What frequency range does the tone generator support?
This tone generator accepts exact frequencies from 20 Hz through 20000 Hz, and the note controls stay inside that same audible range.
Play F#5 as a steady reference tone
Octave: 5
Note: F#
Generator
Gain: 0 dB
Need a quick reference pitch?
Use the Tone Generator app or extension for steady pitches during tuning, rehearsal, ear training, and sound checks when you want the note or exact Hz ready right away.
Common questions
How do note and octave mode work here?
The note control picks one chromatic note from C through B, and the octave control chooses the register from 1 through 8. Together they calculate the reference frequency automatically using standard equal-tempered tuning with A4 at 440 Hz.
Can I enter an exact Hz value manually?
Yes. Click the frequency readout, type the number you want, and set it directly. This is useful when you want repeatable sound-check or ear-training targets instead of note names.
Does the tone generator stay on my device?
Yes. The tone is generated locally with your device audio engine, so playback starts there without a server-side audio step.
Why start here
F#5 is ready the moment this preset opens, which makes it easy to tune by ear, match a starting note, or give a rehearsal group one clear pitch to center on.
How the controls stay flexible
This preset opens in note mode, so you can keep F#5 steady, move one chromatic step at a time with the note slider, change octaves, or jump into exact Hz mode when the number matters more than the note name.
When a nearby note helps
If F#5 is close but not quite the reference you need, use the nearby preset links to move by one step without losing the quick-start flow.
Nearby presets
F5 Tone Generator
Tone generator preset for F5 at 698.456 Hz with note, octave, exact Hz, and gain control.
698.456 Hz
G5 Tone Generator
Tone generator preset for G5 at 783.991 Hz with note, octave, exact Hz, and gain control.
783.991 Hz
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Tone Generator
Steady reference tone generator with note and octave control, exact Hz entry from 20 to 20000, local sine-wave playback, and quick preset starts for common references.