message: AudioFilterbank: improve comments
diff: #define AudioFilterbankBiquad_COEFF_PER_BIQUAD 6 //3 "b" coefficients and 3 "a" coefficients per biquad
  //This class helps manage some of the configuration and state information of the AudioFilterbank classes.
  +//By having this class, it tries to put everything in one place
  //It is also helpful for managing the GUI on the TympanRemote mobile App.
  class AudioFilterbankState {
  public:
  @@ -46,6 +47,11 @@ class AudioFilterbankState {
  int set_n_filters(int n);
  int get_n_filters(void) { return n_filters; }
  +
  +
  + /// These functions are only for internal work by this class; these functions do not hold any
  + /// state or configuration information about the AudioFilterbank class.
  +
  //keep track of the maximum number of filters...the user shouldn't have to worry about this
  int set_max_n_filters(int n);
  int get_max_n_filters(void) { return max_n_filters; }
  