diff --git "a/irmp.c" "b/irmp.c"
index 0427770..bbaca5a 100644
--- "a/irmp.c"
+++ "b/irmp.c"
@@ -2978,6 +2978,12 @@ irmp_store_bit2 (uint_fast8_t value)
 }
 #endif // IRMP_SUPPORT_RC5_PROTOCOL == 1 && (IRMP_SUPPORT_FDC_PROTOCOL == 1 || IRMP_SUPPORT_RCCAR_PROTOCOL == 1)
 
+
+#ifdef ANALYZE
+static uint32_t s_curSample = 0;
+static uint32_t s_startBitSample = 0;
+#endif
+
 /*---------------------------------------------------------------------------------------------------------------------------------------------------
  *  ISR routine
  *  @details  ISR routine, called 10000 times per second
@@ -3069,6 +3075,7 @@ irmp_ISR (void)
 #ifdef ANALYZE
                 if (! irmp_pulse_time)
                 {
+                    s_startBitSample = s_curSample;
                     ANALYZE_PRINTF("%8.3fms [starting pulse]\n", (double) (time_counter * 1000) / F_INTERRUPTS);
                 }
 #endif // ANALYZE