Sound Amplifier

Filter, augment and amplify the sound around you and on your device.

Google LLC · com.google.android.accessibility.soundamplifier

4.8 out of 5 (13 ratings) 100M+ downloads v4.91.886631805 30.3 MB Android 12+ PEGI 3 · Everyone

Download APK 30.3 MB v4.3.476043581 · Google Play signature All versions

Signed differently from the Google Play version Details

Watch the Sound Amplifier trailer on YouTube

At a glance

Latest version: v4.91.886631805 (236304)
Updated: Aug 9, 2026 (2 months ago)
APK size: 30.3 MB
Requires: Android 12+ (API 31)
CPU support: ARM 64-bit
Category: Communication (app)
Listed since: Feb 7, 2019
Permissions: 16 (3 sensitive)
Developer contact: [email protected]
Privacy: Developer's privacy policy

About this APK

Sound Amplifier is an app by Google LLC in the Communication category, listed since February 2019. It includes native code only for ARM 64-bit, so it won't install on phones that can only run 32-bit apps.

Since version 3.1.381239788, the minimum Android version rose from 6.0 to 12. It asks for 16 permissions, 3 of them sensitive: camera, record audio and see all installed apps. It asks for the same permissions as version 4.5.600557347. The app can read the advertising ID that ad and analytics services use.

Ratings

4.8out of 513 ratings

5 ★77%
4 ★23%
3 ★0%
2 ★0%
1 ★0%

Ratings from users of the source store — not collected or verified by AAPKs.

What's new in v4.91.886631805

This update includes bug fixes.

Description

From the listing uploaded by “arzk”.

Sound Amplifier makes everyday conversations and surrounding sounds more accessible among people who are hard of hearing, using just your Android phone and a pair of headphones. Use Sound Amplifier to filter, augment and amplify sounds around you and on your device. Features • Reduce unwanted noise to recognise speech better. • Focus on a speaker’s voice in noisy environments with conversation mode. (Available for Pixel 3 and above.) • Listen to conversations, TV or lectures. For audio sources that are farther away, Bluetooth headphones are recommended. (Bluetooth headphones might have delayed sound transmission.) • Personalise your listening experience for surrounding conversation or media playing on your device. You can reduce noise or boost low frequency, high frequency or quiet sounds. Set your preferences for both ears or separately for each ear. • Turn Sound Amplifier on and off using the Accessibility button, a gesture or Quick Settings. Learn more about the Accessibility button, gesture and Quick Settings: https://support.google.com/accessibility/android/answer/7650693 Requirements • Available for Android 8.1 and later. • Pair your Android device with headphones. • Conversation mode is currently available on Pixel 3 and above. Send us your feedback on Sound Amplifier by emailing: [email protected]. For help using Sound Amplifier, connect with us at https://g.co/disabilitysupport . Permissions notice • Microphone: Access to the microphone will allow Sound Amplifier to process the audio for amplification and filtering. No data is collected or stored. • Accessibility service: Since this app is an accessibility service, it can observe your actions, retrieve window content and observe text that you type.

Version history

5 versions are listed; the oldest rated Trusted is v3.1.381239788. Since v4.91.886631805 it requires Android 12+.

v4.91.886631805 LATEST Aug 9, 2026 30.3 MB TRUSTED v4.5.600557347 Mar 30, 2026 18.2 MB TRUSTED v4.3.476043581 Jun 23, 2026 16.5 MB TRUSTED v3.1.381239788 Aug 16, 2021 31.7 MB TRUSTED v899.9999.999 Mar 31, 2024 9.4 MB UNKNOWN

All 5 versions

Sound Amplifier among popular Communication apps

Sound Amplifier and the Communication apps ranked next to it by downloads
App	Rating	Downloads	Download size
imo HD - Video Calls and Chats	4.7 (7)	100M+	143.8 MB
imo Lite -video calls and chat	–	100M+	15.3 MB
Sound Amplifier (this app)	4.8 (13)	100M+	30.3 MB
Zenly - Best Friends Only	3.8 (43)	100M+	–
Kik — Messaging & Chat App	4.2 (861)	100M+	103 MB

Apps listed next to it in our Communication ranking by downloads. Ratings and download counts come from the source store; ratings with fewer than five votes and sizes of outdated listings aren't shown.

Security & authenticity

Security rating: Trusted

Signing certificate

Certificate with Google's generic name Google Play App Signing gives the keys it manages this name, but anyone can put it in a certificate, so this alone proves nothing.
Signed differently from the Google Play version v4.5.600557347 and v4.3.476043581, which match Google Play, use another certificate. Android normally won't update an installed Play Store copy with this file. v4.5.600557347 · v4.3.476043581

Store checks and file details

Developer signature under review Aug 24, 2026
Signed byCN=Android, OU=Android, O=Google Inc., L=Mountain View, ST=California, C=US
Signing certificate (SHA-1)26:71:0B:DB:08:F6:46:3B:1F:58:42:E2:77:51:69:E3:1D:D0:73:01
File MD5941c034ac8cc04a89cc081a5fc1cb557
Uploaded by “arzk” Bronze tier · 1,095 followers · uploading since 2014

Scans and ratings come from the source store; the certificate comparisons are AAPKs's own, made from the files' published signatures (3 other versions compared). AAPKs doesn't scan files itself — compare the MD5 and signer after downloading.

Permissions (16)

Sound Amplifier requests 16 permissions, 3 of them sensitive.

Camera Sensitive android.permission.CAMERA
Record audio (microphone) Sensitive android.permission.RECORD_AUDIO
See all installed apps Sensitive android.permission.QUERY_ALL_PACKAGES
Advertising ID com.google.android.gms.permission.AD_ID
Foreground service microphone android.permission.FOREGROUND_SERVICE_MICROPHONE
Full network access android.permission.INTERNET
Get package size android.permission.GET_PACKAGE_SIZE
Gsf write gservices (custom) com.google.android.providers.gsf.permission.WRITE_GSERVICES
Internal broadcast protection (app-defined) com.google.android.accessibility.soundamplifier.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION
Modify audio settings android.permission.MODIFY_AUDIO_SETTINGS
Prevent the device from sleeping android.permission.WAKE_LOCK
Read Google service settings com.google.android.providers.gsf.permission.READ_GSERVICES
Read gservices android.permission.READ_GSERVICES
Run foreground services android.permission.FOREGROUND_SERVICE
Show notifications android.permission.POST_NOTIFICATIONS
View network connections android.permission.ACCESS_NETWORK_STATE

Required hardware & features

Camera android.hardware.camera
Basic touch input android.hardware.faketouch
Microphone android.hardware.microphone
Feature pixel 2018 experience com.google.android.feature.PIXEL_2018_EXPERIENCE

Sound Amplifier APK: questions and answers

Is there a version of Sound Amplifier for older Android phones?

The current version needs Android 12 or later. Version 4.3.476043581 is the newest listed build that installs on Android 8.1 and later. Get version 4.3.476043581 · All versions

Can I install this APK over the version I already have?

Probably not if you installed Sound Amplifier from Google Play: this file is signed with a different certificate, and Android normally refuses such an update. You would have to uninstall your copy first, which deletes its data unless it is backed up.

Is the Sound Amplifier APK safe?

No one can promise that a file is safe, but some things can be checked. The source store rates this file Trusted. It is signed with a different certificate than the Google Play version. After downloading, check that the file's MD5 is 941c034ac8cc04a89cc081a5fc1cb557.