diff --git a/lib_com/hp50_fx.c b/lib_com/hp50_fx.c
old mode 100644
new mode 100755
index d6a1182a4e9aa45305e27197e88260cf78d0d7e2..535c22942fb9d4a971e874de88ed441b68ffff25
--- a/lib_com/hp50_fx.c
+++ b/lib_com/hp50_fx.c
@@ -514,6 +514,9 @@ void hp20_fx_32(
     return;
 }
 #else
+#define SPEEDUP_1_hp20_fx_32
+#define SPEEDUP_2_hp20_fx_32
+
 void hp20_fx_32(
     Word32 signal_fx[],
     const Word16 lg,
@@ -596,9 +599,14 @@ void hp20_fx_32(
             move16();
         }
         Qy1 = sub( Qy1, 34 );
+
+#ifdef SPEEDUP_1_hp20_fx_32
+
+
+#else
         R1 = W_mult0_32_32( W_shl_sat_l( y1_fx64, Qy1 ), a1_fx );
         Qy1 = add( Qy1, Qprev_y1 );
-
+#endif
         Qy2 = W_norm( y2_fx64 );
         if ( y2_fx64 == 0 )
         {
@@ -606,9 +614,13 @@ void hp20_fx_32(
             move16();
         }
         Qy2 = sub( Qy2, 34 );
+
+#ifdef SPEEDUP_1_hp20_fx_32
+
+#else
         R2 = W_mult0_32_32( W_shl_sat_l( y2_fx64, Qy2 ), a2_fx );
         Qy2 = add( Qy2, Qprev_y2 );
-
+#endif
         Qx0 = W_norm( x0_fx64 );
         if ( x0_fx64 == 0 )
         {
@@ -616,8 +628,10 @@ void hp20_fx_32(
             move16();
         }
         Qx0 = sub( Qx0, 34 );
-        R3 = W_mult0_32_32( W_shl_sat_l( x0_fx64, Qx0 ), b2_fx );
 
+#ifndef SPEEDUP_1_hp20_fx_32
+        R3 = W_mult0_32_32( W_shl_sat_l( x0_fx64, Qx0 ), b2_fx );
+#endif
         Qx1 = W_norm( x1_fx64 );
         if ( x1_fx64 == 0 )
         {
@@ -625,8 +639,9 @@ void hp20_fx_32(
             move16();
         }
         Qx1 = sub( Qx1, 34 );
+#ifndef SPEEDUP_1_hp20_fx_32
         R4 = W_mult0_32_32( W_shl_sat_l( x1_fx64, Qx1 ), b1_fx );
-
+#endif
         Qx2 = W_norm( x2_fx64 );
         if ( x2_fx64 == 0 )
         {
@@ -634,18 +649,52 @@ void hp20_fx_32(
             move16();
         }
         Qx2 = sub( Qx2, 34 );
+#ifndef SPEEDUP_1_hp20_fx_32
         R5 = W_mult0_32_32( W_shl_sat_l( x2_fx64, Qx2 ), b2_fx );
+#endif
+#ifdef SPEEDUP_1_hp20_fx_32
 
+        Qmin = s_min( add( Qy1, Qprev_y1 ), add( Qy2, Qprev_y2 ) );
+
+#ifdef SPEEDUP_2_hp20_fx_32
+        R1 = W_mult0_32_32( W_shl_sat_l( y1_fx64, sub( Qy1, sub( add( Qy1, Qprev_y1 ), Qmin ) ) ), a1_fx );
+#else
+        R1 = W_shr( W_mult0_32_32( W_shl_sat_l( y1_fx64, Qy1 ), a1_fx ), sub( add( Qy1, Qprev_y1 ), Qmin ) );
+#endif
+#ifdef SPEEDUP_2_hp20_fx_32_
+        R2 = W_mult0_32_32( W_shl_sat_l( y2_fx64, sub( Qy2, sub( add( Qy2, Qprev_y2 ), Qmin ) ) ), a2_fx );
+#else
+        R2 = W_shr( W_mult0_32_32( W_shl_sat_l( y2_fx64, Qy2 ), a2_fx ), sub( add( Qy2, Qprev_y2 ), Qmin ) );
+#endif
+        y0_fx64 = W_add( R1, R2 );
+
+
+        Qmin = s_min( Qmin, Qx0 );
+        Qmin = s_min( Qmin, Qx1 );
+        Qmin = s_min( Qmin, Qx2 );
+
+#ifdef SPEEDUP_2_hp20_fx_32
+        R3 = W_shr( W_mult0_32_32( W_shl_sat_l( x0_fx64, sub( Qx0, sub( Qx0, Qmin ) ) ), b2_fx ), 0 );
+        R4 = W_shr( W_mult0_32_32( W_shl_sat_l( x1_fx64, sub( Qx1, sub( Qx1, Qmin ) ) ), b1_fx ), 0 );
+        R5 = W_shr( W_mult0_32_32( W_shl_sat_l( x2_fx64, sub( Qx2, sub( Qx2, Qmin ) ) ), b2_fx ), 0 );
+#else
+        R3 = W_shr( W_mult0_32_32( W_shl_sat_l( x0_fx64, Qx0 ), b2_fx ), sub( Qx0, Qmin ) );
+        R4 = W_shr( W_mult0_32_32( W_shl_sat_l( x1_fx64, Qx1 ), b1_fx ), sub( Qx1, Qmin ) );
+        R5 = W_shr( W_mult0_32_32( W_shl_sat_l( x2_fx64, Qx2 ), b2_fx ), sub( Qx2, Qmin ) );
+#endif
+        y0_fx64 = W_add( W_shr( y0_fx64, sub( s_min( add( Qy1, Qprev_y1 ), add( Qy2, Qprev_y2 ) ), Qmin ) ), W_add( R3, W_add( R4, R5 ) ) );
+#else
         Qmin = s_min( Qy1, Qy2 );
 
         y0_fx64 = W_add( W_shr( R1, sub( Qy1, Qmin ) ), W_shr( R2, sub( Qy2, Qmin ) ) );
 
+
         Qmin = s_min( Qmin, Qx0 );
         Qmin = s_min( Qmin, Qx1 );
         Qmin = s_min( Qmin, Qx2 );
 
         y0_fx64 = W_add( W_shr( y0_fx64, sub( s_min( Qy1, Qy2 ), Qmin ) ), W_add( W_shr( R3, sub( Qx0, Qmin ) ), W_add( W_shr( R4, sub( Qx1, Qmin ) ), W_shr( R5, sub( Qx2, Qmin ) ) ) ) );
-
+#endif
         y0_fx64 = W_shr( y0_fx64, 29 );
 
         signal_fx[i] = W_extract_l( W_shr( y0_fx64, Qmin ) );