diff --git a/lib_dec/er_dec_tcx_fx.c b/lib_dec/er_dec_tcx_fx.c
index 8c10e5f810542410d079e27227e72046a05c7921..5cc06dabf285301cae74d550d27f09128f1954d1 100644
--- a/lib_dec/er_dec_tcx_fx.c
+++ b/lib_dec/er_dec_tcx_fx.c
@@ -1168,7 +1168,7 @@ void con_tcx_ivas_fx(
         /* apply pre-emphasis to the signal */
         mem = synth[( -( ( ( L_frame / 2 ) + hTcxDec->pit_max_TCX ) + M + M ) - 1 )]; /*Q0*/
         move16();
-        Q_exc = E_UTIL_f_preemph3_ivas_fx( &( synth[-add( add( shr( L_frame, 1 ), hTcxDec->pit_max_TCX ), 2 * M )] ), st->preemph_fac, add( add( shr( L_frame, 1 ), hTcxDec->pit_max_TCX ), shl( M, 1 ) ), &mem, 1 );
+        Q_exc = E_UTIL_f_preemph3_ivas_fx( &( synth[-( ( ( L_frame / 2 ) + hTcxDec->pit_max_TCX ) + 2 * M )] ), st->preemph_fac, add( add( shr( L_frame, 1 ), hTcxDec->pit_max_TCX ), shl( M, 1 ) ), &mem, 1 );
         st->Mode2_lp_gainc = L_deposit_l( 0 );
 
         st->Mode2_lp_gainp = get_gain2( synth - shl( L_subfr, 1 ), synth - add( shl( L_subfr, 1 ), Tc ), shl( L_subfr, 1 ) );
diff --git a/lib_dec/ivas_mdct_core_dec_fx.c b/lib_dec/ivas_mdct_core_dec_fx.c
index 7f079277a5fb8b76e53ad8975ccdda0cab84849b..a5855a0f641ff4f0a61062e437db0b5e2b442e7b 100644
--- a/lib_dec/ivas_mdct_core_dec_fx.c
+++ b/lib_dec/ivas_mdct_core_dec_fx.c
@@ -1282,11 +1282,6 @@ void ivas_mdct_core_reconstruct_fx(
         ELSE /*ACELP core for ACELP-PLC */
         {
             assert( EQ_16( st->bfi, 1 ) );
-
-            Scale_sig( synth_buf_fx, add( add( st->hTcxDec->old_synth_len, L_FRAME_PLUS ), M ), sub( -2, q_syn ) );     // Q0
-            Scale_sig( synth_bufFB_fx, add( add( st->hTcxDec->old_synth_lenFB, L_FRAME_PLUS ), M ), sub( -2, q_syn ) ); // Q0
-            q_syn = -2;
-            move16();
             /* PLC: [TCX: TD PLC] */
             IF( MCT_flag != 0 )
             {
@@ -1316,11 +1311,11 @@ void ivas_mdct_core_reconstruct_fx(
 
             IF( ( EQ_16( st->nbLostCmpt, 1 ) ) || ( st->hTcxDec->tcxConceal_recalc_exc != 0 ) )
             {
-                Scale_sig( synthFB_fx - add( add( shr( st->hTcxDec->L_frameTCX, 1 ), st->hTcxDec->pit_max_TCX ), 2 * M ), add( add( shr( st->hTcxDec->L_frameTCX, 1 ), st->hTcxDec->pit_max_TCX ), 2 * M ), sub( q_syn, sub( st->Q_exc, 1 ) ) ); // 2 * q_syn - (st->Q_exc - 1)
+                Scale_sig( synthFB_fx - add( add( shr( st->hTcxDec->L_frameTCX, 1 ), st->hTcxDec->pit_max_TCX ), 2 * M ), sub( add( add( shr( st->hTcxDec->L_frameTCX, 1 ), st->hTcxDec->pit_max_TCX ), 2 * M ), 1 ), sub( q_syn, sub( st->Q_exc, 1 ) ) ); // 2 * q_syn - (st->Q_exc - 1)
             }
             ELSE
             {
-                Scale_sig( synthFB_fx - st->hTcxDec->L_frameTCX, st->hTcxDec->L_frameTCX, sub( q_syn, sub( st->Q_exc, 1 ) ) ); // 2 * q_syn - (st->Q_exc - 1)
+                Scale_sig( synthFB_fx - st->hTcxDec->L_frameTCX, sub( st->hTcxDec->L_frameTCX, 1 ), sub( q_syn, sub( st->Q_exc, 1 ) ) ); // 2 * q_syn - (st->Q_exc - 1)
             }
 
             lerp( synthFB_fx, synth_fx, st->L_frame, st->hTcxDec->L_frameTCX );