title: AudioTrack: AUDIO_OUTPUT_FLAG_FAST denied by client due to mismatching sample rate
body: <p>Does anybody know how to fix this warning message?</p>
  
  <blockquote>
    <p>07-14 10:38:55.411 V/tracker-audiotest(22426): Recording Thread::run(): start audioRecord recording.
    07-14 10:45:51.490 "W/AudioTrack(  607): AUDIO_OUTPUT_FLAG_FAST denied by client due to mismatching sample rate (44100 vs 48000)"</p>
  </blockquote>
  
  <p>When I test the audio latency on Android 4.4, I face a suddenly delay increasing after I saw this warning message. But I don't change the sample rate during the test and the initial setting is in 48kHz. This warning message happen after 7 minutes recording started.</p>
  
  <p>You can test this project on your device if needed. The project is in GitHub: </p>
  
  <blockquote>
    <p><a href="https://github.com/garyyu/OpenSL-ES-Android-DelayTest">https://github.com/garyyu/OpenSL-ES-Android-DelayTest</a></p>
  </blockquote>