====== ReadSoundSensor ======

The **ReadSoundSensor** function reads the sound pressure level (loudness) of the sound currently being 'heard' by the sound sensor (Note: Sound sensors are not included with the standard NXT kit)

The **input** parameter should be an NXT input port number between 1 and 4 (which the sound sensor is plugged into).

The **mode** parameter should be one of the following values: **"DB"** or **"DbA"** depending if you want the returned value in standard Decibels or A-weighted Decibels.
<code>spl = nxt.ReadSoundSensor( input, mode );</code>

====Example - Read sound level on port 1====
<code javascript>
function OnStart()
{
  nxt = app.CreateNxt();
  app.SetMenu( "Connect,Sound Level" );
}

function OnMenu( name )
{
  if( name=="Connect" )
    nxt.ShowDevices();

  else if( name=="Sound Level" )
  {
    spl = nxt.ReadSoundSensor( 1, "dB" );
    app.ShowPopup( spl );
  }
}
</code>