Windows | Yes | Yes |
| macOS | Yes | Yes |
| Linux | — | Yes |
| Plans published | 1 | 2 |
| Spec score · Audio Analysis Software | 8.0 (#14) | 8.2 (#8) |
| Headquarters | Paris, France | Oberschan, Switzerland |
| Purpose | FreqAnalyst is a free plug-in for monitoring an audio signal’s spectral content in real time. | LUFS Meter is an audio plug-in for measuring and adjusting perceived loudness. |
| Security | The maker says its Mac installers and plug-ins have been notarized to avoid security warnings on macOS Catalina and newer. | The manual says the store uses an encrypted connection and that Stripe and Braintree handle sensitive card data under PCI DSS level 1 compliance. |
| Support | Blue Cat Audio provides a knowledge base, help desk, forum, and tutorials for product support. | The maker directs support inquiries and issue reports to its contact form and provides an online manual and interactive in-product help. |
Plans
Klangfreund LUFS Meter
- Discounted LUFS Meter$19, paid once
- LUFS Meter$39, paid once
In their own words
Blue Cat's FreqAnalyst
Blue Cat's FreqAnalyst is a free plug-in for monitoring the spectral content of mono or stereo audio in real time. It displays spectrum, instant curve and peak curve views, with continuous changes rendered using smooth interpolation. Users can zoom the display, choose among sizes and set absolute or relative thresholds. The interface supports skins, transparency and zoom customization, while MIDI control, automation and MIDI Learn provide ways to control the plug-in. A preset manager is included, and users can copy and paste a plug-in state between instances. FreqAnalyst is not a standalone app: it requires a compatible audio host and is available in VST, VST3, AAX and Audio Unit formats for macOS and Windows. The stated operating systems are macOS 10.9 or newer and Windows Vista, 7, 8, 10 or 11. It supports up to two channels. The maker says processing stops when the input is silent, so it uses no CPU while idle.
Klangfreund LUFS Meter
Klangfreund LUFS Meter has no write-up on Specifiction yet; its figures are above.