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Stereo Tool Preset May 2026
In professional broadcasting and high-fidelity audio engineering, a Stereo Tool preset serves as a foundational configuration file for the Stereo Tool software. Developed by Hans van Zutphen, Stereo Tool is a sophisticated software-based audio processor used by over 3,000 FM stations, nationwide networks, and thousands of web radio stations to achieve a consistent, powerful, and legally compliant sound. The Role of Presets in Audio Processing
Presets are essential because they manage the immense complexity of the software, which contains hundreds of interconnected parameters. For many users, a preset provides a "plug-and-play" solution to complex audio engineering challenges:
Consistency: They ensure that varying audio sources—from high-quality studio recordings to field reports or guest mics—all share a unified "sonic signature" or brand image. stereo tool preset
Legal Compliance: Presets often include pre-configured limiters (such as the BS-412 limiter) mandatory for FM broadcasting in various countries to prevent signal overmodulation.
Market-Specific Sound: Broadcasters often choose presets based on "the sound of the market" rather than just the musical genre. For example, the popular "Dutch Chocolate Moose" preset is tailored specifically for the competitive, high-energy Dutch FM market. Core Components of a Stereo Tool Preset Standalone (Winamp DSP/ VST): Used for streaming, music
A comprehensive preset typically activates and tunes several high-end processing modules within the software: Stereo Tool FAQ - Thimeo Audio Technology
The Three Main "Flavors" of Presets
Before downloading a preset, you must understand the three major versions of Stereo Tool, as presets are not interchangeable between them: MPX (Multiplex) limiting
- Standalone (Winamp DSP/ VST): Used for streaming, music players, or DAWs.
- FM (Stereo Tool FM): Includes specific pre-emphasis (50/75 µs), MPX (Multiplex) limiting, and RDS (Radio Data System) management for over-the-air broadcasting.
- Declipper (Restoration): Focuses on repairing over-compressed or distorted MP3s and streaming audio. Presets here are more about reconstruction than loudness.
2. The Multi-band Compressor
This is the heart of the "radio sound." Stereo Tool typically offers 2-band, 4-band, or 5-band compression. A preset designed for voice will compress only the mid-range. A preset for EDM will glue the low-end bass to the high-hats. The preset dictates the "crossover points"—the frequencies where one band ends and another begins.
Typical Parameters in Presets
- Width (%) or stereo spread (0–200% or similar)
- Mid/Side EQ bands (frequency, gain, Q)
- Mid/Side compression thresholds/ratios/attack/release
- Delay amount for Haas effect (ms)
- Phase invert toggles (L/R)
- Low-frequency mono crossover (Hz) — keep bass centered
- Stereo correlation meter target/alerts
- Output gain or make-up gain
- Wet/dry mix for parallel processing