onetest — Online Audio, Speaker & Headphone Tester

Sample Rate:48,000 Hz
Latency:~10 ms
Audio Engine:Ready
80%

Real-Time Audio Spectrum & Waveform

🎵
Relaxation SuiteReady to Play

Select a Relaxing Tone

Choose from 10 soothing ringtones and soundscapes crafted for calming audio testing.

60 FPS20 Hz – 20 kHz
Quick Utility Tests:

10 Relaxing Ringtones & Tones

10 Sounds
01
Zen Temple BellMeditation
528 Hz Solfeggio bell & rich harmonic resonance
02
Forest Rain & StreamNature
Gentle raindrops with soft flowing brook
03
Tibetan Singing BowlRelax
Harmonic 216 Hz brass bowl acoustic overtone
04
Morning Sunrise KalimbaMelody
Pentatonic chime sequence (C-E-G-A-C)
05
Celestial Ambient DriftAmbient
Lush detuned chord pad & deep spatial warmth
06
Lo-Fi Warm PianoLo-Fi
Fmaj7 - Em7 - Dm7 electric Rhodes keys
07
Ocean Tide WavesNature
Rhythmic incoming wave swell & foam recession
08
Gentle Wind HarpAcoustic
Delicate Aeolian string harmonics in the breeze
09
Cozy Fireplace EmbersCozy
Gentle fire glow, subtle wood pops & crackle
10
Deep Sleep 432 HzSleep
Calming 432 Hz theta waves & sub-bass warmth
💡 Click any sound to play. High-fidelity Web Audio synthesis with zero downloads required.