diff --git a/lib_com/options.h b/lib_com/options.h
index 0d99f51e2fb40b0033f9babeeadce3110f59271a..cb66d2f1b67b70dd3d723a094f1fba13a15c69c3 100644
--- a/lib_com/options.h
+++ b/lib_com/options.h
@@ -99,6 +99,7 @@
 #define FIX_2253_CORRECT_GSC_MINIMUM_PIT_SEARCH         /* VA: Fix Issue 2253 where the encoder and decoder could get out of sync */
 #define NONBE_FIX_1967_SBA_DECODER_MONO_OUT_BIG_DIFFERENCES /* Dolby: Fix basop issue 1967 */
 #define FIX_1461_CNG_BW_SWITCHING                       /* Eri: float issue 1461: Stereo parameters are not updated when SID/NODATA forces BW to stay the same */
+#define FIX_2041_SPECTRAL_GAPS_FOR_INACTIVE_FRAMES      /* FhG: Using rounding in multiplication to improve precision in cngNoiseLevel[] */
 
 /* ##################### End NON-BE switches ########################### */
 
diff --git a/lib_dec/fd_cng_dec_fx.c b/lib_dec/fd_cng_dec_fx.c
index 9d6c4c756ed6d6a4a783efabaac8a5f68f1d5880..527adee5f276fc71376b0642cd0c4c110190f846 100644
--- a/lib_dec/fd_cng_dec_fx.c
+++ b/lib_dec/fd_cng_dec_fx.c
@@ -1200,7 +1200,11 @@ Word16 ApplyFdCng_fx(
                         s = s_max( s_min( s, sub( WORD32_BITS, 1 ) ), negate( sub( WORD32_BITS, 1 ) ) );
                         FOR( ; j <= hFdCngCom->part[k]; j++ )
                         {
-                            cngNoiseLevel[j] = L_shl( Mpy_32_16_1( hFdCngDec->bandNoiseShape[j], facTab[k] ), s ); /*Q31 - hFdCngDec->bandNoiseShape_exp*/
+#ifdef FIX_2041_SPECTRAL_GAPS_FOR_INACTIVE_FRAMES
+                            cngNoiseLevel[j] = L_shl_r( Mpy_32_16_r( hFdCngDec->bandNoiseShape[j], facTab[k] ), s ); /*Q31 - hFdCngDec->bandNoiseShape_exp*/
+#else
+                            cngNoiseLevel[j] = L_shl( Mpy_32_16_1( hFdCngDec->bandNoiseShape[j], facTab[k] ), s );                                            /*Q31 - hFdCngDec->bandNoiseShape_exp*/
+#endif
                             move32();
                         }
                     }
@@ -1811,7 +1815,11 @@ void perform_noise_estimation_dec_ivas_fx(
                     FOR( p = 0; p < npart; p++ )
                     {
                         temp = L_shl( msPeriodog[p], q_shift );
-                        msNoiseEst[p] = Madd_32_16( Mpy_32_16_1( msNoiseEst[p], sub( MAX_16, alpha ) ), temp, alpha ); /*Q31 - hFdCngDec->msNoiseEst_exp*/
+#ifdef FIX_2041_SPECTRAL_GAPS_FOR_INACTIVE_FRAMES
+                        msNoiseEst[p] = Madd_32_16( Mpy_32_16_r( msNoiseEst[p], sub( MAX_16, alpha ) ), temp, alpha ); /*Q31 - hFdCngDec->msNoiseEst_exp*/
+#else
+                        msNoiseEst[p] = Madd_32_16( Mpy_32_16_1( msNoiseEst[p], sub( MAX_16, alpha ) ), temp, alpha );                                        /*Q31 - hFdCngDec->msNoiseEst_exp*/
+#endif
                         move32();
                     }
                 }
@@ -1889,7 +1897,11 @@ void perform_noise_estimation_dec_ivas_fx(
                         L_tmp = L_shr( msPeriodog[p], sub( sub( 31, hFdCngDec->hFdCngCom->periodog_exp ), 4 ) );
                         IF( LT_32( L_tmp, msNoiseEst[p] ) )
                         {
+#ifdef FIX_2041_SPECTRAL_GAPS_FOR_INACTIVE_FRAMES
+                            msNoiseEst[p] = Madd_32_16( Mpy_32_16_r( msNoiseEst[p], wght ), L_tmp, (Word16) L_sub( shr( MAX_16, sub( 15, scale ) ), wght ) ); /*temp_q_msNoiseEst[p]*/
+#else
                             msNoiseEst[p] = Madd_32_16( Mpy_32_16_1( msNoiseEst[p], wght ), L_tmp, (Word16) L_sub( shr( MAX_16, sub( 15, scale ) ), wght ) ); /*temp_q_msNoiseEst[p]*/
+#endif
                             move32();
                             temp_q_msNoiseEst[p] = sub( add( hFdCngDec->msNoiseEst_exp, scale ), 15 );
                             move16();
@@ -1912,7 +1924,11 @@ void perform_noise_estimation_dec_ivas_fx(
                         L_tmp = L_shr_sat( hFdCngDec->msPeriodog_ST_fx[p], sub( hFdCngDec->msNoiseEst_exp, hFdCngDec->msPeriodog_ST_exp ) ); /*Q31 - hFdCngDec->msPeriodog_ST_exp*/
                         IF( LT_32( L_tmp, msNoiseEst[p] ) )
                         {
-                            msNoiseEst[p] = Madd_32_16( Mpy_32_16_1( msNoiseEst[p], CNA_ACT_DN_FACT_Q15 ), L_tmp, ONE_IN_Q15 - CNA_ACT_DN_FACT_Q15 ); /*Q31 - hFdCngDec->msNoiseEst_exp*/
+#ifdef FIX_2041_SPECTRAL_GAPS_FOR_INACTIVE_FRAMES
+                            msNoiseEst[p] = Madd_32_16( Mpy_32_16_r( msNoiseEst[p], CNA_ACT_DN_FACT_Q15 ), L_tmp, ONE_IN_Q15 - CNA_ACT_DN_FACT_Q15 ); /*Q31 - hFdCngDec->msNoiseEst_exp*/
+#else
+                            msNoiseEst[p] = Madd_32_16( Mpy_32_16_1( msNoiseEst[p], CNA_ACT_DN_FACT_Q15 ), L_tmp, ONE_IN_Q15 - CNA_ACT_DN_FACT_Q15 );         /*Q31 - hFdCngDec->msNoiseEst_exp*/
+#endif
                             move32();
                         }
                     }