Actual version: 1.5.1
I've developed a free and simple to use audio signal generator named AudioSigGen, available at the Apple App Store. This app should support audio, sound and acoustic engineers by providing sine wave tones in the audioband. As a sound engineer you often need some testtones and most of them are sine wave tones. One field of application could be finding the acoustic resonance of the stage before the soundcheck, or testing loudspeakers and soundsystems.
Direct link to the App Store
News:
November 2015:
Dear AudioSigGen users
6 years ago I started with the development of this app, I enjoyed working on this and it was great fun! Also I appreciated feedback from the users, I added a few features based on this. It was always a leisure activity for me, I didn't earn money (even I tried with iAd and Google banners, and there has been the developer fee to pay...).
Time is moving and I came to the conclusion to terminate my work on this project. Therefore I'll quit my developer account at Apple and AudioSigGen will be removed from the store in a couple of weeks.
Thanks for using my app!
If you discover problems with hidden sliders on iOS 8, please update to iOS 9, then sliders are back (all with the latest AudioSigGen release 1.5.1).
6. Jan 2012:
Improvements of this version:
- Via the button "Wavelength", the frequency can also be set by value the wavelength.
- Since the main screen is now a bit overloaded with buttons, you can also set the simple interface mode on.
- The iAd stuff is kicked out, so the app will be available also for version 3.0 soon (version in review).
- BTW: To use with Bluetooth, this works the same way as Airplay.
26. July 2011: AudioSigGen works with AirPlay:
- Connect your iPhone to the AirPlay speaker.
- Switch to the iPod app, click on the AirPlay button to switch the output to the AirPlay speaker.
- Close the iPod app, open AudioSigGen, then the AirPlay output will be used for AudioSigGen as well.
15. July 2011: Small changes:
- Adjustable settings for Glits: Frequency, time frame duration, sequence
- iAds: A note to this: AudioSigGen is freeware and will be freeware in future as well. However there are some expenses (Apple license fee) and the development takes time. This is why there are two iAd banners now in the Test Sounds and in the Baby Fan tab.
14. Juni 2011: Now the app makes some noise.
Improvements of this version:
- White and pink noise, stereo and mono.
- Glits (see the manual page for further details)
- Same output interface as in the main tab (L/R ON and Inverted)
27. March 2011: AudioSigGen goes stereo!
Improvements of this version:
- Left channel and right channel can be turned ON and OFF separately. Also for both, the output can be inverted. This can be very useful for phase check of a audio system.
- A new tab for the acoustic design of a loudspeaker box. This includes a Bass Vent Calculator. You can calculate the perfect match of the bass vent to a box size and a desired tuning frequency.
30. November 2010: After a some evaluation, there is a update now with only few changes - maybe I will include more features in the future versions ...
Improvements of this version:
- Now the values for the bursts and the multitones are adjustable, accessible by a settings button on the right top of the screen.
- Since I'm daddy now, I had to made a special feature, means a hair dryer sound in a endless loop... Parents may know the trick with the hair dryer - but we don't want to waste energy just for sounding, so you can use this app instead for a fan...
20. April 2010: New verion of the app (V1.1) and a new websites. Like the new version of the app is tabbar based, further features will be easyer to implement. There will be a "settings" section, where you can adjust the values for bursts, mutli tones, ... and there will be some new features. Stay updated!
Improvements of this version:
- Turning the Generator ON/OFF, there will be a fadeout/fadein for the time of a half periode. So the "klicks", witch may be appeared when the generator stops, are eliminated.
- Now you can burst the signal from the generator.
- You can use mulit tones.
22. December 2009: The app (V1.0) is now in the App Store!
With this app you can:
- generate a sine waveform with frequencies from 10 Hz to 20 kHz.
- change the frequency with two sliders. One with normal resolution, the other with fine resolution for exact adjusting of the value.
- both frequency sliders are logarithmicly resolved.
- the desired value can also be prompted by a numberpad, accessed via the textfield.
- bursts for the actual frequency.
- Multi tones for the actual frequency.
- The ON/OFF and Burst buttons uses a fast fade in / out, so the "klicks" by turning off the generator at full amplitude of sine will be disappeared.
- the output can be switched from ON to OFF by tapping on the button. The level of the output can be adjusted by a slider.
- All the buttons and sliders are well sized, so you can use it comfortably...
The great tab bar icons are made by:
glyphish