dspp/FMMod.h at master · mbroihier/dspp · GitHub

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
/*
 *      FMMod.h - FM modulation class
 *
 *      Copyright (C) 2019
 *          Mark Broihier
 *
 */

/* ---------------------------------------------------------------------- */

/* ---------------------------------------------------------------------- */
class FMMod {

  private:
  float centerFrequency;  // center frequency
  float fd;               // frequency deviation
  float sampleRate;       // samples per second
  float * inputBuffer;    // raw input
  float * outputBuffer;   // output buffer
  float deltaT;           // time delta of each sample
  float TWO_PI;

  int readSignalPipe();
  int writeSignalPipe();

  public:

  FMMod(float sampleRate);

  int modulate();

  ~FMMod(void);

};