title: Remove noise from audio sample record using audiorecorder
body: <p>I am making TalkingTomcat like app. I am recording voice using android audio recorder and using libsonic I am playing sound by changing pitch. but during playing sound it give a lot of noise.
  Even i am playing sound sample using audio track then also it give noice.
  I am using 44100 sample rate and MONO and 16 bits.</p>
  
  <p>If anyone can help me please help me. Or give me another way to achieve this.</p>