PORTHOLE
Chrome bezel, anodized dial, live needle — rendered in Blender.
Version 1.0.0 · iOS · iPadOS · watchOS
EVERY CENTVISIBLE.
A chromatic tuner built on the same signal-path obsession as our audio plugins. Sub-millisecond pitch detection, a calibrated cent scale you can actually read, and a needle that never lies.
- PLATFORMS
- iPhone · iPad · Watch
- DETECTION
- Sub-ms autocorrelation
- SKINS
- 5 gauge styles
BLACKSITE
PORTHOLE / 01
OndeAudioBUILD 10
01 / ARCHITECTURE
NOT A METER.A SIGNAL PATH.
SwiftUI drives the interface, Skia-accelerated rendering keeps every needle motion smooth, and a Core Audio tap feeds a sample-accurate autocorrelation pitch detector — the same DSP discipline as our desktop plugins, tuned for the phone in your hand.
Needle response settles in under 350ms, smoothed by an exponential moving average.
02 / ENGINES
FIVE GAUGES. ONE ENGINE.
NEEDLE
Classic analog sweep, warm and immediate.
RING
A luminous ring that closes as you land the note.
LED STRIP
Stage-ready horizontal LED ladder, readable from a distance.
MINIMAL
Just the note and the color. Nothing else.
03 / PERFORMANCE
BUILT TO BE TRUSTED.
Every reading is the real detector output — no smoothing that hides a bad take, no fake precision.
SUB-MS LATENCY
Autocorrelation pitch detection running on every audio buffer, not a throttled poll.
CHROMATIC
All twelve semitones, any octave — not locked to a fixed string set.
CALIBRATION
Adjustable A4 reference from 415 to 466 Hz for orchestral and historical tunings.
WATCH-READY
The same detector, a glanceable dial, tuning from your wrist mid-set.
04 / SOUND LAB
REFERENCE TONES.
Four pure tones used to validate the detector end-to-end — accurate within 3 cents on real audio, not synthetic frequency values.
SYSTEM.
OndeTuner runs natively on Apple Silicon devices — no server round-trip, no account, no ads. Your instrument never leaves your device.
- PLATFORMS
- iPhone · iPad · Apple Watch
- REQUIRES
- iOS 17+ · watchOS 10+
- LATENCY
- Sub-millisecond detection
- CALIBRATION
- ±50 cents, adjustable A4 reference
- SKINS
- 5 free gauge styles, more premium
- INSTRUMENTS
- Guitar · Bass · Voice · Chromatic
05 / ACCESS
PRIVATE BETA.
OndeTuner is in TestFlight beta. Request access and we'll send an invite.
No account required. No tracking. OndeAudio, 2026.