Add setGain() function

master
boblark 1 year ago
parent 6916b30464
commit 62b89bb14d
  1. 4
      analyze_tonedetect_F32.cpp
  2. 6
      analyze_tonedetect_F32.h

@ -99,7 +99,7 @@ float AudioAnalyzeToneDetect_F32::read(void) {
len = length;
__enable_irq();
power = q1*q1 + q2*q2 - q1*q2*coef;
return 2.0f*sqrtf(power)/(float)len; // Scale to (0.0, 1.0)
return 2.0f*gain*sqrtf(power)/(float)len; // Scaled to gain*(0.0, 1.0)
}
AudioAnalyzeToneDetect_F32::operator bool() {
@ -112,7 +112,7 @@ AudioAnalyzeToneDetect_F32::operator bool() {
q2 = out2;
len = length;
__enable_irq();
power = q1*q1 + q2*q2 - q1*q2*coef;
power = gain*gain*(q1*q1 + q2*q2 - q1*q2*coef);
trigger = (float)len * thresh;
trigger *= trigger;
//Serial.println("bool: power, trigger = "); Serial.print(power, 6); Serial.print(", "); Serial.println(trigger, 6);

@ -32,6 +32,7 @@
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
// Added setGain(gain) March 2023 Bob L
#ifndef analyze_tonedetect_F32_h_
#define analyze_tonedetect_F32_h_
@ -63,6 +64,10 @@ public:
//(uint16_t)( ( (float)sample_rate_Hz/freq*(float)cycles) + 0.5f) );
}
void setGain(float _gain) {
gain = _gain;
}
bool available(void) {
__disable_irq();
bool flag = new_output;
@ -91,6 +96,7 @@ private:
float s1, s2; // Goertzel algorithm state
float out1, out2; // Goertzel algorithm state output
float power;
float gain = 1.0f; // Voltage gain, added Mar 2023
uint16_t length; // number of samples to analyze
uint16_t count; // how many left to analyze
uint16_t ncycles; // number of waveform cycles to seek

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