diff --git a/lib_com/options.h b/lib_com/options.h
index 0cf958d03f0ea1e00be423e92f82dd91da395295..733223354f9e3aa382a794ed5930c1ff54877d97 100644
--- a/lib_com/options.h
+++ b/lib_com/options.h
@@ -110,6 +110,8 @@
 
 #define FIX_1740_MISING_POP_WMOPS               /* VA: fix issue 1740: missing pop_wmops() */
 
+#define FIX_ISSUE_1744_IVAS_SPAR_TO_DIRAC       /* FhG: NON-BE!!! Simplify azimuth & elevation calculations, remove parameter mismatch for divide3232, fix copy/paste error for elevation */
+#define FIX_ISSUE_1744_IVAS_DIRAC_GET_MONO_FLAG /* FhG: NON-BE!!! Simplify threshold - comparison, change (wrong) Equal-comparion to (correct) Greater-Than-comparison */
 #define NONBE_FIX_864_JBM_RENDER_FRAMESIZE                    /* FhG: issue #864: fix different behaviour of JBM TSM with different render frame sizes */
 
 #define FIX_1762_COMPILER_ISSUE                 /* FhG: fix compiler issues with W_mac_32_32() + ONE_IN_Q30 */
diff --git a/lib_dec/ivas_spar_md_dec_fx.c b/lib_dec/ivas_spar_md_dec_fx.c
index ad1fb4c3aa5ed92ae57d1ec187a6abc359266d48..fdb29e842026e4ea644c553cd636c0d094130545 100644
--- a/lib_dec/ivas_spar_md_dec_fx.c
+++ b/lib_dec/ivas_spar_md_dec_fx.c
@@ -44,6 +44,9 @@
 /*------------------------------------------------------------------------------------------*
  * Local constants
  *------------------------------------------------------------------------------------------*/
+#ifdef FIX_ISSUE_1744_IVAS_SPAR_TO_DIRAC
+#define DEG180_BY_PI_Q24 ( (Word32) 0x394BB835 ) /* 180.0/PI in Q24) */
+#endif
 
 #define IVAS_DEFAULT_DTX_CNG_RAMP ( 8 )
 
@@ -2959,8 +2962,13 @@ void ivas_spar_to_dirac_fx(
                 radius_fx = Sqrt32( temp, &q_temp );
 
                 Word16 check_azi_fx = BASOP_util_atan2( dvy_fx[band], dvx_fx[band], 0 ); /*Q13*/
-                Word32 check_azi_fx_32 = L_shl( check_azi_fx, 16 );                      /*Q29*/
+
+#ifdef FIX_ISSUE_1744_IVAS_SPAR_TO_DIRAC
+                Word32 azi_intermediate = Mpy_32_16_1( DEG180_BY_PI_Q24, check_azi_fx );
+#else
                 Word16 check_azi_fx_res;
+                Word32 check_azi_fx_32 = L_shl( check_azi_fx, 16 ); /*Q29*/
+
                 IF( check_azi_fx_32 < 0 )
                 {
                     check_azi_fx_res = negate( divide3232( L_negate( check_azi_fx_32 ), 1686629760 /*3.145f in Q29*/ ) ); /*Q15*/
@@ -2970,7 +2978,9 @@ void ivas_spar_to_dirac_fx(
                     check_azi_fx_res = divide3232( check_azi_fx_32, 1686629760 /*3.145f in Q29*/ ); /*Q15*/
                 }
                 Word32 azi_intermediate = Mpy_32_16_1( DEGREE_180_Q_22, check_azi_fx_res ); /*Q22*/
-                azi_intermediate = L_add( azi_intermediate, ONE_IN_Q21 );                   /*Q22*/
+#endif
+
+                azi_intermediate = L_add( azi_intermediate, ONE_IN_Q21 ); /*Q22*/
 
                 Word16 azi_res;
                 IF( azi_intermediate < 0 )
@@ -2983,9 +2993,14 @@ void ivas_spar_to_dirac_fx(
                 }
 
                 Word16 check_ele_fx = BASOP_util_atan2( dvz_fx[band], radius_fx, sub( add( 9, q_dvnorm ), q_temp ) ); /*Q13*/
-                Word32 check_ele_fx_32 = L_shl( check_ele_fx, 16 );                                                   /*Q29*/
+#ifdef FIX_ISSUE_1744_IVAS_SPAR_TO_DIRAC
+                Word32 ele_intermediate = Mpy_32_16_1( DEG180_BY_PI_Q24, check_ele_fx );
+#else
+
                 Word16 check_ele_fx_res;
-                IF( check_azi_fx_32 < 0 )
+                Word32 check_ele_fx_32 = L_shl( check_ele_fx, 16 ); /*Q29*/
+
+                IF( check_ele_fx_32 < 0 )
                 {
                     check_ele_fx_res = negate( divide3232( L_negate( check_ele_fx_32 ), 1686629760 /*3.145f in Q29*/ ) ); /*Q15*/
                 }
@@ -2994,7 +3009,8 @@ void ivas_spar_to_dirac_fx(
                     check_ele_fx_res = divide3232( check_ele_fx_32, 1686629760 /*3.145f in Q29*/ ); /*Q15*/
                 }
                 Word32 ele_intermediate = Mpy_32_16_1( DEGREE_180_Q_22, check_ele_fx_res ); /*Q22*/
-                ele_intermediate = L_add( ele_intermediate, ONE_IN_Q21 );                   /*Q22*/
+#endif
+                ele_intermediate = L_add( ele_intermediate, ONE_IN_Q21 ); /*Q22*/
 
                 Word16 ele_res;
                 IF( ele_intermediate < 0 )
diff --git a/lib_enc/ivas_dirac_enc_fx.c b/lib_enc/ivas_dirac_enc_fx.c
index 3aa010d42871b86bffae89220b944cb47965196e..ab48d0f3b849feba671f4ef99a89d61a1af4dad1 100644
--- a/lib_enc/ivas_dirac_enc_fx.c
+++ b/lib_enc/ivas_dirac_enc_fx.c
@@ -660,7 +660,18 @@ static Word16 ivas_dirac_get_mono_flag_fx(
                     move32();
                     move16();
                 }
-
+#ifdef FIX_ISSUE_1744_IVAS_DIRAC_GET_MONO_FLAG
+                IF( BASOP_Util_Cmp_Mant32Exp( W_band_power, W_band_power_e, Mpy_32_32( other_ch_band_power, threshold ), other_ch_band_power_e + threshold_e ) == 1 )
+                {
+                    any_mono_band = 1;
+                    move16();
+                }
+                ELSE
+                {
+                    any_mc_band = 1;
+                    move16();
+                }
+#else
                 IF( BASOP_Util_Cmp_Mant32Exp( divide3232( W_band_power, other_ch_band_power ), 31, threshold, threshold_e ) == 0 )
                 {
                     any_mono_band = 1;
@@ -671,6 +682,7 @@ static Word16 ivas_dirac_get_mono_flag_fx(
                     any_mc_band = 1;
                     move16();
                 }
+#endif
             }
         }
     }