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Hopping over to a tuner or your speaker settings between test tones? Each round trip back to the generator no longer piles up memory, so long sessions stay lighter and the frequency controls are back in reach sooner.
Sine, square & noise tone generator 1 Hz–22 kHz with sweep, binaural and presets
Tone Generator: Frequency Hz is an audio tone generator for your phone. Choose any frequency from 1 Hz to 22 kHz, press the big Play button under the dial and hear it right away. Sine, square, sawtooth and triangle waveforms, plus white, pink and brown noise. ▶ MAIN FEATURES • Frequency 1 Hz – 22 kHz: arrows, semitone and octave steps, A4 button • Note name and cents readout • Exact Hz entry for the right ear, mixer tones and sweep • Sine, square, sawtooth, triangle, white, pink and brown noise • Frequency sweep between two frequencies, once or looping • Mono, stereo, binaural beats and isochronic tones • Dual tone and a mixer for up to four tones • Presets that start the sound in one tap, and your own saved presets • Sleep timer: 15, 30 or 60 minutes • Instrument tuner using the microphone • Water Eject: 165 Hz at full volume to help push water out of the speaker ▶ HOW TO USE 1. Pick a waveform — sine gives the cleanest tone. 2. Set the frequency with the arrows or semitone steps, or tap a preset. 3. Keep the volume low to start. 4. Tap the big Play button (or the dial). 5. Try a preset, a sweep, or a binaural beat. ▶ PRESETS Tinnitus masking tone, sleep, A4 440 Hz, subwoofer 60 Hz, bass strings E A D G, dog whistle, cat repel, a brainwave beat pack and solfeggio tones. Each one plays as soon as you tap it. ▶ WHO USES IT • Musicians tuning to an exact Hz • Speaker, headphone and subwoofer testers • Students learning about sound and waveforms • Anyone who wants a steady tone or noise while focusing or resting ▶ SAFETY Start quiet — loud tones, especially high frequencies, can harm hearing and speakers. Brainwave and solfeggio presets are traditionally used in relaxation and focus routines and are not a medical or therapeutic treatment. The tinnitus preset is a masking tone, not a treatment. Available in 30 languages.