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iOS 3 can’t install from Safari. You can still download the IPA file, but you’re on your own after that.
Soundbeam
  • Price
    $0.99
  • CategoryMusic
  • First releasedJanuary 19, 2012
  • Versions1 archived
  • Installable1 of 1
  • AvailabilityStill on the App Store
  • SellerEvil Window Dog

RequirementsCompatible with iPhone and iPod touch. Requires iOS 4.0 or later.

Customer Ratings

As of December 13, 2018
     
43 Ratings

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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!

Controls:

* 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.

To install apps directly onto this device, it must be jailbroken with AppSync installed.
1.3
Requires iOS 4.2+
April 25, 2012
4.4 MB Install Download

Chart History

Top Paid · Music View chart ›
Peaked at #178 (August 25, 2021) · 1 archived capture · Aug 2021

Ratings Over Time

sampled from 5 archived captures
DateVersionRatingRatingsPrice
January 24, 2012 — — — Free
October 31, 2013 — — 75 $0.99
November 29, 2015 1.5 ★ 4.3 41 $0.99
December 10, 2018 — ★ 4.3 43 $0.99

From archived App Store listing data, captured by the Wayback Machine.

Archived Reviews

8 of 15
Super handy tool
     
by gfbhyt · January 19, 2026

Other than the processor noise that seems to sneak in at 7.7 and 15k4 hz, absolutely perfect. ( ok, there’s a ton more things it could do but sometimes this is all you need!)

Sound design, the best $.99 cents you’ll ever spend
     
by Sleek Sparrow · July 18, 2022

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

Awesome little oscilloscope!
     
by wilmot13 · November 25, 2024

This is a delightful app that functions as an oscilloscope for audio frequencies. I used an audio frequency generator (Function Generator Pro) on one device and plugged it into my iPhone via an audio cable and was able to view sine, square and triangle waveforms as if I were using an actual physical oscilloscope. I also built an electronic circuit to generate a sine wave and fed it into my iPhone via a Scarlett audio interface and that also worked wonderfully, showing the sine wave and frequency! The iPhone has a high-pass filter that cuts off anything over 10KHz, but for my projects that frequency was plenty high enough. Running an audio app and Soundbeam on my iPhone simultaneously showed me the waveform and the FFT-style spectrum analysis—the audio came out the speaker and back in via the microphone. What a great and inexpensive way to help understand how sound waves work! Enhancement request: let me zoom in horizontally while in waveform mode, and display the time scale.

ONE OF A KIND
     
by NoUserErrorHere! · October 29, 2016

Absolutely LOVE Soundbeam and especially appreciate the ability to record and save audio + video. My two requests are: enable longer recordings (IAP for this function would be welcome and purchased immediately) and (far less important) the ability to adjust background color from the default aqua-green. Regardless Soundbeam is awesome as-is.

A joy to use
     
by V'rah Chobahmuh · May 30, 2019

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.

I think I am one of the first people to download this app when it first came out years ago!
     
by EXTRA-ECCLESIAM-NULLA-SALUS · February 1, 2025

Very powerful and robust little app! A fascinating, teaching aid for both technical and non-Technical applications! Extremely interesting!!!

Good as far as it goes.
     
by Badger611 · November 19, 2013

Doesn't sample slow enough for some applications. I need to display several seconds of data on the screen.

Great and fun app
     
by Michael18284 · November 7, 2014

This is really cool if you're an engineer or geek. Well worth $.99.. I'm sure the iPhone's mic has a certain frequency range, but does it really cutoff at 100hz? Would be nice if it could go lower, preferably down to 20 or so hz, which I'm sure the mic isn't capable of. Maybe with an external mic the scale could shift down to 10hz? Please make it as low as possible!

Period reviews recovered from Apple's customer-review feeds via the Wayback Machine.