SpecStream Audio Spectrum Plot app icon

SpecStream Audio Spectrum Plot

View audio spectrum in real time

HARDCODED JOY S.R.L. · com.hardcodedjoy.specstream

Not rated yet 10K+ downloads v1.3.3 1001.2 KB Android 5.0+ PEGI 3 · Everyone

  • Signature matches the Google Play version Details

At a glance

Latest version
v1.3.3 (14)
Updated
Aug 29, 2026 (1 month ago)
APK size
1001.2 KB
Requires
Android 5.0+ (API 21)
CPU support
x86 32-bit, x86 64-bit, ARM 32-bit, ARM 64-bit
Category
Tools (app)
Listed since
Jun 14, 2024 (at least)
Permissions
4 (1 sensitive)
Website
hardcodedjoy.com
Developer contact
[email protected]
Privacy
Developer's privacy policy

About this APK

SpecStream Audio Spectrum Plot is an app by HARDCODED JOY S.R.L. in the Tools category, listed since at least June 2024. 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.

Since version 1.3.1, the APK shrank from 1.2 MB to 1001.2 KB. It asks for 4 permissions, 1 of them sensitive: record audio. It asks for the same permissions as version 1.3.2. The app offers in-app purchases through Google Play.

What's new in v1.3.3

• targetSdk 36

Description

From the listing uploaded by “appupdater”.

App gets audio data from microphone and plots the real time spectrum in the form of a scrolling image. App settings: • Sample Rate = the sample rate (in Hz) at which the microphone will be read. Most devices support up to 48 kHz. High-end devices support up to 192 kHz. • FFT Buffer Size = the size (in samples) of the audio buffer used to compute the FFT. Must be a power of 2, min = 128, max = 16384. Bigger value gives better frequency resolution. Smaller value gives better time resolution. • Min. Dispalyed Frequency • Max. Displayed Frequency • Gain (dB) • Displayed Time Window (in milliseconds) • Frequency Grid Step (in Hz) = will draw horizontal division lines • Time Grid Step (in milliseconds) = will draw vertical division lines moving together with the plot. Free version limitations: • sample rate = 8000 Hz (fixed) • FFT buffer size = 512 (fixed) Users can upgrade to Premium Version via in-app purchase (one time payment). Premium version advantages: • configurable sample rate. • configurable FFT buffer size: 128, 256, 512, 1024, 2048, 4096, 8192, 16384. Planned features for future app updates: • show spectrum of audio file • export spectrum to file

Version history

3 versions are listed, going back to v1.3.1.

All 3 versions

Security & authenticity

Security rating: Trusted

Signing certificate

  • Signature matches the Google Play version Checked by the source store on Aug 29, 2026.
  • Certificate issued to “hardcoded joy” This is the certificate of the Google Play version.
  • Same certificate as the 2 other versions checked

Store checks and file details

  • Developer signature verified Aug 29, 2026
  • Validated against Google Play Aug 29, 2026
  • Signed byCN=hardcoded joy
  • Signing certificate (SHA-1)A0:43:42:C4:C6:6F:70:3E:E1:8C:F8:6A:7B:64:31:FD:16:E2:9F:64
  • File MD5ebb3eb55431886586d80e37fcf790009
  • 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 (2 other versions compared). AAPKs doesn't scan files itself — compare the MD5 and signer after downloading.

Permissions (4)

SpecStream Audio Spectrum Plot requests 4 permissions, 1 of them sensitive.

Required hardware & features

SpecStream Audio Spectrum Plot 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 SpecStream Audio Spectrum Plot free?

The APK is free to download, but the app offers in-app purchases through Google Play.

Is the SpecStream Audio Spectrum Plot 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. It is signed with the same certificate as the 2 other versions checked. After downloading, check that the file's MD5 is ebb3eb55431886586d80e37fcf790009.

Tags

More Tools apps