title: Android PCM Bytes
body: <p>I am using the AudioRecord class to analize raw pcm bytes as it comes in the mic.</p>
  
  <p>So thats working nicely. Now i need convert the pcm bytes into decibel.</p>
  
  <p>I have a formula that takes sound presure in Pa into db.</p>
  
  <p>db = 20 * log10(Pa/ref Pa)</p>
  
  <p>So the question is the bytes i am getting from audiorecorder from the buffer what is it is it amplitude pascal sound pressure or what.</p>
  
  <p>I tried to putting the value into te formula but it comes back with very hight db so i do not think its right</p>
  
  <p>thanks</p>