LeCoqRoti
A plugin that overlays your mix’s frequency analysis onto calibrated genre curves, then lets you adjust compatible iZotope equalisers directly from its interface.
Target curves and controls: 12 genres plus vocal balance monitoring
- Checking a master against 12 target curves spanning pop, rock, hip-hop and orchestral music
- Controlling Ozone and Neutron equalisers without leaving the metering window
- Monitoring vocal balance, dynamics and stereo width in a single view — new meters added in version 3
- Shaping tones with a built-in hybrid EQ when you need quick, broad corrections
- Using the included Relay utility to route audio from any track into the analysis engine
Curves as guides: why a dark ballad won't hit a pop target
- The macOS minimum is Sonoma 14.7; it also runs on Sequoia 15.4 and Tahoe 26.1
- Genre curves are a guide, not a rule — a dark ballad will never match a pop curve exactly
- The interface is most efficient when you already use Ozone or Neutron in your session
Vocal balance rescue: catching a 2 dB deficit your ears missed
A mix engineer finishing a dense pop track gets immediate value from Tonal Balance Control: the vocal balance meter alone can reveal that a lead vocal sits 2 dB too quiet against the instrumental bed, something a tired ear might miss at the end of a long session. Mastering engineers working across genres find the custom reference curve indispensable — loading a client's reference track and watching the real-time overlay removes guesswork when matching a requested sound.
Bedroom producers with untreated rooms gain a visual safety net. The stereo width meter catches hard-panned elements that disappear in mono, while the dynamics readout flags sections that might collapse on small speakers. Film and game composers, who often juggle orchestral depth against electronic elements, appreciate that the 12 genre curves include orchestral music — a starting point for balancing strings against synth bass that few other metering tools offer.
Users who already own Ozone or Neutron get the deepest integration: opening an equaliser module directly from the Tonal Balance Control window turns analysis into action without switching plugin windows. Those working entirely outside the iZotope ecosystem can still route audio through the included Relay utility on any track, though the workflow feels slightly more deliberate without the one-click equaliser access.
Group-level checks: using Relay on busses before the master
Tonal Balance Control sits on the master bus in most setups, but Relay opens other configurations. Place Relay on individual busses — drums, vocals, synths — and you can check tonal balance at the group level before signals reach the master. This catches low-end buildup in the drum bus early, rather than discovering it when the full mix is already printed.
The standalone desktop app, new in version 3, means you can analyse reference material outside a DAW session. Drag a mastered track into the app during a coffee break, study its curve, then return to your session with a clearer picture of where your mix diverges. The app works alongside macOS audio routing via BlackHole or Loopback for system-wide analysis, though that setup requires third-party routing.
Side-by-side with Neutron's Mix Assistant, the plugin confirms automated suggestions against visual evidence. Mix Assistant might propose a high-shelf boost on the vocal bus; Tonal Balance Control shows whether that boost brings the vocal balance meter into the target zone or overshoots it. With Ozone's Master Assistant, the relationship is complementary — Master Assistant sets broad processing, Tonal Balance Control verifies the result against genre norms.
Hybrid EQ built in: broad tonal moves without leaving the plugin
The hybrid EQ built into version 3 means you no longer need to open a separate equaliser for broad tonal moves. It is not a surgical tool — it lacks the band count and Q precision of Ozone's EQ module — but for gentle tilts and wide bell curves applied while watching the analysis, it reduces plugin-hopping significantly. A mix engineer working on a deadline can nudge the low end up by 1.5 dB with a wide shelf and see the curve respond in real time, all within one window.
The vocal balance meter changes how quickly vocal levels get locked in. Before version 3, you checked vocal presence by ear and by A/B comparison with references. Now a dedicated meter compares the vocal range to the full spectrum, making it obvious when a dense arrangement buries the voice between 2 kHz and 4 kHz. The dynamics meter adds a similar shortcut: rather than squinting at a waveform or relying solely on loudness metering, you see at a glance whether the crest factor matches the genre target.
Quick import from Tonal Balance Control 2 preserves custom reference curves and settings, so users upgrading mid-project lose no work. The standalone app, while simple, shifts the plugin from a session-only tool to something you can consult before even launching a DAW — a small change in behaviour that becomes habit quickly.
Chasing the curve: why absolute targets create bloated mixes
The most common error is treating the genre curves as absolute targets. A sparse acoustic track will never fill the low-end curve of a rock reference, and chasing that match leads to bloated, unnatural mixes. The curves describe averages across commercial releases in a genre; they are a sanity check, not a mixing recipe.
Another mistake: placing Tonal Balance Control on individual tracks instead of the master bus or a group bus with Relay. The plugin analyses whatever signal it receives, and a single snare track will show a wildly skewed curve that prompts corrective moves that make no sense in context. Beginners also overlook Relay's gain and pan controls, routing audio for analysis without realising they can adjust level and stereo placement directly from the utility.
Ignoring the stereo width meter when working in headphones is a subtle but damaging habit. Headphones exaggerate stereo separation, and a mix that sounds wide and spacious on cans can collapse when summed to mono. The width meter shows exactly how much side information exists in each frequency band — a reality check that headphone mixing desperately needs.
Finally, new users sometimes place the plugin on the master bus and leave it there during export, unaware that it passes audio through unchanged. It is a metering tool, not a processor; the hybrid EQ must be engaged deliberately, and the analysis window itself does not alter the signal. But the instinct to remove analysers before bouncing is worth cultivating, if only to keep the session clean.
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