title: Strange sound produced by Android Emulator when turned on in Android Studio
body: <p>I've just update my Android Studio together with the Android Emulator to the newest version. After I click "run" in my project and selected my emulator,  it boots up like normal. However, when the app pops up, I can hear some strange noise produced. I've made sure that I didn't set the app to play any sound. <a href="https://drive.google.com/open?id=1CMMAN3v0BH0ehigIa84Qd4OWROy_HtEs" rel="noreferrer">Link to the strange noise</a></p>
  
  <p>Android Emulator: Galaxy Nexus API 27<br>
  Android Studio Version: 3.0.1</p>