diff --git a/lib_rend/ivas_reverb_fx.c b/lib_rend/ivas_reverb_fx.c
index 5156911f327f550c558d1169dad100ffb7afde06..3a03377722135aa5a74d2f6c2569e593ea6d604f 100644
--- a/lib_rend/ivas_reverb_fx.c
+++ b/lib_rend/ivas_reverb_fx.c
@@ -2427,7 +2427,6 @@ ivas_error ivas_binaural_reverb_init(
     Word32 ene[CLDFB_NO_CHANNELS_MAX];
     Word16 preDelay;
 #ifdef FIX_1831_REVERB_REGRESSION
-    Word16 temp16, s;
     Word32 temp32;
 #endif
 
@@ -2447,12 +2446,10 @@ ivas_error ivas_binaural_reverb_init(
         }
 
 #ifdef FIX_1831_REVERB_REGRESSION
-        temp16 = BASOP_Util_Divide3216_Scale( 48000, CLDFB_NO_CHANNELS_MAX, &s );
-        temp16 = shl( temp16, s );                                            // Q0
-        temp32 = Mult_32_16( roomAcoustics->acousticPreDelay_fx, temp16 );    // Q11
-        preDelay = extract_l( L_shr( L_add( temp32, L_shl( 1, 10 ) ), 11 ) ); // Q0
+        temp32 = Mult_32_16( roomAcoustics->acousticPreDelay_fx, ( ( IVAS_48k / CLDFB_NO_CHANNELS_MAX ) >> 1 ) ); // Q11
+        preDelay = extract_l( L_shr( L_add( temp32, L_shl( 1, 10 ) ), 11 ) );                                     // Q0
 #else
-        preDelay = (int16_t) roundf( 48000.0f * roomAcoustics->acousticPreDelay / CLDFB_NO_CHANNELS_MAX );
+        preDelay = (int16_t) roundf( ( 48000.0f / CLDFB_NO_CHANNELS_MAX ) * roomAcoustics->acousticPreDelay );
 #endif
 #ifdef FIX_1741_REVERB_TIMES_Q_FORMAT
         floatToFixed_arrL( t60_temp, t60, Q26, CLDFB_NO_CHANNELS_MAX );