ARIA ONE

High-Resolution Sound Personalization Software

ARIA ONE delivers full-spectrum sound personalization across macOS, Windows, iOS, and Android, built from your unique hearing profile.

It includes the FullScale hearing test, high-resolution hearing correction, adaptive multi-stage lookahead limiting, AI-guided personalization, cross-device sync, and a built-in audio player. On desktop, ARIA ONE is available as standalone software and in VST3 and AUv3 formats.

Desktop beta downloads are live now. Free mobile access follows as iOS and Android links go live.

iOS Free soon
Android Free soon

AI Credit Pack

20 Credits — $19.99

Free credits included with every account

ARIA ONE advanced metering and gain reduction analysis ARIA ONE advanced limiter and EQ with active audio metering
ARIA ONE macro editor with Diamonds particle visualization
ONE SYSTEM FOR PERSONALIZED LISTENING

ARIA ONE brings together the FullScale hearing test, high-resolution hearing correction, adaptive multi-stage lookahead limiting, AI personalization, cross-device sync, and an audio player in one connected system.

FullScale Test

Built-in full-spectrum hearing test with Instant, Quick Results, and Full Accuracy pathways.

Hearing Correction

High-resolution hearing correction built from your profile.

Adaptive Limiting

Adaptive multi-stage lookahead limiting for loudness control and peak management.

AI Personalization

AI helps generate presets, guide setup, answer questions, generate guided tutorials, and refine your sound over time.

Cross-Device Sync

Keep your presets in sync across devices while each endpoint can keep and share its own favorites.

Audio Player

An audio player keeps playback, personalization, and sound control inside one listening environment.

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ARIA ONE onboarding — choose your path to personalized audio
START YOUR WAY

Hearing test, AI presets, DSP personalization, and audio playback — all in one app. Choose the path that fits.

1.
Instant — Age-matched profile, no test needed. Listening in under a minute.
2.
Quick Results — Run the hearing test without the full setup flow.
3.
Full Accuracy — Calibrated setup with your specific headphones for the most precise profile.

Every path leads to the same engine — upgrade anytime.

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FullScale hearing test in progress — frequency detection at 1000 Hz FullScale hearing test in Simple View — mobile-friendly layout
FULLSCALE
HEARING TEST

ARIA ONE includes the complete FullScale hearing test — a full-spectrum assessment that maps up to 37 frequencies per ear between 125 Hz and 20 kHz.

Choose a faster path or a deeper assessment with test pathways that balance speed, resolution, and precision.

Your hearing profile directly powers correction, limiter behavior, presets, and the rest of your personalized listening workflow.

EXPLORE FULLSCALE
Acoustic speakers background
ARIA ONE EQ correction curves and hearing profile visualization ARIA ONE Simple View — hearing profile selector on mobile layout
SOUND PERSONALIZATION

ARIA ONE combines full-spectrum hearing correction, advanced dual-pass dynamics, and pro-grade DSP to create a more effective personal listening system.

ARIA ONE is where hearing-based onboarding, personalization, and connected workflows come together, with export paths into ARIA Studio's offline workflow.

It shares core limiter logic and preset relationships with Absolute Zero.

SIGNAL PROCESSING

ARIA ONE Advanced View — full EQ correction with hearing profiles and frequency response curves ARIA ONE Simple View — home screen with macro controls
ARIA ONE Advanced View — full interface with EQ, limiter, and metering ARIA ONE Simple View — DSP controls expanded on mobile layout
ARIA ONE Advanced View — dual-pass lookahead limiter with waveform and gain reduction metering
ARIA ONE Waveform window — input, output, and gain reduction visualization ARIA ONE Polar Sample Party — stereo field and phase correlation visualization ARIA ONE FFT Spectrum analyzer — stereo frequency analysis with Mid/Sides view ARIA ONE Lissajous scope — stereo phase and imaging visualization ARIA ONE Loudness Meter — input, output, and delta LUFS with true peak metering
ARIA ONE macro panel with spline curves and parameter controls ARIA ONE Simple View — home screen with macro controls
ARIA ONE dual hearing profile browser — Profile 1 and Profile 2 with server, factory, and average profiles
ARIA ONE input adaptive gain — L2 Servo envelope, ramp timeline, and crest balance
ARIA ONE Advanced View — hearing correction with SOS biquad filter path
ARIA ONE Blackout mode — interface off, audio processing continues

Sound personalization in ARIA ONE is driven by your FullScale hearing test results. The system derives high-resolution FIR filters personalized to your hearing across the full audible spectrum.

