ARIA ONE vs vPlayer HiFi

ARIA ONE is a sound personalization app built from your unique hearing profile. Take the FullScale hearing test — a full-spectrum assessment mapping up to 37 frequencies per ear. Choose Instant, Quick Results, or Full Accuracy pathways. Complete a profile in as little as 8 minutes. Your hearing profile directly powers correction, limiter behavior, presets, and your personalized listening workflow. Three macro controls — Drive, Intensity, and Smoothing — shape the character of your sound. Three mood presets — Calm, Natural, and Intense — switch your full DSP state with a single tap. Play your own music library through your personalized DSP chain with the built-in audio player. ARIA AI gives you access to the full parameter space without touching a single knob. Describe what you want — "make the bass warmer," "tighten the transients," "reduce harshness" — and the AI adjusts one or many parameters at once across correction, dynamics, drive, and limiting. Choose Standard, Fine Tune, or Thinking agents depending on how broad or surgical you want the changes. Keep refining over time instead of learning the parameter space yourself. Presets, hearing profiles, and mood assignments sync across your devices. Use the Advanced View on Mac or Windows to fine-tune your sound with 400+ parameters, then push your presets and moods directly to your phone. Check out a mobile device remotely, dial in its settings from the full desktop interface, and commit changes back. On desktop, ARIA ONE is available as a standalone app and VST3/AUv3 plugin with eight graphing windows and ITU-R BS.1770 loudness metering. Part of the Altitude personalization ecosystem: FullScale, ARIA Studio, Altitude Limiter, and Crossfeed. FEATURES Hearing Test • FullScale hearing test — full-spectrum, 125 Hz to 20 kHz • Up to 37 frequencies per ear • Three pathways: Full Accuracy, Quick Results, Instant • Demographic-based average profiles for instant demo • Test history and result export Sound Personalization • High-resolution hearing correction from FIR filters • Adaptive multi-stage lookahead limiting • Four limiter algorithms • Dual-pass dynamics processing • Input adaptive gain normalization Controls • Three macro sliders with curve-to-parameter mapping • Two macro toggle switches • Mood presets: Calm, Natural, Intense • One-tap mood switching with full DSP state swap • Bypass toggle and Crossfeed toggle Audio Player • Built-in player with playlist management • Library browser with import and song actions • Playback queue with drag reorder • Saved playlists with create, rename, sort • Now Playing strip with transport, seek, repeat, shuffle • Dual-source playback: internal player or system audio AI Personalization • Natural language control over the full parameter space • Adjusts correction, dynamics, drive, macros, and limiting • Four AI agents: Standard, Fine Tune, Thinking, Legacy • Device-specific AI-generated live presets • Iterative refinement — keep shaping your sound over time Sync & Devices • Cloud sync for profiles, presets, and mood assignments • Per-device mood preset management • Remote device checkout and commit • Copy and paste moods between devices • Cross-product sync with Absolute Zero • One-way export to ARIA Studio Preset System • Meta, Full, Limiter, EQ, Macro, and Adaptive Input presets • Factory and user preset libraries • Preset browser with category navigation Desktop Advanced View (Mac & Windows) • 400+ DSP parameters • EQ correction curves with multiband EQ overlay • Stereo processing: Mid/Side, LR, width, crossfeed • Macro assignment panel with curve editor • Eight standalone graphing windows • Vectorscope, Polar Sample, Polar Level, FFT, Waveform • ITU-R BS.1770 loudness metering • VST3 and AUv3 plugin formats Onboarding • Guided seven-phase setup flow • Audio verification and volume calibration • AI-assisted demonstration Localization • English, German, Spanish, French, Japanese, Portuguese, Russian

vPlayer HiFi is a dedicated audio player for those who care about sound quality above all else. ▸ Bit‑perfect — Custom AudioUnit pipeline with hardware sample‑rate. vPlayer matches your source rate so the system never touches your signal. ▸ Native DSD Playback — DSF and DFF up to DSD512, decoded through a custom engine with 3 selectable FIR decimation filters (Steep / Gentle / Wide Bandwidth). Choose 176.4kHz or 352.8kHz output. No transcoding, no compromise. ▸ SACD-R ISO Decoder — Native Scarlet Book TOC parser. DSD64 playback with selectable decimation (176.4 kHz or 352.8 kHz). ▸ Memory Playback — Preload entire tracks into a dedicated 600 MB memory buffer — enough to hold a full CD‑length album or a high‑rate DSD track. Eliminates jitter from live file I/O. ▸ Polyphase SRC + FIR Upsampling — 6 SRC algorithms from Linear to Sinc‑512 tap with Kaiser‑windowed polyphase resampling. Independent FIR upsampling at 2× / 4× / 8× with selectable tap count (31 / 63 / 127) and homomorphic Minimum‑Phase conversion. SRC and FIR are mutually exclusive — one clean path, no double‑processing. ▸ Formats — MP3 · AIFF · M4A (Lite). Upgrade to Pro for studio‑grade WAV / FLAC / DSD (DSF, DFF) native playback. ▸ 10‑Band Graphic EQ — ±12 dB manual adjustment with per‑band reference guide. Instant response, zero latency. Toggle on/off directly from the signal chain bar. ▸ 638 AutoEq Headphone Presets — Directly load fixed‑band EQ corrections from the oratory1990 measurement database. Pick your brand, pick your model, done. Preamp is auto‑computed to prevent clipping. ▸ Parametric EQ (PEQ) — Full 10-band parametric equalizer: frequency, Q, and gain per band, with peaking, low-shelf, and high-shelf filters. Replaces the graphic EQ for surgical control. 13 Music Genre Presets — Classical, jazz, vocal, rock/pop, and folk tone shaping, crafted for vPlayer. ▸ Room EQ — Measure your room with a sine sweep and apply automatic correction, with Flat or Warm target curves. ▸ Output Covered — Built‑in speaker, wired headphones, AirPlay, Bluetooth, and external USB DAC. vPlayer detects your active route and matches the hardware sample rate automatically. ▸ Hands‑On Signal Chain — DSD · MEM · SRC ⊕ FIR · EQ · DITH. Tap any chip to open its config panel — switch DSD filters, choose SRC algorithms, set FIR parameters, adjust EQ. Real‑time route detection shows your output device. ▸ Shazam Recognition — Identify any music playing around you with one tap. Built on Apple ShazamKit. ▸ Music Painting — Generative art engine. Every track paints a unique visual — Constellation or Impression style. Save and browse your gallery. ▸ Drag album folders via Finder or iTunes to the App's sharing folder. Pull down to refresh. Swipe to delete. Folders are auto‑detected. ▸ Dual Theme — Dark & Silver. Tap the vPlayer title to switch.