A2DP Volume vs Speed of Sound
Side-by-side comparison of two open source alternatives
A2DP Volume
Automatically adjusts the media volume on connect and resets it on disconnect. This is done so that stereo streaming audio can work properly. Intended primarily for car Bluetooth systems. It can read out text messages using Text To Speech (TTS) services while you are connected. Each paired Bluetooth device or virtual device (home dock, car dock, power connection, or headset plug) can be configured to your liking. There is a manual on the website. A secondary feature is the ability to capture location information so you can find where you left your car. The location can also be automatically captured when exiting Car Mode on your Android device and read by any app that understands GPS data.
Speed of Sound
N.B The app no longer requires Google Maps to install but the app will crash if you try to access the maps without having it. N.B It isn't possible to view your position on a map because Google Maps is the only map source and the API keys are not in the source code. If you need to use Google Maps install the developer's build from the website. Keep your eyes on the road, not your phone! Speed of Sound automatically adjusts your music player's volume while you're driving about with your GPS, lowering the volume while driving slowly or at a stoplight, and cranking it up on the highway. This is a feature available in some more expensive cars and sound systems. We're giving it to you for free to use on your phone. Just start up your music player, plug your phone into your car stereo, and open Speed of Sound.
| Feature | A2DP Volume | Speed of Sound |
|---|---|---|
| License | GPL-3.0-only | GPL-2.0-only |
| Install sources | F-DroidGitHub | F-DroidGitHub |
| Categories | Media PlayerVideo | Media PlayerVideo |
| Features | Ad-FreeOpen SourceNo Tracking | Ad-FreeOpen SourceNo Tracking |
| Platforms | Android | Android |
| Website | ||
| Source code |