Not recently updated — last update was on 2011-11-08.
This app may no longer be actively maintained.
Signal Generator by RadonSoft turns your Android device into a compact audio signal lab, delivering white noise, pink noise, and sine waves with real-time analysis features. It has a long market presence of over 16 years, with over 100,000+ downloads and an average rating of 3.59 from 1,789 users.
Pros & Cons
Generates white noise, pink noise, and sine waves in a compact package.
Includes Spectral View and Real-Time Analysis for on-device signal assessment.
Extremely small APK size (~30 KB) and free to use.
Less emphasis on broad audio keywords (sound, frequency, tone) compared to competitors.
Description could better highlight additional waveform types beyond basic noise and sine waves.
About Signal Generator
Signal Generator is a tools app developed by RadonSoft.
How many times has Signal Generator been downloaded?
Signal Generator has been downloaded 380 thousand times. In the last 30 days, the app was downloaded 0 times.
What is the rating of Signal Generator?
Signal Generator is rated 3.71 out of 5 stars, based on 1.8 thousand ratings.
Is Signal Generator free?
Signal Generator is free to download. The APK download size is 29.53 kB. The latest version available is 1.21. The last update was on November 8, 2011.
What are the requirements for Signal Generator?
Signal Generator requires Android 1.5+ or higher. The app has a content rating of Everyone. The app has been available on Google Play before 2010.
Description
Easy to use audio signal generator that creates white- and pink noise as well as sine waves.
Test the bandwidth of your phone's speaker (or your ears...), create true uncorrelated noise.
Make sure to check out our Spectral View, RTA and other apps in the Market.
Bugs and comments to support@radonsoft.net
Recent changes: - Sampling frequency changed to 44.1 kHz for better device compatibility and to avoid alias on certain devices due to bad resampling in the firmware
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Works for me... Pink noise beats crashing waves any night. Small app for a nights sleep...priceless.
★★★★☆A Google User· Jul 24, 2015
Great, free signal generator. Very limited functionality but as a simple single tone generator combined with white and pink noise for audio system testing - it's great value for what you pay for it - ie nothing.
★★★★★A Google User· Nov 11, 2013
Great for quick tests. I ran some very quick oscilloscope tests, and it can provide a sine wave 20-20kHz, accurate to 2SF, the third SF is ±1 of the true value. Do not use this app when charging. If you do, there will be a rather lovely 50Hz signal overlaid on the output. At higher frequencies it's not an issue, but at lower frequencies the interference is very noticeable, and at an output ~50Hz produces a lovely beat frequency. Remember that your android device is not designed as a signal generator, therefore the output is not going to be as clean and perfect as a real signal generator. Different devices may produce different results. I recommend you test yours with an oscilloscope where possible.
★☆☆☆☆Gabor Alba· May 27, 2019
This app is a spyware, it is accessing your photos, files and your contacts!!!
★★☆☆☆A Google User· Feb 15, 2015
Poor low freq access range These graphs leave little wiggle room for low freq ones. Maybe only 1/10th of the slider scroll is dedicated here. Above 2khz, is okay. Below it, u have to type the desired freq, if u likt to play below 2khz,a lot, u will have a devil pf time tweaking as there is little scroll range dedicated here, go elsewhere
★★☆☆☆Lance Faure· Sep 4, 2019
Fair to poor. Very frustrating this app will turn your volume all the way up can blow speakers be careful. Also needs ability to run in the background.
★★☆☆☆A Google User· Jan 21, 2014
Be careful For some reason this app turns your phone media volume up to 100% regardless of setting and leaves it up after. I've been deafened a couple of times when I go to listen to music after.
Google Play Rankings for Signal Generator
This app is not ranked
Technologies used by Signal Generator
4 permissions
Subscribe to see full permission and library details
Trust & Safety: Requests read/write external storage, read phone state, and wake lock. No location or camera permissions detected; typical for audio tools.
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