Tone Generator TG-01

Tone Generator TG-01 is a free iPhone app that lets you generate and explore sounds from 20 Hz to 20,000 Hz, adjustable in 1 Hz steps. It features three independent oscillators, each with its own frequency, volume, and stereo pan controls. Choose from four waveforms: sine, sawtooth, square, and triangle. Layer different frequencies, adjust sounds in real time, and experiment with how they interact. You can save frequency presets for each oscillator and set custom minimum and maximum frequency ranges. The app also includes an independent click signal with adjustable tempo from 30 to 300 BPM, beat subdivisions, and volume. Use TG-01 for audio experiments, frequency testing, sound design, or simply exploring unusual combinations of sounds. You can also experiment with frequencies such as 528 Hz and discover which sounds you personally enjoy. An online user guide is available directly from the app. Measure, test, layer, and play. How you use it is up to you.