Bark24 | Dyn v1.1 is the latest release from FSK Audio that delivers intelligent dynamic control of 24 frequency bands derived from the Bark scale. What follows is an overview of the features and functionality of this device, and the underlying principle that informs its design.
WHAT IS THE BARK SCALE?
The Bark scale was proposed by Eberhard Zwicker in 1961 and named after Heinrich Barkhausen, a German physicist who proposed the first subjective measurements of loudness. (source). The scale is based on perceived critical bands, a concept originally introduced by Harvey Fletcher in 1933 that relates to the human hearing mechanism (source) and the audio filtering created by the cochlea. 24 critical bands are identified in the Bark scale, and it should be noted that the scale is not linear or fixed as in 1/2 or 1/3 octave graphic EQs, but rather, pertains to biological auditory filters (Ballou 49).
While 1/3 octave filters approach the critical bands perceived by the human ear, there are differences, particularly in the low end (Everest 52). Critical frequency bands are used in equalization, multi-band dynamic control, and audio codecs that rely on the concept of psychoacoustic masking to reduce file size.
THE BARK24 | DYN GUI
The interface and 3D effects in this device are stunning and responsive, making it a pleasure to use. Creative interface design that visually represents the auditory result enhances the user’s experience, inspiring experimentation along the way.
Each of the 24 bands is clearly visible with adjustable vertical bars, independent metering, solo, mute, and power buttons. The device responds independently to the energy present in each frequency band and has four dynamic modes:
- Limit – restrains excessive energy above the threshold
- Gate – reduces gain below the threshold
- Expand – increases dynamic range on signals above the threshold
- UpComp – raises lower-level energy
Global dynamic settings include Attack (1-50ms) and Release (1-500ms) times. There are three band contour settings that affect the filter slopes, from very steep to more gradual, similar to typical graphic EQs.
Below each band are the corresponding gain settings (-48 to +48 dB)
Threshold and Gain control sliders can affect global changes while retaining the shape or contour of the settings across the spectrum.
NEW FEATURES
This new version of Bark24 includes some very useful editing and auto settings.
Group Controls
The little triangles next to the band parameters offer a convenient grouping control that allows the user to reposition solo, mute and power options by swiping left or right.
Multi-Selection
Adjust bands as a group.
Auto Threshold
This control will automatically set the thresholds based on the incoming peaks.
Auto Gain
This control automatically sets the gains based on the direction and amount of dynamics processing. (available in Limit, Expand, and UpComp modes)
Auto Output
This control will automatically set the output gain to minimize level change.
NOTE: Use Option/Alt-click to toggle Auto Threshold, Auto Gain, and Auto Output at the same time.
Output Limiter
A brickwall limiter will engage when the output signal exceeds +12dB to protect your ears and equipment.
PRODUCT VIDEOS
CONCLUSION
This device is an exceptional 24-band dynamics processor founded on established psychoacoustic principles. It offers creative control not possible with other multi-band approaches and can function as a multi-band transient enhancer, expander, limiter, gate, and compression processor. It has a straightforward design that is responsive and visually inspiring. Whether you are after traditional dynamic control or weird processing effects, Bark24 | Dyn will unleash your creative spirit! (almost made it through this review without the obvious canine reference—almost)
REFERENCES
- Ballou, Glen, and Douglas R. Jones. Handbook for Sound Engineers. Routledge, Taylor & Francis Group, 2026.
- Everest, F. Alton, and Ken C. Pohlmann. Master Handbook of Acoustics. McGraw-Hill Education, 2022.
EXTRAS
Want to win a free license to Kontakt 8? Be one of the first 1000 people to FOLLOW WAVEINFORMER ON INSTAGRAM to be automatically entered to win one of three full-version Kontakt 8 licenses! Read more.
Assess your knowledge of essential audio concepts using our growing catalog of online Quizzes.
Explore more content available to Subscribers, Academic, and Pro Members on the Member Resources page.
Not a Member yet? Check the Member Benefits page for details. There are FREE, paid, and educational options
