Function Generator app icon

Function Generator

keuwlsoft · com.keuwl.functiongenerator

5.0 out of 5 (1 rating) 1M+ downloads v1.2 1.7 MB Android 2.2+ PEGI 3 · Everyone

  • Signature matches the Google Play version Details

At a glance

Latest version
v1.2 (3)
Updated
Apr 1, 2016 (10 years ago)
APK size
1.7 MB
Requires
Android 2.2+ (API 8)
CPU support
Any (no native code)
Category
Music & Audio (app)
Listed since
Jun 12, 2014 (at least)
Website
keuwl.com/FunctionGenerator
Developer contact
[email protected]

About this APK

Function Generator is an app by keuwlsoft in the Music & Audio category, listed since at least June 2014. It has no native code, so it runs on any Android processor.

What's new in v1.2

Added settings (cogs button top left) - Frequency, Amplitude, Phase and Duty Resolution can now be changed. Settings also has a soft turn on/off option to avoid those annoying 'clicks' . Added a short user guide (i button top right). Plus a few more minor tweaks/fixes.

Description

From the listing uploaded by “apps”.

Dual channel function / waveform / signal generator for the speaker / headphone audio output. No Ads, No Permissions, No In App Purchasing, No Limited Features. Full Version. Output is 16 bit for each left and right channels and at 44.1kHz. Output will depend on your device hardware. Some device hardware may may filter out the DC bias and low frequency signals. At high frequencies, the waveforms will be distorted due to limited number of samples for each waveform (for example at 4.41kHz, a sine waveform will be approximated by only 10 points). Therefore this is for fun/educational use, for critical applications use a real calibrated function generator. Left and Right audio channels can be assigned to either channel 1 or channel 2. Sine, Square & Triangular waveforms. Frequency range from 1 mHz up to 22 kHz. Amplitude as percentage 0-100%. Set duty for square waveforms or skew triangular waveforms to get saw waveforms. Offset the phase of waveforms. Sweep frequency or amplitude (Single, Repeat & Bounce modes). Amplitude Modulation (AM). Frequency Modulation (FM). Burst mode for a specific number of waveforms (1-10000). White noise & pink noise Generator. Pink (1/f) noise falls of at ~3dB per octave between 43 Hz and 44 kHz. Memory slots to save & recall channel configuration. Select values with spring slider or number pad. More detailed explanation available on website

Security & authenticity

Security rating: Trusted

Signing certificate

  • Signature matches the Google Play version Checked by the source store on Apr 1, 2016.
  • Certificate issued to “Owen” This is the certificate of the Google Play version.

Store checks and file details

  • Developer signature verified Apr 1, 2016
  • Validated against Google Play Apr 1, 2016
  • Antivirus scan passed May 25, 2020
  • Signed byCN=Owen
  • Signing certificate (SHA-1)DF:B4:D0:C0:D0:D3:2D:2A:CD:6B:21:6A:DE:DC:E1:A3:BD:02:84:1D
  • File MD5048bb035984f2f75501a58e53b102f2a
  • Uploaded by “apps” Platinum tier · 3,423,810 followers · uploading since 2010

Scans and ratings come from the source store; the certificate comparisons are AAPKs's own, made from the files' published signatures. AAPKs doesn't scan files itself — compare the MD5 and signer after downloading.

Required hardware & features

Function Generator APK: questions and answers

Can I install this APK over the version I already have?

Yes, if your installed copy is older. It is signed like the Google Play version, so Android installs it as an update and keeps your data.

Is the Function Generator APK safe?

No one can promise that a file is safe, but some things can be checked. The source store rates this file Trusted. Its signature matches the Google Play version. After downloading, check that the file's MD5 is 048bb035984f2f75501a58e53b102f2a.

Tags

More Music & Audio apps