Frequency Sound Generator

Frequency Sound Generator

100,000 - 500,000 downloads

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This application generates audio tones from 1 to 24000 Hz.
Abstract: real time audio generator, tone generator, sweep sounds, white noise, pink noise, infra-sounds, ultrasounds.

What can you do with this tool:

- Speaker tests.
- Sub-woofer tests.
- Audio amplifier tests.
- Equalizer fine tuning.
- Car audio tuning
- SPL competitions
- Music instrument tuning
- Frequency response analysis
- As a infra-sound or ultra-sound source
- Sub-woofer crossover tuning
- Loudspeaker breakup
- Taking a hearing test (test your friends and family).
- Testing your new headphones (can they output 20Hz as specify in the box?)
- Sound Wiki: The app teaches the user the use and names of the various sound ranges.
- Some users use it because of tinnitus. This app can help you finding the tinnitus frequency.
- As a noise mask (pink and white noise)


- Solid, double precision, real time, accurate, wave generator.
- 16bit PCM encoding (CD quality)
- Sampling rate at 44100 (CD quality) or 48000 Hz (automatic native DAC detection!)
- Tone generator
- Function generator (sine waves)
- Sweep tone generator
- Real time manual frequency increment or decrement (accurate, without pops and clicks)
- Sweep loops
- Time span selectable
- White noise generator
- Pink noise generator
- Save favorite tones and sweeps for future use
- Precise left/right channel volume control
- Possibility to invert one channel for cancellation effects.
- No ADS!
- No excessive PERMISSIONS !!
- PRO version option for the users that want to support the future development and maintenance of the app.

The KISS Principle (Keep It Simple Stupid):
My goal was to design and program a simple app that does the job, and not full off options that would introduce bugs and turn the app difficult to learn an use. Sometimes, less is more!

Under the wood
This is a very technical app, it has hundreds of hours of work, but all the complexity is hidden from the user interface.

- This app does not read all your contacts!
- In-app purchases: this permission allow users that want to support the future development and maintenance of this app to upgrade to PRO VERSION, paying a small fee, and without installing a new separate version. This process is the new trend in phone apps. This is a one time purchase only.

This app does not run in background yet.

Tags: generador de frecuencias, pcm tone generator, frequency generate, frequency generator, pcm gen freq, generate sweep tones repeat, generateur defrequence, generateur de frequence, generador de frecuencia, appgeneradorsonidos.

Recently changed in this version

Version 1.78
+ Add master volume control (feature asked by many users).
+ Add fine volume control. Android volume control is very coarse, with only 16 levels. The 1 level may be to high for users that use this app to meditate or with tinnitus. Now you can fine tune the lowest volume setting.

= Correct issue when the user is pro and there is no internet connection to check the licence.

This update in only possible thanks to the users that are supporting the development of this tool.

Comments and ratings for Frequency Sound Generator
  • (69 stars)

    by Rob Blanch on 08/08/2014

    Produced a weird jittery tone as well as the one I needed. No use at all.

  • (69 stars)

    by justin evans on 07/08/2014

    Pretty neat, I ran hearing frequency tests

  • (69 stars)

    by BC Cornwell on 05/08/2014


  • (69 stars)

    by Jesus Leon on 04/08/2014

    It was good until my dog died jk its awsome

  • (69 stars)

    by Jake Silva on 31/07/2014

    It could be annoying! But fun at the same time or at least know what the heck I am doing.

  • (69 stars)

    by Benton Stacy on 30/07/2014

    I did a science experiment about hearing and frequencies, and this is the app I used. Thank you for your app. Fun Fact! Did you know that if there is an infrasonic sound wave at 8-16 Hz, at 177 dB, it could control your breathing? At 189 dB, I can stop your breathing with that noise.

  • (69 stars)

    by D Dean Carroll on 30/07/2014

    Easy to use. Does what it is supposed to. Purest tones of any app that I've tried and the new "exponential fade-in fade-out" means I can hear throughout the range of frequencies.