Signal Generator app for iPhone and iPad

4.8 ( 928 ratings )

Utilities Music
Developer: CATEATER, LLC

0.99 USD

Current version: 2.3, last update: 4 years ago
First release : 17 Dec 2010
App size: 13.79 Mb

Turn your iPhone into an amazingly powerful signal generator and produce perfect sine, cosine, square, triangle or sawtooth waves. You can even generate white and pink noise with this versatile App.

This “must have” tool is perfect for any audio-related testing or calibration:
- Test your headphones or speakers
- Set up and calibrate your surround system
- Tune an instrument
- Test your hearing: What frequencies can you hear? (And not hear?)
- Or simply generate annoying noise to drive someone completely nuts ;-)

Features:
- Sine, cosine, square, triangle or sawtooth waves
- Pink or white noise
- Direct frequency input or dial wheel (sweep)
- Frequency range between 20 and 20000 Hz
- Current waveform is shown on your screen
- No samples - all signals are generated in real time
- Channel switch (left, right or both)
- It’s high-tech, multi-frequency fun at its best!

Pros and cons of Signal Generator app for iPhone and iPad

Signal Generator app good for

Im very happy with this app for ear training, its super simple and works great. Nice job to the devs

Awesome app... Needs a programmable sweep function and it would be perfect.

Some bad moments

While the app describes it can output 20hz-20Khz, it actually does more. We tried playing 12hz, and it worked nicely. We could, of course not hear it, but feeling it was pretty cool. Anyway, it does what it says, and is a 5/5.

Great Signal Generator. Does everything I needed. The UI is simple and intuitive. I only wish it had to ability to keep the iPhone from going to sleep while generating tones.

Just what I needed. The only feature request I have is up down arrows for the frequency so you can easily step through freqs without using the jog wheel. Maybe these could be tapable spots inside the jog wheel?

Frequency scrubbing no longer distorts. THANK YOU for fixing it. It makes such a big difference. Now I can use this to test audio setups at gigs, during prep or to train my ears. I hope you guys keep improving the app. The jog wheel could use refinement and so could the arrow buttons and numerical input section. Another great addition would be multi-tasking. Please keep up the good work and thank you guys.

Looked through many Signal Generator apps and this one had all I needed and all on one interface without being cluttered or costing too much. I have no complaints, it leaves me wanting almost nothing more.

Looks like it prevents phone from locking so it plays continuously. Excellent.

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Usually Signal Generator iOS app used & searched for

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