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By Masayuki Akamatsu

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Oscillator is a simple and rough audio generator application which has the following functions. You can use it as a test tone and play it as a strange musical instrument.

- Four waveforms. (i.e. sine wave, square wave, saw wave and white noise.)
- Exponential Frequency control using the slider.
- Frequency numeric input using the software keyboard.
- Equal distance panning control using the slider.
- dB style amplitude control using the slider.
- Sound output on/off button.
- All sliders and buttons are multi-touch controlled.

Please note the limitations below before you purchase/use this application.

- The frequency control is not effective with the white noise oscillator.
- The panning control is not effective with an iPhone internal speaker because it is monophonic. Use headphones or stereo speakers.
- The audio output might be interrupted on a keyboard input, a view change and so on.
- The accuracy of the audio output is not very high but it is reasonable.

What's New in Version 1.1.1

Upside-down portrait mode was added for efficient use of speaker.

iPhone Screenshot

iPhone Screenshot 1
iPhone Screenshot 2
iPhone Screenshot 3

Customer Reviews

Simple but useful

You have 3 waveforms and noise. Frequency, pan, and volume are the parameters. The slider range for frequency can be changed to virtually anything. I set a one octave range between 300hz and 600hz so I could have higher sensitivity. I later changed the max to 6000hz and the iPhone played it fine.

One trick I learned is changing waveforms quickly and repeatedly to get a nice trigger effect.

Even though it doesn't have cutoff, you can manipulate it physically by partially and completely covering the speaker on the iPhone.

Doesn't work in sleep mode!!

This app is great except the sound shuts off when the iPhone goes to sleep!!!! The iPhone's screen shuts off after a few minutes which turn off the sound!!!

Great App

If you're looking for a frequency generator this is it. And for the other reviewers, what do you expect an ocillator to do! This app does everything it says and you can edit the frequency range too! Good buy!

View In iTunes
  • $0.99
  • Category: Music
  • Updated:
  • Version: 1.1.1
  • Size: 0.1 MB
  • Languages: English, Japanese
  • Seller:

Compatibility: Requires iOS 2.1 or later. Compatible with iPhone, iPad, and iPod touch.

Customer Ratings

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