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SETUP GUIDES

Step-by-step walkthroughs for getting personalized audio running on your system

Setting Up Crossfeed

Route system audio into the standalone Crossfeed application through a virtual audio device, confirm the signal path, and learn what crossfeed changes in a stereo mix.

CrossfeedStandalonemacOSWindowsFree

Setting Up Corrective EQ

Route system audio into the standalone Corrective EQ application, import a headphone or room correction curve, and confirm it is actually in the signal path.

Corrective EQStandalonemacOSWindows

ARIA Studio with SoundSource and Local-Only Testing

Set up ARIA Studio as an AU plugin routed through SoundSource on macOS. Complete a hearing test anonymously using the desktop FullScale app with no account required, then import your results into ARIA Studio for personalized audio correction.

ARIA StudioSoundSourcemacOSLocal-Only

Looking for in-depth feature tutorials? ARIA Studio Tutorials →

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Phone and laptop with ARIA

About Us

ALTITUDE is on a mission to bring barrier-free hearing to the world. We're setting a new standard with the first calibrated, full-spectrum hearing test, enabling ARIA ONE, our lossless, high-resolution, sound personalization technology.

Our systems deliver universally accessible, software-based hearing solutions, free from hardware restrictions.

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  • ARIA AI
  • Altitude Limiter
  • Crossfeed 2
  • Corrective EQ

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© 2026 Altitude Auditory Innovations LLC. All rights reserved.
Patent pending — PCT/US2024/036841

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© 2026 Altitude Auditory Innovations LLC. All rights reserved.
Patent pending — PCT/US2024/036841