diff --git a/lib_com/ivas_cnst.h b/lib_com/ivas_cnst.h
index 6cfb9fb3053fb67be98c7b08e5814522ed70b84b..6d37913a10de26210f474943cf6e215f94289e13 100644
--- a/lib_com/ivas_cnst.h
+++ b/lib_com/ivas_cnst.h
@@ -1004,7 +1004,11 @@ enum
 
 /* IVAS PCA */
 #define IVAS_PCA_NB_SUBR                        20 /* 80 -> 0.25 ms, 40 -> 0.5 ms... */
+#ifdef SPAR_SCALING_HARMONIZATION
+#define IVAS_PCA_COV_THRES                      3e-5f
+#else
 #define IVAS_PCA_COV_THRES                      1e-9f
+#endif
 #define IVAS_PCA_QUAT_EPS                       1e-7f
 #define IVAS_PCA_QBITS                          19
 #define IVAS_PCA_N1                             91
diff --git a/lib_dec/ivas_spar_decoder.c b/lib_dec/ivas_spar_decoder.c
index 4f48e10a09e080c795319e3768711938bac21f78..493ca539a0a0d7452eb486b98fb0a807468ba294 100644
--- a/lib_dec/ivas_spar_decoder.c
+++ b/lib_dec/ivas_spar_decoder.c
@@ -971,22 +971,10 @@ void ivas_spar_dec_upmixer(
 
     if ( hSpar->hPCA != NULL )
     {
-#ifdef SPAR_SCALING_HARMONIZATION
-        for ( out_ch = 0; out_ch < num_in_ingest; out_ch++ )
-        {
-            v_multc( output[out_ch], MDFT_NORM_SCALING, output[out_ch], output_frame );
-        }
-#endif
         ivas_pca_dec( hSpar->hPCA, output_frame, num_in_ingest, hDecoderConfig->ivas_total_brate, hDecoderConfig->last_ivas_total_brate, st_ivas->bfi, output );
 #ifdef DEBUG_SBA_AUDIO_DUMP
         /* Dump audio signal after ivas_pca_dec */
         ivas_spar_dump_signal_wav( output_frame, NULL, output, num_in_ingest, spar_foa_dec_wav[2], "ivas_pca_dec()" );
-#endif
-#ifdef SPAR_SCALING_HARMONIZATION
-        for ( out_ch = 0; out_ch < num_in_ingest; out_ch++ )
-        {
-            v_multc( output[out_ch], PCM16_TO_FLT_FAC, output[out_ch], output_frame );
-        }
 #endif
     }
 
diff --git a/lib_enc/ivas_spar_encoder.c b/lib_enc/ivas_spar_encoder.c
index 6e05d741ad4db79e169bdbc9c21d9489a222cc7a..46e957a3f10e1dfb8336707dbd9a4128ce789e4f 100644
--- a/lib_enc/ivas_spar_encoder.c
+++ b/lib_enc/ivas_spar_encoder.c
@@ -789,19 +789,7 @@ static ivas_error ivas_spar_enc_process(
 
     if ( hSpar->hPCA != NULL )
     {
-#ifdef SPAR_SCALING_HARMONIZATION
-        for ( int16_t out_ch = 0; out_ch < FOA_CHANNELS; out_ch++ )
-        {
-            v_multc( p_pcm_tmp[out_ch], MDFT_NORM_SCALING, p_pcm_tmp[out_ch], input_frame );
-        }
-#endif
         ivas_pca_enc( hEncoderConfig, hSpar->hPCA, hMetaData, p_pcm_tmp, input_frame, FOA_CHANNELS );
-#ifdef SPAR_SCALING_HARMONIZATION
-        for ( int16_t out_ch = 0; out_ch < FOA_CHANNELS; out_ch++ )
-        {
-            v_multc( p_pcm_tmp[out_ch], PCM16_TO_FLT_FAC, p_pcm_tmp[out_ch], input_frame );
-        }
-#endif
     }
     else
     {