# AudioFrequencySignalGenerator — Binaural frequencies generator

> Binaural frequency signal generator with multiple waveforms and recording capabilities. (iPhone/iPad app by Franck Mallouk.)

- Source: https://appshunter.io/ios/app/audiofrequencysignalgenerator/id1436541708 (this page in markdown: same URL + `.md`)
- Developer: [Franck Mallouk](https://appshunter.io/developer/325166245)
- Category: Utilities, Music
- Price: Free with in-app purchases
- Rating: 4.18/5 from 11 App Store ratings · 6 written reviews indexed
- Age rating: 4+
- Requires: iOS 10.0 · 115 MB
- Languages: English
- Released: 2018-09-25
- Data updated: 2026-06-10
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/audiofrequencysignalgenerator/id1436541708/reviews.md

## What is AudioFrequencySignalGenerator?

Explore binaural frequencies, record your audio sessions

Here are some possible applications :

- Calibration and testing of sound equipment or loudspeakers.
- Acoustic testing and equalization.
- Hearing tests (preferably under medical supervision).
- Binaural beats therapy (preferably under medical supervision. https://blog.mindvalley.com/how-to-use-binaural-beats/ ).
- Creation of audio samples.
- Demonstration of audio principles to students.

And many more.

Here is a comprehensive description of the app :

Binaural frequency signal generator.

0-20 khz range (can be expanded up to 40 khz. You can adjust range via the "Min Max" button, or via the in-app settings : Main menu > Settings > Change min / max freq.),

5 waveform types : Sine, Square, Triangle, Sawtooth, Noise.

The current waveform is displayed on an oscilloscope.

Two adjustable frequencies : Left, right.

For each side, you have 4 knobs that allow you to tweak the related frequency : - + 1 Hz, - + 10 Hz, - + 100 Hz, - + 1000 Hz (adjustable amounts).

To increase a frequency via a given knob, you just have to swipe up or right once from the related knob, then the frequency value steadily increases (adjustable wait time between each change via the left slider) until you release your finger.

To decrease a frequency, it's the same principle except you swipe down or left.

You can also adjust a frequency by clicking on the value.

You can link left and right frequency changes (via the "link" button, located between the left and right frequency values).

The last chosen left and right frequencies, waveform, wait time and volume are memorized in the device,

You can save your fav frequencies : To add the current set of frequencies and the current waveform to the favs, click on the "heart" button on the right of the screen.

The favs can be selected from the list on the bottom right, or from the main menu ("Favorite frequencies").

You can also export / import your favorite sets of frequencies and waveforms : From the main menu, you have "Export favorite frequencies" and "Import favorite frequencies" options. The exported file is a regular sqlite3 database. So, for instance, you can use a sqlite database browser to edit your favorite frequencies list before importing it (Main menu > Import favorite frequencies).

To record the audio output, click on Record button at the bottom of the screen. The button then becomes a Stop button, and a timer starts.

Once the Stop button is clicked, a file browser opens, so that you can save the resulting audio file (wav format) to your device.

Click the switch button at the bottom of the screen to activate / mute sound.

You can use this switch while recording your session.

A main volume slider is displayed on the right of the screen.

You also have gain sliders.

Random buttons : "Random Freq." (random frequencies), "Random" (random waveform type and frequencies), "Random Fav." (random waveform type and frequencies amongst favorites).

Audio Sweep : 

You can trigger binaural sweep effects (via the "Sweep" button).

You can adjust the start and end frequencies (for both left and right channels), as well as the amount of HZ's between each frequency change.

Loop and Mirroring options are available.

This effect uses time interval (slider on the left) to determine the wait time between each frequency change.

You can manually change the frequencies during the sweep.

You can also stop a sweep at any time, by clicking again on the "Sweep" button (which is green as long as the sweep effect is running), or by resetting audio (Main menu > Reset audio).

Note : The "linked frequencies" functionality is bypassed each time a sweep effect is running.

Keyboards :

- Simple tap on the "Keyboard" button : Polyphonic keyboard.

- Long tap on the "Keyboard" button : Monophonic keyboard.

You can control the keyboards music notes gain via the "Keyboard gain" knob.

On a last note, please be careful with the volume control.

Enjoy !

## Key features

- Adjustable frequency range (0-20 kHz, expandable to 40 kHz)
- Five waveform types: Sine, Square, Triangle, Sawtooth, Noise
- Dual adjustable frequencies for left and right channels
- Precise frequency adjustment with knobs and direct value input
- Save and import favorite frequency sets
- Record and export audio sessions in WAV format
- Randomize frequencies and waveforms

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Remove ads | $0.99 | one-time |


## Recent user reviews (6 of 6)

All indexed reviews: https://appshunter.io/ios/app/audiofrequencysignalgenerator/id1436541708/reviews.md

### 3/5 — Won’t restore

*2024-10-23, version 2.62*

Can’t remove ads and restore does not work, is there an update please.thanks

### 1/5 — a total mess of programming ‘ F ‘

*2024-05-03*

The ‘precision’ dial knobs spin like they’re drunk!! The LEFT channel dial affects BOTH CHANNELS!! The RIGHT channel dial affects BOTH CHANNELS!! virtually no syntax for sequence commands!! The delay setting only goes up to ONE second! what if i need FIVE seconds??!!
NOPE!!  nothing but toilet TRASH!! with pathetic AD BANNERS!!!!!!

