title: "emulator: warning: opening audio input failed" displayed in the console while AVD is launching
body: <pre><code>"emulator: warning: opening audio input failed"
  </code></pre>
  
  <p>The above message is displayed in the <strong>console</strong> everytime an <strong>AVD is launching</strong>, and then <strong>no sound</strong> is coming out from the emulator. <br></p>
  
  <p>I have tried to <strong>delete the AVD</strong> and have created a new one again and again, but it didn't help with the problem.<br></p>
  
  <p>I have also searched on Google for many time, but I find nothing useful.<br></p>
  
  <p>It is really interesting that people tend to suggest to just ignore the problem because the AVD is still working fine without sound.<br></p>
  
  <p>But I am writing an Android App that related to sound, I really need a workable solution to make the <strong>AVD to "speak" again</strong>.<br></p>
  
  <p>Many thanks to you.</p>