   phaccu=phaccu+tword_m; // soft DDS, phase accu with 32 bits
   icnt=phaccu >> 24;     // use upper 8 bits for phase accu as frequency information
                          // read value fron ROM sine table and send to PWM DAC
-  sig = pgm_read_byte_near(sine256 + icnt);
-  OCR2A= sig;   
-  // fill scope buffer
-  scopeBuf[xPos] = sig - 160;
-  xPos++;
-  if (xPos > 478){ 
-    xPos = 0;
-  }
+  OCR2A = pgm_read_byte_near(sine256 + icnt);
   
   if(icnt1++ == 125) {  // increment variable c4ms all 4 milliseconds
     c4ms++;

/************************************ INCLUDED LIBS & HEADERS ***********************************************/
#include "avr/pgmspace.h"
#include "Wavetables.h"
#include <UTFT.h>

/************************************ DEFINITIONS ***********************************************************/
// Audio

volatile unsigned long phaccu;   // pahse accumulator
volatile unsigned long tword_m;  // dds tuning word m


/************************************ SETUP *****************************************************************/
void setup()
{ 
  // Audio setup
  pinMode(AUDIOPIN, OUTPUT); // output / frequency output
  Setup_timer2();
