by Stefan Wyeth | Approximate reading time: 2 Minutes
Klevgrand Fosfat

Klevgrand Fosfat  ·  Source: Klevgrand


Klevgrand Fosfat is a unique transient processor from the Swedish software developer. By using a noise generator on high frequencies and a sub-oscillator on the low-end, the plug-in also adds sonic content to the processed audio. Now available for just $23.99, Fosfat is a useful tool for engineers and sound design.


Klevgrand Fosfat gives the transients more depth

What makes Fosfat so different from other transient processors, is the focus on harmonic overtones. A dual analyzer system reads the audio, while the plug-in makes it possible to put back some of the punch and sub-bass that may be reduced through compression.

The system uses an adjustable trigger to control an oscillator that is triggered once a transient is detected. Meanwhile, the oscillator section consists of an envelope, a frequency controller, pitch drop (pitch modulation), a low-cut filter, and a volume control.

In addition, you can select a second frequency range (Trig Freq and Width) in the lower analyzer to trigger the noise generator. Here, you have an envelope, a stereo width control, a high and low cut filter, and a gain control. At the end of the chain is a global volume control for the entire mix.

Pricing and availability:

Klevgrand Fosfat is currently available on the manufacturer’s website at an introductory price of $23.99 rather than $39.99. The promotion is active until July 11, 2022. The plugin runs on macOS 10.10 or higher (compatible with Apple M1) and Windows 7 (SP1) or higher as AU, VST, and AAX in 64-bit. A limited demo version (with random interruptions) and a PDF user manual are also available for download on the website.

Like all Klevgrand plugins, this one is available as an iPadOS app on the Apple App Store for iPad and iPadOS 13.0 or later.

More info:



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Klevgrand Fosfat

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