title: Audio playback of 8kHz and 44.1kHz on Android
body: <p>Is it possible to play 8khz and 44.1kHz audio simultaneously in
   Android? If yes, how is this achieved? Is it using AlsaMixer or
   AudioFlinger (MixerThread) or does it need Audio HW codec support?</p>
  
  <p>Thank you</p>
  
  <hr>
  
  <p>let me put my question in this way:</p>
  
  <p>I have a Mp3 file playing and there are some voice data which are played in between while I am listening to a song. So my question is, does these two files, mp3 and voice data are getting mixed using some mixer and then played over output device or they are just played individually? Does any one tell if a mixer(ALSA) is always needed while trying to play mp3 and voice note?</p>