Sound Amplifier icon

Sound Amplifier

v3.1.381239788 · 31.7 MB · code 109756

8d71d72ffb76281ff8acf5e2bb7d2c4c TRUSTED

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File information

UpdatedAug 16, 2021
PublishedSep 26, 2019
Packagecom.google.android.accessibility.soundamplifier
Versionv3.1.381239788 (109756)
Size31.7 MB
MD58d71d72ffb76281ff8acf5e2bb7d2c4c
Min SDK23
ABIsarm64-v8a
Malware scanTRUSTED
Signature SHA126:71:0B:DB:08:F6:46:3B:1F:58:42:E2:77:51:69:E3:1D:D0:73:01
SignerCN=Android, OU=Android, O=Google Inc., L=Mountain View, ST=California, C=US
Total downloads100,000,000
This version100,000,000
DeveloperGoogle LLC
Age ratingEveryone

What's new in v3.1.381239788

• Filter, augment and amplify video and audio played on your device. (Available on Pixel phones with Android 10, Dec. 2019 or newer system update.)

• Use Sound Amplifier with your wired or Bluetooth headphones.

If you have a question or suggestion, tap 'Send feedback' in Sound Amplifier settings, or connect with us at

Security scan

TRUSTED
  • Developer signature verified 2025-05-21
  • Scanned for malware 2021-08-16 22:05:33
  • Signature SHA1 26:71:0B:DB:08:F6:46:3B:1F:58:42:E2:77:51:69:E3:1D:D0:73:01
  • File MD5 8d71d72ffb76281ff8acf5e2bb7d2c4c

How to install Sound Amplifier v3.1.381239788 on Android 6.0 Marshmallow+

Takes about 2 minutes. You'll need roughly 31.7 MB of free storage.

  1. Grab com.google.android.accessibility.soundamplifier_109756.apk — hit the Download button above (31.7 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 8d71d72ffb76281f…. Any difference means the file is corrupted or tampered — delete and re-download.
  4. Open the APK — tap the download notification, or find com.google.android.accessibility.soundamplifier_109756.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=Android, OU=Android, O=Google Inc., L=Mountain View, ST=California, 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 Sound Amplifier — tap Open on the install screen, or find the Sound Amplifier icon in your app drawer (this build targets arm64-v8a devices).
Common install errors for Sound Amplifier
  • "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 6.0 Marshmallow 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 arm64-v8a native code. Devices with a different CPU will reject it.

All versions (5)

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