Audio Function Generator PRO

Audio Function Generator PRO

Frequency and Signal Generator

7.1.1for iPhone, iPad and more
184 Ratings
Thomas Gruber
22.6 MB
Jul 15, 2014
Update Date
Age Rating
Age Rating
Apps in this category do not contain restricted content.
Apps in this category may contain mild or occasional cartoon, fantasy or real-life violence, as well as occasional or mild adult, sexually suggestive or horrifying content and may not be suitable for children under 9 years of age.
Apps in this category may contain occasional mild indecent language, frequent or intense cartoon or real-life violence, minor or occasional adult or sexually suggestive material, and simulated gambling, and may be for children under 12 years of age.
You must be at least 17 years old to access this App.
Apps in this category may contain frequent and intense offensive language; Frequent and intense cartoon, fantasy or realistic violence: frequent and intense adult, scary and sexually suggestive subjects: as well as sexual content, nudity, tobacco, alcohol and drugs, may not be suitable for children under 17 years of age.
Audio Function Generator PRO Screenshots
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About Audio Function Generator PRO

This is the highly recommended and praised Function Generator App - an amazingly great and powerful tone generator. Enriched with a vast amount of features yet it is extremely intuitive and designed for simplicity.

Get to know this great App now! It is very well maintained and has received considerable upgrades over the past years.

So, … what can you do with this App?

• PLAY TEST TONES Sine, Rectangular, Triangular and Sawtooth.

• PLAY FREQUENCY SWEEP TEST TONES in both directions (minimum to maximum frequency and maximum to minimum frequency).

• PLAY VOLUME SWEEPS (from minimum to maximum volume).

• Try the SWEEP REPEAT / WOBBLE function.



• Or create your own CUSTOM PRESETS!

• And SAVE an endless amount of CONFIGURATIONS (Frequency, Sweep, Noise) for later quick access and direct playback function.

• Even play back different kinds of NOISE – White, Pink, Violet, Grey, Brown, Blue is also supported.

The Function Generator is AMAZINGLY INTUITIVE and SIMPLE!

=> Extending The Frequency Range
=> Extending The Sweep Times
=> Changing Min/Max Slider Frequency Ranges
=> Changing Max Sweep Time Slider Range
=> Changing Signal Amplitude
=> Enabling Of The Sweep Repeat / Wobble Function
=> Frequency Slider Setting to Linear or Logarithmic
=> Left/Right Channel Individual Selection
=> Permanently Saving Custom Presets
=> Saving Of Endless Number Of Audio Configurations
=> Phase Out Setting (custom phase shift of the generated signal)
=> BPM (Beats per Minute) Feature
=> Dual Function Generator
=> MultiTone Generator (playback of up to eight individual tones)
=> Background Theme Selection (Light/Dark)

Check out the new Tutorial page:
Show More

What's New in the Latest Version 7.1.1

Last updated on Mar 22, 2023
Old Versions
Small UI fix (sweep tab)
Show More
Version History
Mar 22, 2023
Small UI fix (sweep tab)
Mar 14, 2023
Support for controlling audio (Play/Pause) from the Control Center and iOS lock screen is now available again in an improved form.

Please note: to use this feature, the "Audio can mix with external sources" setting must be disabled.
Nov 2, 2022
bugfixes and improvements
Sep 15, 2022
Frequency Sweep
• Added new sweep option. You can now choose between fixed and variable frequency sweeps. A custom sweep step size (Hz) and a custom sweep step duration (s) can be freely selected. This gives you a whole new way to customize your frequency sweeps!

