Soundbeam 4+

Horizon Video Technologies

    • 4.5 • 67 Ratings
    • $0.99

iPhone Screenshots


Soundbeam helps you see what everyday sounds look like and visualizes sounds you can't even hear!

Plug in your electric guitar, a mic or any other (hi-Z) device to your mini-jack input and get accurate measurements. You can always use the built-in mic.

We paired stylish controls and an old-school interface with high precision signal processing algorithms, creating a new way to experience sound.

Soundbeam is an real-time audio analyzer (RTA) that processes the input of your microphone displaying it like a classic oscilloscope. It also features a spectral visualization of the audio using high resolution fourier transform (FFT) for accurate measurements.

Get a dose of nostalgia with Soundbeam now!

Key Features:

* Spectrum and waveform views
* Recording functionality
* Gesture support for frequency range and intensity levels adjustment
* Visualization controls
* ...and one more thing! Plug in your headset or guitar and watch what happens!


* While in "spectrum mode", pinch the monitor vertically or horizontally to change frequency range and intensity levels respectively. You can also pan the soundwave with one finger.

* In "waveform mode" pinch the screen vertically to adjust intensity levels.

* Double tap on the screen to reset view.

* Tap & slide the intensity knob horizontally to adjust it.

What’s New

Version 1.9

* Fixes issue where the beam will appear choppy in iOS 16.
* Performance improvements and optimizations.

Ratings and Reviews

4.5 out of 5
67 Ratings

67 Ratings

BunzO Mystery ,

Oooooo SCORE!!!!

Hey, onethat works!! I can zoom on a pip and monitor just it. My wife and I were wondering what the huge signal at 15Khz was. I covered the mic and it went away, so we started turning things off... Not the fluorescent light... Ahh it went away when the TV was turned off. Like having our own private fox hunt. I have video of me measuring my brain activity!!! I put the mic to my forhead an the sugnal FLATLINED!!! My wife bout fell out of her chair laughing!!
Can you make it save and record? Love the imagecapture feature too!

Sleek Sparrow ,

Sound design, the best $.99 cents you’ll ever spend

100% great! I love this application I use it to monitor modulation characteristics on my Ham radio with the external microphone input. The graphics are really good kinda hard to tell your not looking at a dedicated scope, in spectrum mode you can clearly see band pass filter roll off. I would like to be able to vary the time base in scope mode perhaps in another version or update you do have the option of adjusting the vertical gain in scope mode and selecting linear or logarithmic display in spectral mode. Truly a five star development 73 de KF6FOK

V'rah Chobahmuh ,

A joy to use

It works!
Useful tool to have, very modest price.

The user interface is real eye candy - in the same vein as the first AAA apps designed for iPhone.

Really happy with this. Thanks for creating it. I don’t see an approximate dB level when in waveform mode. That would nice.

App Privacy

The developer, Horizon Video Technologies, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy.

Data Not Collected

The developer does not collect any data from this app.

Privacy practices may vary, for example, based on the features you use or your age. Learn More


  • Family Sharing

    Up to six family members can use this app with Family Sharing enabled.

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