Commit 5a66ba75 authored by Anjaneyulu Sana's avatar Anjaneyulu Sana
Browse files

Updates for ivas_analy_sp_fx to improve precision

parent 41f49e06

lib_enc/analy_sp_fx.c

+2 −2
Original line number Diff line number Diff line
@@ -634,14 +634,14 @@ void ivas_analy_sp_fx( 
    move32();

    Bin_E[L_FFT - 1] = Bin_E[L_FFT - 2]; // *q_Bin_E

    move32();



    Word32 add_const = 21475; // 1e-5 in Q31

    FOR( i = 0; i < L_FFT / 2; i++ )

    {

        Bin_E_old[i] = Bin_E[i]; // *q_Bin_E

        move32();



        /* PS[i] = ( Bin_E[i] + 1e-5f + Bin_E[i + L_FFT / 2] + 1e-5f ) / 2.0f; */

        PS[i] = W_extract_h( W_mac_32_32( W_mult_32_32( Bin_E[i], ONE_IN_Q30 ), Bin_E[i + L_FFT / 2], ONE_IN_Q30 ) ); // *q_Bin_E

        PS[i] = W_extract_h( W_add( W_mac_32_32( W_mult_32_32( Bin_E[i], ONE_IN_Q30 ), Bin_E[i + L_FFT / 2], ONE_IN_Q30 ), W_shr( W_shl( add_const, 32 ), sub( 31, *q_Bin_E ) ) ) ); // *q_Bin_E

        move32();



        /* Bin_E[i] = (float) ( 10.0f * log( PS[i] ) ); */