Frequency Sound Generator

Name: Frequency Sound Generator
Author: WeDoAndroidApps

3.04

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WeDoAndroidApps

3.971M+ installs

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Master the art of sound with Tone Generator, your audio laboratory.

Frequency Sound Generator: tones, noise and sweeps for Android

By Trang Nguyen

Editor, media and streaming

Tone, sweep and multitone generators, with 16 real-time channels
White and pink noise, plus ultrasound output on a 48 kHz or 96 kHz DAC
Audio file generator with multi-channel output up to 5.1
Sweeps that run linear or logarithmic, for musicians
Presets that store a setup for reuse
Frequency stepping in real time, without pops or clicks

What this sound generator is for

This is a signal generator for Android. It produces test tones, swept frequencies and noise, which is the kind of output an engineer uses to check speakers, amplifiers, rooms and audio chains. The listing also pitches it at musicians and at people who are simply curious about sound.

Most of the work happens in the generators themselves. The listing describes a 64-bit floating point engine, and it names the generator types individually, so the sections below follow those types.

Tone, sweep, noise and function generators

The basic tone generator plays a single frequency. The sweep generator moves through a frequency range over time, and the listing says sweeps can follow a linear or a logarithmic curve, the latter suited to musical use. White and pink noise generators cover broadband test signals.

A function generator and a program generator add shaped and sequenced output. The listing also includes an ultrasound generator that runs on a 48 kHz or 96 kHz DAC, for work above the audible range.

Multitone output and real-time frequency control

The multitone generator plays up to 16 channels at once, and it updates them in real time. You can nudge a frequency up or down while it plays, and the listing says this is done without pops or clicks. Loops run continuously with no gap, which suits repeating test material.

Amplitude modulation is also listed, along with the 16-track real-time multitone mode. Together they let you build layered or modulated signals and change them while they play.

Stereo levels, fades and channel inversion

Left and right volumes can be set separately. Fade in and fade out times are adjustable, so a tone can start and stop gradually instead of abruptly. Each of these can be saved as a preset and reloaded later.

The app can invert the polarity of one channel. The listing says this is meant for cancellation effects, where a signal is played against its own copy to null it out.

Audio files, multichannel output and built-in sound tests

The audio file generator produces output across multiple channels, up to 5.1 surround. The listing says the app runs in the background, so playback can continue while you use other apps.

A set of ready-made examples and a larger collection of sound tests are included, which the listing says are intended for sound professionals. You can save your own configurations as presets, so a setup you use often does not have to be rebuilt.

What's new

Jul 22, 2026

Mandatory Google Billing API upgrade to V9. Lots of work. Thank you Google for giving me so much work and so little money.

About this APK

The build we hold is Frequency Sound Generator 3.04 (APKS split bundle) for Android 6.0 and up.

Version: 3.04; 304
Requires Android: 6.0+

Package ID: com.jm.android.frequencygenerator
Format: APKS split bundle
Malware scan: Google Play Protect
Permissions: 13 declared
Signed by: CN=José Morais
Certificate SHA-256: 0f9c4d7840e8516eda74fc97aecb23fb77101c1b7bf0587e7bddd16a9abe25b1