Sub Tester and Frequency Generator icon

Sub Tester and Frequency Generator

v16 · 60 MB · code 16

074ddba2f13d76c65d2073acfff6c1f8 TRUSTED

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File information

UpdatedMay 19, 2020
PublishedMay 19, 2020
PackageinfrasonicTech.subwooferTestTones
Versionv16 (16)
Size60 MB
MD5074ddba2f13d76c65d2073acfff6c1f8
Min SDK15
ABIsarmeabi-v7a
Malware scanTRUSTED
Signature SHA193:98:7A:75:BD:23:38:44:06:51:B7:17:B2:08:84:50:5A:51:1D:BF
SignerCN=Janet Alvarez, OU=InfrasonicTechnologies, O=InfrasonicTechnologies, L=albany, ST=NY, C=US
Total downloads1,000
This version1,000
DeveloperInfrasonic Technologies
Age ratingEveryone

Security scan

TRUSTED
  • Developer signature verified 2020-05-19
  • Scanned for malware 2021-01-04 22:37:49
  • Signature SHA1 93:98:7A:75:BD:23:38:44:06:51:B7:17:B2:08:84:50:5A:51:1D:BF
  • File MD5 074ddba2f13d76c65d2073acfff6c1f8

How to install Sub Tester and Frequency Generator v16 on Android API 15+

Takes about 2 minutes. You'll need roughly 60 MB of free storage.

  1. Grab infrasonicTech.subwooferTestTones_16.apk — hit the Download button above (60 MB). If your browser warns about APK files, choose Keep or Download anyway — that warning fires on every APK, not just this one.
  2. Trust your browser to install — on Android 8+ go to Settings → Apps → Special access → Install unknown apps, pick the app you downloaded with (Chrome, Firefox, Files, etc.), and flip Allow from this source. On older Android, toggle Unknown sources under Security.
  3. (Optional) Verify the file — compute the MD5 of the downloaded APK and make sure it matches 074ddba2f13d76c6…. Any difference means the file is corrupted or tampered — delete and re-download.
  4. Open the APK — tap the download notification, or find infrasonicTech.subwooferTestTones_16.apk in your Files app under Downloads, then tap it. Android's package installer will appear.
  5. Check the signer — the install screen will name the publisher. For this build it should read CN=Janet Alvarez, OU=InfrasonicTechnologies, O=InfrasonicTechnologies, L=albany, ST=NY, C=US. If it doesn't match, cancel — you have the wrong file.
  6. Review permissions & tap Install — scroll the permission list, then confirm. If Play Protect flags it, tap Install anyway (this APK was scanned as TRUSTED).
  7. Done — open Sub Tester and Frequency Generator — tap Open on the install screen, or find the Sub Tester and Frequency Generator icon in your app drawer (this build targets armeabi-v7a devices).
Common install errors for Sub Tester and Frequency Generator
  • "App not installed" — usually means an older or differently-signed version is already on your device. Uninstall it first, then retry. Your data may be lost unless you back it up.
  • "Parse error" — the APK is for a newer Android than yours. This version needs Android API 15 or later. Pick an older build from the versions list below.
  • "There was a problem parsing the package" — the download was interrupted. Delete the file and re-download over Wi-Fi.
  • Works on one phone but not another — this build ships armeabi-v7a native code. Devices with a different CPU will reject it.

All versions (1)

v16 LATEST CURRENT May 19, 2020 60 MB TRUSTED

All versions page