Perfect Your Hearing. Elevate Your Music. Experience More.

Take the FullScale Hearing Test on iOS, Android, Mac, or Windows in as little as 8 minutes.

See your full-spectrum hearing profile and use it for personalized listening.

Download ARIA ONE and start with a 30-day full-feature demo.

Keep using the free version forever, or unlock the full personalized system when ready.

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HOW IT WORKS
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FullScale Test

Test for your full spectrum hearing profile

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ARIA ONE

High resolution sound personalization software

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Hear Everything

Every track corrected to the way you actually hear

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FULLSCALE
HEARING TEST

Test your full-spectrum hearing from 125Hz to 20kHz on iOS, Android, Mac, or Windows in as little as 8 minutes.

Use any hearable off our list of calibrated devices for the best results.

Explore your hearing with free, full-spectrum, in-app results.

When the test ends, your profile is applied to real audio so you hear the difference on the spot. No account required — you can run the test anonymously.

The hearing test is also built into ARIA ONE — test, personalize, and listen all in one app.

Download on App Store Get it on Google Play
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ARIA ONE Simple UI — macros, audio player, personalized audio ARIA ONE Macro Editor — DSP controls, diamonds visualization, metering ARIA ONE Limiter and EQ — hearing profiles, frequency response, advanced DSP
ARIA ONE. FULL DEMO. FREE FOREVER.

ARIA ONE is the complete platform for personalized audio — hearing test, AI presets, DSP personalization, and playback in a single app. Choose your path and start listening.

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30-Day Full Demo — Try the complete ARIA ONE system with all advanced features unlocked.
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Free Version — Keep personalized listening, hearing correction, visualization, the simple limiter, and adaptive drive forever.
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Full License — Keep the complete desktop suite unlocked, including advanced modules, AI features, and the full Altitude Limiter plugin.

Download ARIA ONE and start free.

Download on TestFlight Get it on Google Play

Full ARIA ONE License

$99.00
$69.00

5 concurrent device activations

Download first; purchase Full only if you want to keep the complete suite unlocked after the demo.

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Crossfeed 2 — crossfeed controls with live response graphs and analyzers Corrective EQ — imported correction curve with FIR rendering and analyzers
FREE TOOLS.
NO CATCH.

The floor should be higher. Crossfeed 2 and Corrective EQ are free tools that do real work. Use them on their own, or purchase ARIA ONE to run them inside the larger personalized listening system.

CROSSFEED 2

FREE

Headphones that image like speakers. Blend the channels, set the cutoff and top-end compensation, then decide exactly how much you want with Wet/Dry — watching it happen on live response graphs.

Learn more

CORRECTIVE EQ

FREE

Already have an AutoEq or Equalizer APO file for your headphones? Drop it in. FIR or IIR, minimum or linear phase, up to 8× oversampling, and a real Wet/Dry mix so you can dial the correction back instead of taking all of it.

Learn more

INTRODUCING ARIA STUDIO

ARIA Studio Introduction

NO BARRIERS, NO LIMITS

THE ALTITUDE DIFFERENCE
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Industry's only full spectrum hearing test

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Lossless and high-resolution personalized hearing refinement software

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Engineered for any source, device, or listening environment

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Prioritizes the entire listening journey

Other Brands
Other brands
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Uncalibrated "ballpark guess" hearing profiles

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Lossy and low-fidelity DSP architectures

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Provide a single solution for earbuds

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Limit the listening journey to their hardware