A free app for Android, by MarksThinkTank.
The Around Sound app is an audio player that allows you to listen to audio in real time and be aware of your surroundings. It works by using your phone’s microphone to detect any loud sounds and then play back the audio that triggered it. It can be used with any audio player and even works with video players.
The app is very simple to use and works in real time. It also allows you to listen to audio in any format and even play your own music.
It is also compatible with many different headsets, including those that use Bluetooth.
It is not compatible with Android phones that use a chip other than the ARMv7 (i.e. Samsung, LG, HTC, Sony, Lenovo, etc.