Tailor ARIA to your needs with three operating modes, each built on a different psychoacoustic approach to sound refinement. Choose from Mid/Side, Left-Right Linked, or Left-Right Decoupled processing to match your preferences and listening setup.

ARIA ONE's dynamics engine is powered by Absolute Zero — a dual-pass limiter with four selectable algorithms, optional multiband processing, and a full safety chain. Limiter presets are shared between both applications, so refinements made in one are instantly available in the other.

ARIA ONE's advanced plotting, visualizations, and metering let you see the precise effects on your sound. Waveform, FFT, loudness, phase, and stereo views provide a clear picture of exactly what the system is doing.

Map up to four macro knobs and two toggles to any combination of DSP parameters through custom response curves. Macros work as a non-destructive overlay — experiment freely without altering your saved preset, and bake adjustments into your parameters when you are ready.

Blend multiple hearing profiles together inside ARIA ONE. Choose your favorite, merge it with a factory profile, or combine both to fine-tune your listening experience.

An intelligent pre-conditioning stage that levels your input before it reaches the limiter, keeping Drive in the sweet spot regardless of source volume. Currently in development — the interface and parameter storage are complete, with content-aware adaptive behavior arriving in a future update.

ARIA ONE includes both FIR convolution and SOS (cascaded biquad) hearing correction. SOS uses less CPU and memory but does not match FIR precision. Both are built in so you can hear the difference and choose.

Blackout mode turns off the entire interface while audio processing continues uninterrupted. Reducing draw calls frees CPU and GPU resources — useful during critical listening, live performance, or any session where the display is not needed.

DAILY LISTENING, PLAYER, AND FAVORITES

ARIA ONE gives you fast daily control over a serious personalization system — with one-tap favorites, an audio player, AI help, and quick sound shaping. Choose Cloud Mode for sync and AI features, or Local Mode for an offline-first workflow.

One-Tap Favorites

Switch between saved listening states instantly without diving into technical controls.

Save What You Like

When you land on a sound you love, save it back into your personal listening system and keep it available across your ecosystem.

Built-In Player

Play your own library directly inside ARIA ONE, or route system audio through the app for a single listening workflow.

AI Help

Use the AI assistant for preset generation, setup guidance, and help while you listen — not just at the beginning.

Quick Controls

Adjust the character of your sound fast with high-level controls that shape multiple parameters at once.

Expand When You Need More

Keep the interface compact for everyday use, then open more control when you want to explore deeper.

ARIA ONE registered devices panel showing multi-device sync with mood slots
SYNC ACROSS
YOUR DEVICES
1
Preset Sync Across Devices Personalization synchronizing across your setup makes moving between devices easy.
2
Control One Device From Another Work on another device remotely and push changes back and forth.
3
Endpoint-Specific Listening States Each device maintains its own listening state across 3 endpoint specific preset slots.
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ARIA ONE Advanced View with EQ correction, hearing profiles, and frequency response curves ARIA ONE Simple View — macro controls and audio player on mobile layout
SIMPLE VIEW OR ADVANCED VIEW

Switch between views at any time. Your hearing profile, presets, and sync state carry over.

Advanced View

The full DSP environment. EQ correction, multiband dynamics, stereo processing, macro routing, and real-time analysis. 400+ parameters.

Simple View

Three macro controls, built-in playback, and one-tap presets. Same personalization underneath.

ARIA ONE AI Assistant delivering a personalized preset with detailed explanation
ARIA AI PERSONALIZATION ASSISTANT

ARIA AI is a personalization assistant built around your hearing profile, your setup, and the way you listen.

Use it during onboarding to refine your listening state, get help with features and controls, or generate guided in-app tutorials for any tool or workflow. The same framework supports mixing education, content-specific tuning, and interactive A/B demonstrations — all running on your own hearing profile.

As your preferences evolve, ARIA AI adjusts your sound with you — so your correction stays current.