### 5/5 — Great app!

*2023-02-01*

I’m in contact with the developer and he will be working on an update. This is the only app I have found in the AppStore that not only generates binaural frequencies but records and exports them to open in other apps! Five Stars hands down! Great App and Great customer support!

### 5/5 — Brilliant App!

*2019-09-08*

So awesome

**Developer response:** Hi, thanks for your appreciation 🤗
Best Regards,
Oniric Forge

### 5/5 — Fantastic for binaural work

*2019-07-31, version 2.61.1*

Simple to use yet all the essentials are there. Excellent. Thanks for the effort in developing this.

### 3/5 — Please Allow Saving to Device

*2018-12-21*

Hi, I really want to love your app but was hoping to export any recordings directly into my phone via iCloud Drive / Files / Dropbox / Google Drive or whatever, as long as I can access it on my phone. Please add this feature as trying to find my exported files on a computer is very archaic and inconvenient, thank you!

**Developer response:** Hello,

Thanks again for your feedback,

V2.62 is out, with a very useful feature : Compatibility with Files iOS app.

Once version 2.62 or later is installed, the application then has its dedicated folder in the Files application.

This greatly facilitates access to files exported from the application, but also the import of files such as sqlite3 files (which are used by the app for storing favorite frequencies - On this subject, the main favs are stored in the file named afsg_sqlite3_db.sqlite), or in-app sequencer code files.

Best Regards.

## Frequently asked questions about AudioFrequencySignalGenerator

### What is AudioFrequencySignalGenerator used for?

AudioFrequencySignalGenerator is used for calibrating and testing sound equipment, acoustic analysis, hearing tests, binaural beats therapy, creating audio samples, and demonstrating audio principles.

### What waveforms can AudioFrequencySignalGenerator produce?

AudioFrequencySignalGenerator can produce five waveform types: Sine, Square, Triangle, Sawtooth, and Noise. The current waveform is displayed on an oscilloscope.

### Can I save and load my frequency settings in AudioFrequencySignalGenerator?

Yes, you can save your favorite frequencies and waveforms by clicking the 'heart' button. These saved sets can be selected from a list or imported/exported as a sqlite3 database.

### Does AudioFrequencySignalGenerator allow recording of audio output?

Yes, AudioFrequencySignalGenerator has a 'Record' button that allows you to record the audio output. The recorded session can be saved as a WAV file.

### What is the frequency range of AudioFrequencySignalGenerator?

The app supports a frequency range from 0 to 20 kHz, which can be expanded up to 40 kHz. You can adjust the minimum and maximum frequencies in the app's settings.

### How does AudioFrequencySignalGenerator handle ads?

AudioFrequencySignalGenerator is ad-free, meaning it does not contain any advertisements. This provides an uninterrupted user experience.

### What devices is AudioFrequencySignalGenerator compatible with?

AudioFrequencySignalGenerator is available for iPhone, iPad, and iPod devices. It is suitable for users who need audio signal generation on their Apple mobile devices.

### How often is AudioFrequencySignalGenerator updated?

The latest version of AudioFrequencySignalGenerator is 2.62, which was last updated on July 23, 2020. This indicates the app has received updates since its release in 2018.

## Version history (last 5 releases)

### 2.62 — 2020-07-23

Bug fixes.
In particular :
- Files that can be saved from the app (audio files, favorite frequencies sqlite3 files, in-app sequencer code files) are now showing in the Files app ("Audio Frequency Signal Generator" folder).
- The in-app sequencer could not be used any more due to a bug which prevented the editing of the code. It is resolved.

The in-app sequencer (you can access it by clicking the "Sequencer" button) lets you easily program sequences of commands related to frequencies and audio output within your Audio Frequency Signal Generator app.

More infos at https://www.oniricforge.com/afsgl/

### 2.61.9 — 2020-07-07

- Smaller app size.
- New background images added (you can change background image via Main menu > Settings > Change main texture).
- Bug fix : Background images display.

### 2.61.8 — 2020-07-02

- UI adjustments : Main menu items now have icons.
- Bug fixes.

### 2.61.7 — 2019-12-03

The application is now able to play audio in background.

### 2.61.6 — 2019-11-20

- New feature : Now the app can set left / right frequencies and waveform via push notifications.
- User interface adjustments.

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## More apps by Franck Mallouk

- [Tiny Labyrinth Adventure](https://appshunter.io/ios/app/tiny-labyrinth-adventure/id1080331469)

All apps by Franck Mallouk: https://appshunter.io/developer/325166245

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-10.*