diff --git a/lib_com/ivas_transient_det_fx.c b/lib_com/ivas_transient_det_fx.c
index fb8679ebc8e218ddcf1ce12ad0bcc59dcc899a35..02f8713a821a2a766840ec564567c474183eddba 100644
--- a/lib_com/ivas_transient_det_fx.c
+++ b/lib_com/ivas_transient_det_fx.c
@@ -43,8 +43,12 @@
  * Local constants
  *------------------------------------------------------------------------------------------*/
 
-#define IVAS_TDET_PARM_ENV_EPS    ( 1e-5f )
-#define IVAS_TDET_PARM_ENV_EPS_fx 21474 // Q31
+#define IVAS_TDET_PARM_ENV_EPS ( 1e-5f )
+#ifndef OPT_SBA_DEC_PATH
+#define IVAS_TDET_PARM_ENV_EPS_fx 21474          // Q31
+#else                                            /* OPT_SBA_DEC_PATH */
+#define IVAS_TDET_PARM_ENV_EPS_fx ( 1407374884 ) // Q47
+#endif                                           /* OPT_SBA_DEC_PATH */
 
 #define IVAS_TDET_DUCK_MULT_FAC   ( 590558003 ) // Q29
 #define IVAS_TDET_PARM_TRANS_THR  ( 107374182 ) // Q30
@@ -403,8 +407,19 @@ void ivas_td_decorr_get_ducking_gains_fx(
     FOR( i = 0; i < frame_len; i++ )
     {
         // e_fast_fx[i] = L_add( L_abs( e_fast_fx[i] ), L_shr( IVAS_TDET_PARM_ENV_EPS_fx, q_factor_diff ) ); /*Q14*/
+#ifndef OPT_SBA_DEC_PATH
         e_fast_fx[i] = BASOP_Util_Add_Mant32Exp( L_abs( e_fast_fx[i] ), e_fast_e[i], IVAS_TDET_PARM_ENV_EPS_fx, 0, &e_fast_e[i] );
         move32();
+#else  /* OPT_SBA_DEC_PATH */
+        Word32 tmp = L_abs( e_fast_fx[i] );
+        Word16 nrm = norm_l( tmp );
+        Word16 max_e = s_max( sub( e_fast_e[i], nrm ), 31 - 47 );
+        max_e = add( max_e, 1 ); // 1 for headroom
+        e_fast_fx[i] = L_add( L_shr( tmp, sub( max_e, e_fast_e[i] ) ), L_shr( IVAS_TDET_PARM_ENV_EPS_fx, sub( max_e, 31 - 47 ) ) );
+        move32();
+        e_fast_e[i] = max_e;
+        move16();
+#endif /* OPT_SBA_DEC_PATH */
         e_slow_fx[i] = e_fast_fx[i];
         move32();
         e_slow_e[i] = e_fast_e[i];
diff --git a/lib_com/options.h b/lib_com/options.h
index a5d5a4846c8ca6a0005aa7ef7bd9e2c4e3582dbd..f685c5541e6927fac9c1a050190a8d621a2cd732 100644
--- a/lib_com/options.h
+++ b/lib_com/options.h
@@ -106,4 +106,6 @@
 
 #define FIX_1713_EXP                            /* VA: proposed correction to exp in ic-BWE*/
 
+#define OPT_SBA_DEC_PATH
+
 #endif