Explore ARIA AI
AI Credits — sound wave visualization
AI CREDITS

Every ARIA ONE account includes 5 free AI credits — enough to explore everything ARIA AI has to offer. Credits are only consumed when your result is successfully delivered, never when a request is submitted.

One credit per successful delivery:

  • Preset creation and generation
  • Real-time tuning and adjustment
  • Custom guided in-app tutorials
  • Help and Q&A

AI Credit Pack

20 Credits — $19.99

Free credits included with every account

CLOUD MODE OR LOCAL MODE

ARIA ONE can work as a connected system or as a local-first listening tool. Cloud Mode gives you sync, AI features, and cross-device continuity. Local Mode keeps your workflow on your machine. This is set per machine during setup.

Cloud Mode
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Sync hearing profiles, presets, and favorites across devices

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AI preset generation and optimization features

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Remote device management and cross-device control

Local Mode
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Run ARIA ONE as an offline-first tool on the current device

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Private workflows with no cloud dependency

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Great for travel, focused sessions, and simpler setups

ARIA ONE mobile experience with the same hearing and personalization system
ARIA ONE ON MOBILE

ARIA ONE on mobile is the fastest way to start using the full system while the broader vision continues to expand.

What users should know:

  • ARIA ONE is built for serious listeners.
  • Mobile is an interim release.
  • It gets ARIA ONE into your hands now.
  • A more dedicated player experience is still coming.
Download on the App Store
Get it on Google Play

Coming soon

PART OF THE ALTITUDE PERSONALIZATION ECOSYSTEM

ARIA ONE does not live alone. It connects hearing test workflows, correction, limiter behavior, and export paths across the wider Altitude Audio platform.

FullScale

Use FullScale inside ARIA ONE, as a standalone app, or on mobile — then bring the same hearing data back into one connected personalization workflow.

Learn More →

ARIA Studio

Move hearing profiles and preset work out to ARIA Studio when you want a more offline or production-focused environment.

Learn More →

Absolute Zero

ARIA ONE and Absolute Zero share core dynamics logic and preset relationships, so limiter behavior can travel across products instead of living in isolation.

Learn More →

Crossfeed

Crossfeed blends content between ears, creating a natural, speaker-like listening experience while preserving stereo width and detail.

Learn More →

HELP, GUIDANCE,
AND COMMUNITY

ARIA ONE includes guided onboarding, contextual help, AI-assisted guidance, a built-in manual, and deeper troubleshooting resources when you need them. For direct support, updates, and conversation with the team and early users, join the Discord community or reach out at contact@altitude.audio.

TECHNICAL SPECS

Mac

CPU: Apple Silicon M1+ (Arm64) or Intel Core i5/i7/i9/Xeon W 2013+

Memory Minimum: 8 GB RAM (16 GB recommended) 16 GB free disk space on the system drive

Operating System: macOS Ventura 13 or newer

Screen Resolution:
Minimum: 1280x1024
Recommended: 1600x1024

Windows

CPU: X64 compatible Intel or AMD CPU

Memory Minimum: 8 GB RAM (16 GB recommended) 16 GB free disk space on the system drive

Operating System: Windows 11

Screen Resolution:
Minimum: 1280x1024
Recommended: 1600x1024

Supported Plugin Formats

macOS: VST3, AUv3, Standalone

Windows: VST3, Standalone

Digital Audio Workstations (DAWs) that support these plugin formats will host ARIA ONE.

We're working to bring an AAX version next.

Audio Routing

Standalone mode uses a Virtual Audio Device (VAD) for system audio routing. Plugin mode inherits routing from the host DAW.

macOS: ARIA-Audio-VAD (included with ARIA Studio), BlackHole, or Loopback. Windows: VB-Audio HiFi Cable or VB-Cable. Audio driver: Core Audio (macOS), WASAPI (Windows).

Sample Rate

Both the plugin and standalone app support sample rates ranging from 44.1 kHz to 192 kHz.

Need the full operational reference? The user manual covers setup, routing, sync, correction, and device workflows in detail.

VST is a trademark of Steinberg Media Technologies GmbH, registered in Europe and other countries.

ASIO is a registered trademark of Steinberg Media Technologies GmbH