SpectrumGen

Experimental spectral synth

Alexander Zolotov · nightradio.spectrumgen

5.0 out of 5 (2 ratings) 1K+ downloads v1.3f 4.2 MB Android 4.1+ PEGI 3 · Everyone

Download APK 4.2 MB All versions

Signature matches the Google Play version Details

Watch the SpectrumGen trailer on YouTube

At a glance

Latest version: v1.3f (103007)
Updated: Jun 25, 2026 (3 months ago)
APK size: 4.2 MB
Requires: Android 4.1+ (API 16)
CPU support: x86 32-bit, x86 64-bit, ARM 32-bit, ARM 64-bit
Graphics: OpenGL ES 2.0+
Category: Music & Audio (app)
Listed since: Oct 10, 2025 (at least)
Permissions: 8 (3 sensitive)
Website: warmplace.ru/soft/synths
Developer contact: [email protected]

About this APK

SpectrumGen is an app by Alexander Zolotov in the Music & Audio category, listed since at least October 2025. It includes native code for x86 32-bit, x86 64-bit, ARM 32-bit and ARM 64-bit, so it runs on practically every phone.

It asks for 8 permissions, 3 of them sensitive: record audio, read shared storage and modify shared storage.

What's new in v1.3f

optimization + bug fixes

Description

From the listing uploaded by “appupdater”.

SpectrumGen is a spectral synthesizer with a minimalistic pixel interface. It's a bit like the PixelWave, but now you can draw the spectrum of sound! Also available for iOS. Key features: • it is possible to draw the spectrum and play it at the same time; • export to WAV; • eight predefined timbres; • changeable number of octaves (from 2 to 8); • USB MIDI input (Android 6+). Dark colors - low frequencies (bass). Bright colors - high frequencies. Known solutions for some problems: https://warmplace.ru/android

Security & authenticity

Security rating: Trusted

Signing certificate

Signature matches the Google Play version Checked by the source store on Jun 25, 2026.
Certificate issued to “Alexander Zolotov” This is the certificate of the Google Play version.

Store checks and file details

Developer signature verified Jun 25, 2026
Validated against Google Play Jun 25, 2026
Signed byCN=Alexander Zolotov, L=Ekaterinburg
Signing certificate (SHA-1)C2:3E:35:99:EE:45:36:D3:8D:42:A4:B9:6E:DA:45:57:59:FE:22:03
File MD590a2a78691145f17abce44e1e7690146
Uploaded by “appupdater” Gold tier · 117,810 followers · uploading since 2020

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.

Permissions (8)

SpectrumGen requests 8 permissions, 3 of them sensitive.

Modify shared storage Sensitive android.permission.WRITE_EXTERNAL_STORAGE
Read shared storage Sensitive android.permission.READ_EXTERNAL_STORAGE
Record audio (microphone) Sensitive android.permission.RECORD_AUDIO
Full network access android.permission.INTERNET
Google Play license check com.android.vending.CHECK_LICENSE
Internal broadcast protection (app-defined) nightradio.spectrumgen.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION
Prevent the device from sleeping android.permission.WAKE_LOCK
View network connections android.permission.ACCESS_NETWORK_STATE

Required hardware & features

Basic touch input android.hardware.faketouch

SpectrumGen 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 SpectrumGen 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 90a2a78691145f17abce44e1e7690146.