Diff: soundsensor.cpp

Revision:

3:372e67c123c3

Parent:

1:29daa2bdd0c6

Child:

4:89a9c205446c

--- a/soundsensor.cpp	Thu Jan 17 10:41:12 2019 +0000
+++ b/soundsensor.cpp	Fri Jan 18 10:28:28 2019 +0000
@@ -13,7 +13,8 @@
 }
 
 float soundsensor::convertToDb(float value){
-    return 16.801 * log (value/65535) + 9.872;
+    //return 16.801 * log (value/65535) + 9.872;
+    return 1000000*20*(log(value)/log(10)))/1000000;
 }
 
 float soundsensor::revertFromDb(float value){
@@ -26,9 +27,20 @@
 float soundsensor::listen(bool toDb){
     AnalogIn sensor(this->getPin());
     float value = sensor.read_u16();
+    
+    for(int i=0;i<100;i++){
+        values[i] = soundSensor.read_u16();
+        wait(0.0001);
+    }
+ 
+    for(int j=0;j<100;j++){
+        sum += values[j];   
+        }
+    average = sum/100;
+
     if(toDb){
-        return this->convertToDb(value);
+        return this->convertToDb(average);
     }else{
-        return value;
+        return average;
     }
 }
\ No newline at end of file