Online Tone Generator

Audio Frequency Generator (20Hz – 20,000Hz)

Use this online tone generator to play any frequency from 20Hz up to 20,000Hz (20kHz).

You can adjust the waveform type, identify and locate musical notes across the frequency range (from A0 to B8), and access advanced features like the built-in sequencer.

⚠️ To protect your hearing and speakers, avoid high volume levels. Start low and gradually increase the volume.

How to Use the Tone Generator

Follow these steps to generate a tone at your desired frequency:

1. Set the frequency using the slider or numeric input field.
2. Select the waveform type used to generate the tone.
3. Click Play or press the spacebar to start playback.

You can adjust these settings in real time while the tone is playing.

Controls & Advanced Features

This frequency generator includes the following controls and features:

Frequency Slider & Input

Drag the frequency slider along the bar to set the output frequency. You can also enter the value manually or adjust it step by step (Hz) using the arrow keys.

Notes

You can play the tone of any musical note. Click on “Notes” and select the one you want. The corresponding frequency will be automatically assigned (from A0 to B8).

• Choose between Latin notation (Do, Re, Mi) or standard Western notation (C, D, E).

Frequency Presets

Quickly play low, mid, or high frequencies using preset shortcuts:

• 60 Hz, 250 Hz, 1000 Hz, 4000 Hz, 12000 Hz.

Ideal for quick audio tests.

Waveform Type

Choose the waveform used to generate the tone:

• Sine Wave: Produces a pure, clean, and smooth tone with no harmonics.
• Square Wave: Generates a bright, digital-style sound.
• Triangle Wave: Offers a balance between the smoothness of a sine wave and the brightness of a square wave.
• Sawtooth Wave: Creates a harsh sound with rich harmonic content.

Download Tone

Download a 15-second audio file (.wav) with your selected frequency and waveform.

Share Tone

Generate and copy a URL with your current settings (frequency and waveform) to share or revisit the exact configuration.

Sequencer

As an advanced feature, you can use the sequencer to play monophonic melodies directly within the tone generator.

💡 Tip: You can paste these instructions into any AI platform and ask it to convert popular melodies into this format.

Additional Uses

🎵 Musical applications:

• • Instrument tuning: generate a reference note (via the “Notes” button) to tune any instrument accurately.
  • Ear training: practice identifying and distinguishing different musical notes.

🏥 Health-related uses:

• • Basic hearing range self-check: test how high (or low) in frequency you can hear.
  • Support for tinnitus sound therapy: identify the frequencies where tinnitus occurs and work with sound masking techniques.
  • Use in cognitive stimulation therapies (research stage): potential benefits have been studied in neurodegenerative conditions (such as Alzheimer’s) using 40 Hz sessions with square or triangle waves, typically lasting 40–60 minutes.

This is not a substitute for professional medical diagnosis or treatment. If you experience hearing issues or tinnitus, consult a qualified specialist.