Frequency Generator vs Signal & Frequency Generator

Frequency Generator turns your iPhone into a precise, studio-clean tone source — for sleep, focus, relaxation, and sound exploration. Dial in any frequency from a deep 1 Hz rumble to a 22,000 Hz shimmer, shape its character, and press play. WIND DOWN AND SLEEP Mask traffic, chatter, and a restless mind with smooth white, pink, or brown noise. Start it playing, lock your phone, and let it run all night in the background. FIND YOUR FOCUS Drop into deep work with binaural beats and isochronic tones, or let steady noise blur out distractions around you. Made for studying, writing, and long concentration sessions. RELAX, MEDITATE, RESTORE Play the tones people reach for to unwind — including 432 Hz, 528 Hz, and the full set of Solfeggio frequencies — as a calm backdrop for meditation, breathwork, or simply slowing down. PLAY ANY NOTE Sound any pitch across nine octaves (C0–B8) as a clean reference tone, and set your concert pitch anywhere from 432 to 446 Hz. Ideal for tuning by ear, training your ear to intervals, or checking a note on the fly. EXPLORE THE FULL SPECTRUM Sweep all the way up to 22 kHz to hear the high and ultrasonic frequencies your ears, headphones, and speakers can reproduce. Shape the timbre with sine, square, sawtooth, or triangle waveforms. PRECISE, EFFORTLESS CONTROL Set an exact frequency down to the hertz, fine-tune it on a smooth slider, and switch sounds instantly. No clutter, no setup — just the tone you want, the moment you want it. PICK UP WHERE YOU LEFT OFF Every tone you play is saved to Recents. Pin your favorites, give them names, and replay any setup with a single tap. KEEPS PLAYING Full background audio with lock-screen and Control Center controls, so your sound stays with you while you get on with everything else. Frequency Generator is free to use, with an optional Pro upgrade that unlocks every waveform and noise color, binaural beats and isochronic tones, and the Solfeggio and musical-note presets. Privacy Policy: https://frequency-analyzer.com/privacy-policy-frequency-generator/ Terms of Use: https://frequency-analyzer.com/terms-and-conditions-frequency-generator/

Signal & Frequency Generator is a precise tool for generating audio signals on iPhone and iPad. The app supports single tones, dual tones, MultiTone signals, noise, sweeps, and sequences. Frequencies can be set from 20 Hz to 20 kHz, entered manually, or selected from quick frequency presets. For testing speakers, headphones, stereo setups, or audio chains, the app includes channel routing, phase offset, adjustable amplitude, burst mode, and a waveform preview. Custom configurations can be saved as presets and restored later. High levels and high frequencies can damage hearing. Start with low volume and be especially careful with headphones. Features - Signal generator with multiple modes: single tone, dual tone, MultiTone, noise, and sweep. - Frequency range from 20 Hz to 20 kHz. - Manual frequency entry with Hz/kHz display. - Logarithmic frequency slider for fast adjustments across the full frequency range. - Fine frequency adjustment in steps of 0.1 Hz, 1 Hz, 10 Hz, and 100 Hz. - Quick selection for fixed frequencies: 20 Hz, 31.5 Hz, 63 Hz, 125 Hz, 250 Hz, 500 Hz, 1 kHz, 2 kHz, 4 kHz, 8 kHz, 10 kHz, 16 kHz, and 20 kHz. - Four waveforms: sine, square, triangle, and sawtooth. - Adjustable amplitude per tone. - Stereo output with channel selection: left, right, or left and right. - Phase offset between left and right channel from 0 to 360 degrees. - Dual tone mode for two simultaneously generated frequencies. - MultiTone mode with up to 16 configurable tones at once. - Individual MultiTone tones can be enabled, disabled, added, and deleted. - Noise generator with white, pink, and brown noise. - Sweep generator with start frequency, end frequency, and duration. - Sweep scales: linear and logarithmic. - Sweep repeat modes: once, loop, or back and forth. - Sequence mode with multiple tone steps. - Sequence steps can be added, deleted, edited, and reordered. - Adjustable duration per sequence step. - Sequences can be played once or repeated. - Burst mode for gated signals with adjustable on and off duration. - Waveform preview with time window and period display. - Transport bar with start/pause and master volume. - Maximum output amplitude can be limited as a safety setting. - Optional screen awake mode during playback. - Preset system for saving and restoring custom configurations. - Factory presets for 1 kHz reference, full-range sweep, pink noise, and stereo check. - Presets are stored locally. - Audio output at 48 kHz sample rate, stereo, and 32-bit float. - Smooth master gain smoothing and output limiting against clipping. Generator: choose a mode (Single, Dual, MultiTone, Noise, Sweep). Set frequency by typing a value, by the logarithmic slider, by the +/- fine steps (0.1 / 1 / 10 / 100 Hz), or by tapping a preset frequency (20 Hz … 20 kHz). Choose a waveform (sine, square, triangle, sawtooth), amplitude, output channel (left, right, both) and stereo phase offset (0–360°). Dual mode adds a second independent tone; MultiTone allows up to 16 simultaneous tones that can each be added, enabled, disabled or deleted; Noise offers white, pink and brown noise; Sweep takes a start frequency, end frequency, duration, linear or logarithmic scale, and once / loop / ping-pong repeat. Burst mode gates the signal with adjustable on and off times. Sequence: build a list of tone steps, each with its own settings and duration; add, edit, reorder and delete steps, then play the sequence once or looped. Presets: four factory presets (1 kHz reference, full-range sweep, pink noise, stereo check) plus any configuration the user saves. Presets are stored locally on the device only. Settings: default waveform, a maximum-amplitude safety limit, and an option to keep the screen awake during playback. Note for the reviewer: the app deliberately produces continuous full-level test tones, including very low and very high frequencies. Please start at a low system volume and avoid headphones at high levels.