Bertom Audio Air Shelf

Air Shelf is a free dynamic EQ plugin from Bertom Audio. It is designed specifically to enhance and control high frequencies above 10kHz. It features two simple controls: Boost, which adds a high-shelf EQ centered at 20kHz to enhance the “air” and sparkle in a mix, and Tame, which uses a dynamic EQ and transient shaper to manage high-frequency spikes, preventing harshness. The Boost knob works gradually, creating smooth, transparent boosts without adding unwanted artifacts.

The Tame knob automatically detects and reduces harsh transients in the high-end without depending on the input signal level. I love Air Shelf’s simplicity. I often use it as the last insert effect on sounds that lack clarity in the high frequencies. ” The plugin is available in VST3 and AU formats for Windows, macOS, and Linux, supporting both 32-bit and 64-bit systems. It’s offered on a “pay what you want” basis, meaning users can download it for free or choose to donate to the developer.

Thanks to BPB reader Chvad SB for recommending Air Shelf. If you’re still wondering why a dynamic equalizer is sometimes better than a regular parametric EQ, here’s my short explanation. Dynamic EQ is useful for fixing tonal issues in complex audio sources like a drum mix or a stereo master. It allows you to apply EQ changes only when specific frequencies become problematic rather than making static adjustments throughout the entire track.

My favorite way to describe it is to imagine using a compressor on a specific frequency band. For example – a dynamic EQ lets you compress only the snap portion of a snare drum in a full drum mix. Yes, the concept is similar to multi-band compression, but I find the layout of a dynamic EQ more intuitive. I will mention a few more differences below. I think dynamic EQ is especially effective for managing frequencies that fluctuate in intensity, such as harsh vocal peaks or resonant cymbals.

By targeting these dynamic issues, you can control unwanted frequency buildup without over-processing the sound. Using a dynamic EQ offers more precise control over specific frequencies than a multiband compressor. While multiband compressors affect entire frequency ranges divided by crossovers, dynamic EQs target individual frequencies with greater accuracy, allowing you to adjust them only when needed. This results in a more transparent and natural sound, as it avoids the phase issues and coloration that can sometimes occur with multiband compression.

For more freeware plugins and instruments, return to our Free VST Plugins page. Last Updated on October 21, 2024 by Tomislav Zlatic.