• Added menu to save and load sequences
• Added option to give a sequence a custom name and to rename it
• Fixing clicks in sequence play when going from one part to the other

• Fixed R+L signals going out of phase
Jul 5, 2022
MultiTone bugfix: correctly loading the saved waveforms after moving to tab, App restart or loading from previously saved configuration
May 14, 2022
• Fixing distortions when changing frequency during playback
• Fixing an issue with the phase value not being applied when restarting or when changing tabs

Music Notes
• added play/pause button to the music notes view
Jan 21, 2022
• Burst Generator: extensions and design changes. Now supporting shaped bursts and sine bursts
• MultiTone: added Repeat One and Repeat All for the Sequence Play
Nov 27, 2021
Smaller fixes and improvements
Nov 3, 2021
Support for iPad mini (6. Generation)
Oct 5, 2021
fixing an issue with storing of new preset values
Oct 3, 2021
- update for iPad Mini 6th gen
- several usability optimisations and improvements
Sep 29, 2021
fixing an issue with frequency input range checks
Sep 26, 2021
• update for iOS 15
• fix for volume change events not working with iOS 15
• optimisations for the preset settings popover (first Tab + MultiTone)
• smaller fixes and improvements all over the App
Aug 12, 2021
• added fine-tuning option to the musical notes section (option to select A4 = 432Hz, 434Hz, 436Hz, 438Hz, 440Hz, 442Hz, 444Hz, 446Hz)
• added home screen quick actions (touch and hold the App icon)
May 28, 2021
volume popover improvements
May 23, 2021
Apple Watch App bugfixes
Apr 21, 2021
• Re-designed UI: more space, larger controls, additional tools
• Save/Load custom configurations: now it's easy to save and load complete configurations. Just open the new popup menu via the sidebar (top right button)
• New popover for fine-tuning frequency and amplitude
• The repeat button in the Sweep tab now has 3 functions: off, repeat, siren-mode
• Added sweep time counter to the Main View

• New Fine-tune popover for fine-tuning frequency and amplitude
• New system volume popover

Apple Watch App
• added means to change the channel (important when playing back over Bluetooth)
• added means to change the frequency via the digital crown
• bugfixes of the audio engine (fixing interferences during playback)
• fixed crash when resuming from background
Mar 1, 2021
• added support for the Apple Watch. Supports running without iOS App installation
• fixed memory leak in the Sweep repeat implementation
• repeat button in the Sweep tab now has 3 functions: off, repeat, siren-mode
• improved Dual Tone Generator UI
• refactoring Master Volume control
Dec 15, 2020
- further improvements for Apple Silicon
Dec 12, 2020
- improved support for Apple Silicon
Oct 22, 2020
Ω bugfixes and improvements
Oct 7, 2020
- Updates for iOS 14
- New Notes popover. Now you can make notes for each page individually
- Several optimizations and improvements under the hood to make the App more future proof for upcoming iOS versions, screen size changes, etc.
Jun 14, 2020
Added settings option to allow mixing of audio with external sources. Please Note: for streaming audio over AirPlay 2, this option must be disabled.
Jun 10, 2020
Dear Users! The new update contains fantastic new features. Enjoy!

• Support for AirPlay 2 with multi-room.
• Support controlling background audio from the Control Center and iOS Lock screen.
• New Burst Generator (previously Click Track generator). Pause between the bursts and burst length (1-5 sine waves per burst) can be configured.
• Bugfixes:
- Sweep counter resets to the exact start value when completed
- ClickTrack (Burst) intervals remains constant even when the App is in background mode
- Timed playback fix in the Dual Tone Generator
May 10, 2020
- New “AUTO” button in the oscilloscope view.
- Improved Click Track Generator. Now each click is a single sine wave with a duration of 1ms (1kHz signal). The pause between the clicks can be configured (up to 10 seconds). This tool is ideal for sync testing in a multi-room audio setup.
- Fixed oscilloscope issue when frequency slider is set to logarithmic.
- Fixed a phase issue in the Dual Function Generator. When changing frequencies, the phase went out of sync in some cases.

Audio Function Generator PRO Price


Audio Function Generator PRO FAQ

Audio Function Generator PRO is available in regions other than the following restricted countries:
Audio Function Generator PRO supports English, German
Click here to learn how to download Audio Function Generator PRO in restricted country or region.
Check the following list to see the minimum requirements of Audio Function Generator PRO.
Requires iOS 12.0 or later.
Requires iPadOS 12.0 or later.
iPod touch
Requires iOS 12.0 or later.

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