diff --git a/lib_enc/analy_sp_fx.c b/lib_enc/analy_sp_fx.c
index bd4ad12baacc041127dcb70ac9d7a155cef68478..4f96ea2d4872231719e0fdf89912fbdbfec04b0c 100644
--- a/lib_enc/analy_sp_fx.c
+++ b/lib_enc/analy_sp_fx.c
@@ -494,9 +494,9 @@ void ivas_analy_sp_fx(
         }
         ELSE
         {
-            Word16 scale = 0;
+            Word16 scale = 0, shift;
             move16();
-
+            shift = s_min( norm_arr( speech + 3 * ( L_SUBFR / 2 ) - L_FFT / 2, L_FFT ), norm_arr( speech + 7 * ( L_SUBFR / 2 ) - L_FFT / 2, L_FFT ) );
             FOR( i_subfr = 0; i_subfr <= 1; i_subfr++ )
             {
                 /* set pointer to the beginning of the signal for spectral analysis */
@@ -507,27 +507,26 @@ void ivas_analy_sp_fx(
                     /* set the pointer for second analysis window */
                     pt = speech + 7 * ( L_SUBFR / 2 ) - L_FFT / 2;
                 }
-
                 /* Clear 1st value of 1st part, copy 1st value of 2nd part */
                 pt_fft[0] = 0;
                 move16();
-                pt_fft[L_FFT / 2] = pt[L_FFT / 2]; // Q_new - preemph_bits
+                pt_fft[L_FFT / 2] = shl( pt[L_FFT / 2], shift ); // (Q_new + shift) - preemph_bits
                 move16();
 
                 FOR( i = 1; i < L_FFT / 2; i++ )
                 {
                     /* 1st windowed part */
-                    pt_fft[i] = mult_r( pt[i], sqrt_han_window_fx[i] ); // Q_new - preemph_bits
+                    pt_fft[i] = mult_r( shl( pt[i], shift ), sqrt_han_window_fx[i] ); // (Q_new + shift) - preemph_bits
                     move16();
 
                     /* 2nd windowed part  */
-                    pt_fft[L_FFT - i] = mult_r( pt[L_FFT - i], sqrt_han_window_fx[i] ); // Q_new - preemph_bits
+                    pt_fft[L_FFT - i] = mult_r( shl( pt[L_FFT - i], shift ), sqrt_han_window_fx[i] ); // (Q_new + shift) - preemph_bits
                     move16();
                 }
 
                 /* compute the spectrum */
                 fft_rel_16_32fx( pt_fft, &scale, i_subfr, L_FFT, LOG2_L_FFT );
-                *q_fft_buff = add( Q_new, scale ); // resultant q for fft_buff
+                *q_fft_buff = add( add( Q_new, shift ), scale ); // resultant q for fft_buff
                 move16();
                 IF( EQ_16( i_subfr, 1 ) )
                 {