     * Does not include prescription saving
     * It can switch between two presets, both of which you can change
         * a NORMAL preset ("DSL_GHA_Preset0.h")
-		    * a FULL-ON GAIN preset ("DSL_GHA_Preset1.h")
+        * a FULL-ON GAIN preset ("DSL_GHA_Preset1.h")
      
   Hardware Controls:
     Potentiometer on Tympan controls the broadband gain.


// Create classes for controlling the system
#include      "SerialManager.h"
#include      "State.h"                            //must be after N_CHAN is defined
BLE           ble(&Serial1);                       //create bluetooth BLE
SerialManager serialManager(&ble);                 //create the serial manager for real-time control (via USB or App)
State         myState(&audio_settings, &myTympan, &serialManager); //keeping one's state is useful for the App's GUI



  myTympan.setHPFonADC(true,cutoff_Hz,audio_settings.sample_rate_Hz); //set to false to disble

  //Choose the desired audio input on the Typman
  myTympan.inputSelect(TYMPAN_INPUT_ON_BOARD_MIC);     // use the on-board micropphones
  //myTympan.inputSelect(TYMPAN_INPUT_JACK_AS_MIC);    // use the microphone jack - defaults to mic bias 2.5V
  //myTympan.inputSelect(TYMPAN_INPUT_JACK_AS_LINEIN); // use the microphone jack - defaults to mic bias OFF

  //set volumes
  setOutputGain_dB(0.f);                   // -63.6 to +24 dB in 0.5dB steps.  uses signed 8-bit
  float default_mic_input_gain_dB = 15.0f; //gain on the microphone
  setInputGain_dB(default_mic_input_gain_dB); // set MICPGA volume, 0-47.5dB in 0.5dB setps
  setDigitalGain_dB(myState.digital_gain_dB); // set gain low
