ARIA ONE

ARIA ONE is a personalized audio app built around your hearing, with Crossfeed and headphone correction included.

WHAT'S INCLUDED
- Local media player for imported audio files
- FullScale full-spectrum hearing test
- High-resolution hearing correction and sound personalization DSP
- Dual-pass lookahead dynamics
- Adaptive Drive gain management
- Crossfeed headphone imaging
- Corrective EQ headphone correction
- Cross-device sync
- ARIA AI preset tuning, setup, and help agent


GETTING STARTED
1. Follow the Instant setup pathway.
2. Enter your age range to load an age-matched profile.
3. Press Play on the included professional demo track.
4. Toggle A/B to Personalized and hear the correction immediately.
5. Work with ARIA AI to turn your feedback, listening goals, and music preferences into personalized presets built from your starting correction.
6. Return when you are ready to complete your hearing test and personalize the system with your own FullScale hearing profile.

FULL-SPECTRUM HEARING TEST
- Measures up to 37 frequencies per ear
- Covers 125 Hz to 20 kHz in about 8 minutes
- Instant, Quick Results, and Full Accuracy paths
- Shows results in the app and saves them to your profile
- Test history and profile sync through your Altitude account

Your full-spectrum hearing profile drives the personalized listening system, from hearing correction through ARIA AI preset tuning.

PLAYING YOUR MUSIC
- Plays audio files stored on your mobile device
- Supports common local audio file formats
- Routes playback through the sound personalization signal processing chain
- Use Crossfeed for more speaker-like headphone imaging
- Use Corrective EQ to correct headphone response from CSV or AutoEQ data

The free launch version focuses on local file playback. Streaming support is planned for a later release.

ARIA AI PERSONALIZED TUNING AND HELP
- Complimentary ARIA AI credits are included for onboarding setup and first refinements
- Generate and refine listening states from plain-language requests
- Ask questions about setup, controls, and workflows inside the app
- Generate guided in-app tutorials you can replay later
- Additional ARIA AI credits are available as in-app purchases

CLOUD MODE
- Mobile uses Cloud Mode for sign-in, profile sync, ARIA AI, device registration, and cross-device continuity
- Hearing profiles, presets, and device states sync across the Altitude ecosystem
- Desktop can extend and fine-tune the same profile when you want deeper control

DSP FEATURES INCLUDED
- FullScale: 125 Hz to 20 kHz, up to 37 frequencies per ear
- Hearing correction: FIR, SOS/IIR, profile blending, smoothing, intensity, and drive controls
- Filter quality: native rate, minimum phase, linear phase, up to 8x oversampling, and long FIR filters
- Dynamics: dual-pass lookahead limiting, 480 limiter variants, four algorithms, multiband mode, and safety stages
- Adaptive Drive: input gain management and personalized gain settings for factory presets
- Crossfeed: speaker-like headphone imaging with focus, width, tone, and wet/dry controls
- Corrective EQ: AutoEQ, Equalizer APO, CSV, text, .eq, and .apo imports for headphone or room correction
- Corrective EQ rendering: FIR, IIR/SOS, minimum phase, linear phase, native rate, 8x oversampling, and wet mix
- Macro control: four macro knobs, two toggles, custom response curves, and non-destructive control overlays


NOTICE

ARIA ONE is a sound personalization and hearing-aware listening tool. It is not a medical diagnostic or treatment tool. If you have hearing-related concerns, consult a medical doctor or qualified health professional.