DTMFDetect3cc
Dtmfdetect is used for detecting dtmf tones in a stream of audio.
Usage
#include <audio.h>
Public Member Functions
int putSamples (int16_t buffer[], int count)
int getResult (char *buf, int max)
Protected Member Functions
void goertzelInit (goertzel_state_t *s, tone_detection_descriptor_t *t)
void goertzelUpdate (goertzel_state_t *s, int16_t x[], int samples)
float goertzelResult (goertzel_state_t *s)
Detailed Description
DTMFDetect is used for detecting DTMF tones in a stream of audio.
It currently only supports 8000Hz input.