ToneCarve · how it works
Three steps from your dashboard to your mix.
ToneCarve replaces the drive-around guessing game with a measured cabin profile. Play a one-minute sweep from the driver seat, capture the response on the phone you already own, and load that profile into the ToneCarve DAW plugin — the carve closes the gap between your monitors and the car on every mix, before you ever pull out of the driveway.
The three steps
From your dashboard to your mix, in one record.
Sweep the cabin. Capture the response. Carve the EQ. Each step is independent — you can re-record any of them without losing the other two.
- 1
Step one · the sweep
Play a one-minute sweep from the driver seat.
Press play on the ToneCarve capture app and let the head unit run an exponential sweep from 20 Hz to 20 kHz. Sit in the driver seat you actually mix for, close the doors, kill the HVAC — the same acoustic environment your listeners will hear you in.
- Pink-noise floor to keep the sweep above road noise without distorting.
- Sixty seconds start-to-finish; the same recording, every time you re-measure.
- No extra gear — your car, your stereo, your phone. Nothing to calibrate.
Driver-seat cabin framing the windscreen, with the exponential sweep bathing the interior from the head unit.
- 2
Step two · the capture
Hold the phone where your ear sits. Six seconds.
The capture app records the sweep response through the phone microphone and computes the cabin impulse response — a six-second fingerprint that maps how your specific vehicle smears the bass, swallows the midrange, and burns the highs.
- Per-vehicle profile, not a generic average — your Civic is not their Civic.
- 48 kHz raw IR, downsampled only when you choose to keep a baseline in the library.
- Saved as a portable profile you can reload on any future mix session.
The cabin as the subject — phone clamped at ear height, capturing a six-second impulse response from the surfaces around it.
- 3
Step three · the plugin
Load the profile in the DAW plugin. A/B on the mix bus.
Open ToneCarve in your DAW, pick the measured cabin profile, pick your monitor-room target, and the engine emits a corrective EQ carve. Toggle A/B on the mix bus and audition the corrected response against the raw cabin — the same axes, the same meters, the same song.
- Suggested EQ bands with the numerical moves spelled out — adjust any band by hand.
- Save the carve with the project so the carve stays paired with the song.
- Iterate EQ on the next driver-seat profile without leaving the DAW.
The ToneCarve plugin: measured cabin profile (dashed) and ToneCarve carve (solid) over a flat target.
No external sound card. No measurement microphone. No driver-seat protocol to memorize. The capture app guides you through each step and saves the profile to the library so you can reload it on the next song.
Why the workflow holds
Three things the measured profile gives you that a Sunday drive doesn’t.
Cabin profile
No two cabins rattle the same way. ToneCarve treats the cabin as another listening room in the same chain — measured, profiled, and corrected on its own terms.
Reference target
The plugin carries a neutral reference so the EQ is not guessed against the cabin alone — it is a deliberate translation from your monitors to the road.
Audit trail
Reload the same cabin profile on any future session, save the carve with the project, and the next car test starts halfway closed. The guesswork stops being the bottleneck.
What a real curve actually looks like
Before you measure your own cabin, see one on paper.
The 2022 Honda Accord — front doors, dash tweeters, rear deck 6×9 — is one of four illustrative fixtures in our sample library. The dashed line is the illustrative fixture response; the solid line is the corrective carve the plugin would suggest against a flat monitor target.
Open the sample profile libraryBe the first to try it.
The first hundred signups drive the next validation step — measured cabins from real-world vehicles, a real plugin you can A/B on a mix bus, and a reference library shaped from day-one contributors rather than a generic fleet average.
- Join the early-access list and the next capture cohort goes out to you first.
- Your measured cabin ends up in the reference library on day one — the basis every later sign-up’s carve is shaped against.
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