Tonal Balance Control 3
Product design for the next generation of an industry-standard tonal balancing tool used by mixing and mastering engineers.
Target Audience
Mixing and mastering engineers
Environment
DAW-based workflows
Role
Lead Designer
Scope
End-to-end product design
What is TBC?
Reference-based tonal balance analysis
Tonal Balance Control 3 displays a target tonal balance curve and measures how a user’s audio compares against it. As users play their mix, the meter shows whether each frequency range falls within an acceptable range, allowing engineers to quickly identify tonal imbalances.
The challenge
Relevance in an infinite landscape
As the music landscape continues to expand, fixed reference targets struggled to reflect the diversity of modern production. Users often found them too generic to feel relevant to their mixes.
Better together but worse alone
The product’s value was closely tied to the broader iZotope ecosystem. While effective in combination with other tools, this created a dependency that reduced its usefulness as a standalone solution.
Behind iZotope’s modern analysis capabilities
Users wanted access to deeper analysis that existed elsewhere in the iZotope product ecosystem but was not available within TBC up until this point.
Risks and considerations
Innovating while preserving simplicity
User research consistently highlighted the simplicity of Tonal Balance Control 2 as a core strength. Expanding the system introduced the risk of added complexity and disrupting familiar workflows. Additional targets, controls, and analysis could easily pull focus away from the core metering experience. The challenge was to increase flexibility and depth while preserving the simplicity, speed, and clarity users relied on.
Infinitely personalized references
Framing
Rigid stock targets could not keep pace with the diversity of modern production. As genres continue to expand and blend, a limited set of predefined references made it difficult for users to find targets that felt relevant to their mixes.
Design Approach
Rather than attempting to classify an ever-expanding set of genres, we expanded the factory target library and enabled users to create their own by capturing reference audio and blending both custom and predefined targets.
Expanded target library
The default target set was expanded with subgenre-specific references, increasing coverage and improving baseline relevance.
Capture from system audio
Users can generate targets directly from their system audio to generate rich targets from any song, instrument, or sound they can find.
Blend targets together
Users can combine multiple references to create hybrid targets, enabling even further nuanced and personalized outcomes.
Outcome
This approach made the target system effectively limitless, allowing it to scale with the diversity of modern production. By enabling users to define and shape their own references, it increased trust in the system’s ability to guide them toward the right tonal balance for any mix.
Distinct identity within a shared system
Framing
A shared product philosophy created consistency across the series, but risked making each tool feel interchangeable. Each product needed a distinct identity that reflected its purpose while still fitting within a cohesive system.
Solution
I built each product’s identity around its name and the imagery it evoked, using those references to drive color, motion, and visual tone. This created a clear connection between what each tool does and how it feels, while maintaining a consistent structure across the series.
1 - Plasma
Draws from electricity, emphasizing energy, intensity, and high-frequency activity.
2 - Aurora
Draws from the aurora borealis, using light and shifting color to reflect atmosphere and space.
3 - Cascadia
Draws from water, with fluid motion and softer transitions that suggest flow and continuity.
Outcome
The result is a product family that feels cohesive at a system level while remaining visually distinct at the product level. Each tool is immediately recognizable, reinforcing its purpose without sacrificing consistency across the series.
Motion as feedback
Framing
The visual identity needed to do more than differentiate each product. It needed to reinforce the effect of the processing itself. Motion was an opportunity to make changes not just audible, but immediately visible.
Solution
I designed motion as a direct extension of the primary control, linking visual feedback to the effect in real time. As the control increases, the animation becomes more visible, revealing the impact of the processing.
To implement this within existing constraints, I developed a method using sprite sheets, the same approach used to render interface controls. This allowed the animations to run efficiently without introducing new technology or requiring additional engineering support.
Responsive feedback
Animations respond directly to the primary control, making changes visible as they happen.
Progressively revealed
A dark overlay fades as values increase, revealing the animation beneath and reinforcing the effect.
Efficient implementation
Built using sprite sheets to work within existing rendering constraints, avoiding new tech or added engineering lift.
Outcome
Motion becomes part of the interaction, not an added layer. It reinforces the effect of each tool while remaining performant and scalable. The implementation approach has since been adopted in subsequent iZotope products, extending its impact beyond the initial release.
Impact
Capitalizing on new value
The Catalyst series generated approximately $500K in its first year, exceeding forecasts by more than 250 percent. Aurora was the strongest performer, accounting for nearly half of total revenue and earning a nomination for a NAMM TEC Award. It was used on major commercial releases, including Chromakopia by Tyler, the Creator.
Beyond performance, the series influenced how iZotope approaches product scope and visual language. It established a repeatable model for balancing immediacy and control in complex audio tools, demonstrating that simpler, more expressive products can succeed commercially. The product philosophy, design system, and motion approach have since been carried forward into new releases.