Tone Generator: Audio Sound Hz

Tone Generator: Audio Sound Hz

Generate Audio Frequency Waves

2.6K ratings
234 reviews
Free
With Ads

Details

  • Released
  • Updated
  • March 2, 2017
  • September 8, 2026

Features

Tone Generator: Audio Sound Hz screenshot #1 for iPhone
Tone Generator: Audio Sound Hz screenshot #2 for iPhone
Tone Generator: Audio Sound Hz screenshot #3 for iPhone
Tone Generator: Audio Sound Hz screenshot #4 for iPhone
Tone Generator: Audio Sound Hz screenshot #5 for iPhone
Tone Generator: Audio Sound Hz screenshot #6 for iPhone
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About

Create pure sine wave audio tones across a wide frequency range. This tool is ideal for tuning instruments, conducting hearing tests, performing science experiments, and testing audio equipment. Easily adjust frequencies and volume, with support for AirPlay devices.

Generate sine wave tones
Frequency range 20Hz - 22,000Hz
Instrument tuning
Hearing tests
Science experiments
Audio equipment testing
AirPlay support
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What users say

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What's New in Tone Generator

5.1.3

September 8, 2026

- Sliders now scale to whole numbers. Use the manual input dialog or -/+ buttons for fine tuning and fractional tones. - Larger play button and layout improvements make controls easier to tap on smaller screens. - New Reset Audio Settings restores volume, balance and pitch to their defaults. - Balance and pitch settings improved to better indicate what they're doing. - Improved descriptions for Reduce Interruptions and Continue Playback on Disconnect. - Various other bug fixes and improvements.

More

User reviews

First o.k., after updates only modulated signals

First after loading the app did what it should. But now after updates the signals of higher frequencies are still modulated and not pure. Therefore this app is not usable.

Fire update

The update made the app perfect

Response from developer

Thanks for your support all along. We will keep working to provide a good user experience.

I

Super application, je l’utilise presque tous les jours

Response from developer

Thank you for your encouraging words and 5-star rating!

Very useful tool

Very useful tooi. I am a radio ham and can use it to test audio filters in my equipment.it also shows how my own hearing has changed with age.

Good sine wave tool

Good simple tone oscillator, can double as a tuning source for musical instruments. A4 = 440. Presets can be created for stringed instruments.

Developer apps

User experience

🐞

Reported Bugs

3 issues

Sound cuts out when changing frequency

Bug

No sound output on some devices

Bug

Ads block access to controls

Bug

Requested Features

5 requests

Add frequency sweep/sweep function

Feature

Allow manual frequency input

Feature

Provide volume/amplitude display

Feature

Implement more precise frequency control

Feature

Add timer/sleep function

Feature

FAQ

What does the Tone Generator app do?

This app generates pure sine wave audio tones at frequencies ranging from 20Hz to 22,000Hz. It's designed for various applications like tuning instruments, conducting hearing tests, performing science experiments, and testing audio equipment.

What are the main uses for this tone generator?

Key uses include performing hearing tests to determine the lowest and highest frequencies you can hear, tuning musical instruments like guitars to specific frequencies (e.g., 440 Hz for Low E), conducting science experiments such as finding the resonant frequency of a wine glass, and testing audio systems like subwoofers.

How do I control the audio frequency and volume?

You can adjust the audio frequency by dragging a slider or tapping the plus/minus buttons. The device's volume can be controlled using an on-screen volume slider. Audio playback can be toggled on and off with a Play/Pause button.

Is this app compatible with AirPlay devices?

Yes, the app allows you to specify playing audio to any AirPlay supported device. This extends its utility for testing audio setups or for listening to generated tones on external speakers.

Is the Tone Generator app free to use?

The app is free to use and is supported by advertisements. There are no in-app purchases mentioned, indicating a straightforward ad-supported model.