diff --git a/lib_dec/fd_cng_dec_fx.c b/lib_dec/fd_cng_dec_fx.c
index 2f9c567c101b0d086a80f829fffd21a3b36c501c..4c42a795997fa4bcc4b1372ce91ec35361e16bb3 100644
--- a/lib_dec/fd_cng_dec_fx.c
+++ b/lib_dec/fd_cng_dec_fx.c
@@ -1531,7 +1531,15 @@ Word16 ApplyFdCng_ivas_fx(
                 move16();
                 /* This sets the new CNG levels until a SID update overwrites it */
                 Copy32( hFdCngDec->bandNoiseShape, cngNoiseLevel, sub( hFdCngCom->stopFFTbin, hFdCngCom->startBand ) ); /* This sets the new CNG levels until a SID update overwrites it */ /*Q31 - hFdCngDec->bandNoiseShape_exp*/
-                *cngNoiseLevel_exp = hFdCngDec->bandNoiseShape_exp;
+
+                Word16 shift1 = L_norm_arr( cngNoiseLevel, sub( hFdCngCom->stopFFTbin, hFdCngCom->startBand ) );
+                Word16 shift2 = L_norm_arr( cngNoiseLevel + sub( hFdCngCom->stopFFTbin, hFdCngCom->startBand ), sub( FFTCLDFBLEN, sub( hFdCngCom->stopFFTbin, hFdCngCom->startBand ) ) );
+                Word16 shift = s_max( sub( hFdCngDec->bandNoiseShape_exp, shift1 ), sub( *cngNoiseLevel_exp, shift2 ) );
+
+                scale_sig32( cngNoiseLevel, sub( hFdCngCom->stopFFTbin, hFdCngCom->startBand ), sub( sub( hFdCngDec->bandNoiseShape_exp, shift1 ), shift ) );
+                scale_sig32( cngNoiseLevel + sub( hFdCngCom->stopFFTbin, hFdCngCom->startBand ), sub( FFTCLDFBLEN, sub( hFdCngCom->stopFFTbin, hFdCngCom->startBand ) ), sub( sub( *cngNoiseLevel_exp, shift2 ), shift ) );
+
+                *cngNoiseLevel_exp = shift;
                 move16();
 
                 /*st->cngTDLevel = (float)sqrt( (sumFLOAT(cngNoiseLevel, hFdCngCom->stopFFTbin - hFdCngCom->startBand) / 2 * hFdCngCom->fftlen) / st->Mode2_L_frame);*/
@@ -5059,7 +5067,14 @@ void FdCng_decodeSID_ivas_fx(
     }
 
     scalebands( sidNoiseEst, hFdCngCom->part, hFdCngCom->npart, hFdCngCom->midband, hFdCngCom->nFFTpart, sub( hFdCngCom->stopBand, hFdCngCom->startBand ), hFdCngCom->cngNoiseLevel, 1 );
-    hFdCngCom->cngNoiseLevelExp = hFdCngCom->sidNoiseEstExp;
+    Word16 shift1 = L_norm_arr( hFdCngCom->cngNoiseLevel, sub( hFdCngCom->stopBand, hFdCngCom->startBand ) );
+    Word16 shift2 = L_norm_arr( hFdCngCom->cngNoiseLevel + sub( hFdCngCom->stopBand, hFdCngCom->startBand ), sub( FFTCLDFBLEN, sub( hFdCngCom->stopBand, hFdCngCom->startBand ) ) );
+    Word16 shift = s_max( sub( hFdCngCom->sidNoiseEstExp, shift1 ), sub( hFdCngCom->cngNoiseLevelExp, shift2 ) );
+
+    scale_sig32( hFdCngCom->cngNoiseLevel, sub( hFdCngCom->stopBand, hFdCngCom->startBand ), sub( sub( hFdCngCom->sidNoiseEstExp, shift1 ), shift ) );
+    scale_sig32( hFdCngCom->cngNoiseLevel + sub( hFdCngCom->stopBand, hFdCngCom->startBand ), sub( FFTCLDFBLEN, sub( hFdCngCom->stopBand, hFdCngCom->startBand ) ), sub( sub( hFdCngCom->cngNoiseLevelExp, shift2 ), shift ) );
+
+    hFdCngCom->cngNoiseLevelExp = shift;
     move16();
 
     lpc_from_spectrum( hFdCngCom, hFdCngCom->startBand, hFdCngCom->stopFFTbin, st->preemph_fac );
diff --git a/lib_dec/ivas_ism_dtx_dec_fx.c b/lib_dec/ivas_ism_dtx_dec_fx.c
index 0f023a7efd080f499328b709895092c92b8c95fc..73ea5cd1f27289546002cddce0f3de1f71654c66 100644
--- a/lib_dec/ivas_ism_dtx_dec_fx.c
+++ b/lib_dec/ivas_ism_dtx_dec_fx.c
@@ -181,7 +181,12 @@ void ivas_ism_dtx_limit_noise_energy_for_near_silence_fx(
             cng_noise_nrg_obj_fx = dotp_fixed_o( hFdCngCom->cngNoiseLevel, hFdCngCom->cngNoiseLevel, cng_noise_level_len, 9, &Q_cng_noise_nrg_obj ); /*Resultant Q_cng_noise_nrg_obj= (Q_cng_noise_nrg_obj-x)<=31*/
             IF( GT_32( cng_noise_nrg_obj_fx, cng_noise_nrg_dominant_fx ) )
             {
-                Word32 temp = divide3232( L_shr( cng_noise_nrg_dominant_fx, 1 ), cng_noise_nrg_obj_fx );   /*Stores value of cng_noise_nrg_dominant_fx/cng_noise_nrg_obj_fx*/
+                Word32 temp = 0;
+                move32();
+                IF( L_shr( cng_noise_nrg_dominant_fx, 1 ) )
+                {
+                    temp = divide3232( L_shr( cng_noise_nrg_dominant_fx, 1 ), cng_noise_nrg_obj_fx ); /*Stores value of cng_noise_nrg_dominant_fx/cng_noise_nrg_obj_fx*/
+                }
                 Word16 Q_temp = add( sub( sub( Q_cng_noise_nrg_dominant, 1 ), Q_cng_noise_nrg_obj ), 15 ); /*Stores resultant Q after divide3232 operation above*/
                 IF( EQ_16( Q_temp % 2, 1 ) )                                                               /*Making Q_temp even for sqrt function*/
                 {