int incomingAudio;
float factor = 1;
float factor1 = 1;
float factor2 = 1;
int potpin = 1;
int potpin2 = 2;
int select;
int selectschakelaar = 8;
void setup(){
  for (byte i=0;i<8;i++){
    pinMode(i,OUTPUT);
    pinMode(selectschakelaar,INPUT);
  }
}

void loop(){
  select = digitalRead(selectschakelaar);
  if (select == HIGH)
  {
     factor = analogRead(potpin);
     factor = map(factor, 0, 1023, 1,10);
     factor2 = analogRead(potpin2);
     factor2 = map(factor2, 0, 1023, 0, 5000);
   
       incomingAudio = analogRead(A0);
       
       incomingAudio = (incomingAudio+1)/4 - 1;
       if (incomingAudio<0){
                     incomingAudio = 0;
                            }
       PORTD = incomingAudio;
       factor1 = factor1 + sin(factor)/1;
       if (factor1 > factor2)
         {
           factor1 = 1;
         }
       if (factor1 < 1)
        {
          factor1 = factor2;
        }
    delayMicroseconds(factor1);
     }
     
     if (select == LOW)
     {
       incomingAudio = analogRead(A0);
       
       incomingAudio = (incomingAudio+1)/4 - 1;
       if (incomingAudio<0){
                     incomingAudio = 0;
                            }
       PORTD = incomingAudio;
      //delayMicroseconds(factor1+460); 
      
     }
       
}