diff --git a/lib_com/cnst.h b/lib_com/cnst.h
index 8e4c7c99083c6f3304101a18f80410f196ec2a7e..40a4710579dd35f964601e1becd5fa77e89dd6a6 100644
--- a/lib_com/cnst.h
+++ b/lib_com/cnst.h
@@ -67,8 +67,7 @@
 #define MAX16B_FLT                      32767.0f
 #define MIN16B_FLT                      ( -32768.0f )
 #define PCM16_TO_FLT_FAC                32768.0f
-
-
+#define MDFT_NORM_SCALING               ( 1.0f / PCM16_TO_FLT_FAC )
 #define MAX_FRAME_COUNTER               200
 #define MAX_BITS_PER_FRAME              10240           /* Bits per frame for max. bitrate 512kbps */
 
diff --git a/lib_com/ivas_prot.h b/lib_com/ivas_prot.h
index 9c3cd6710c709fd9d87257482b9fd72fb0973af3..bf747a0de37a0148d9eaa9868105f37208e0aaa2 100644
--- a/lib_com/ivas_prot.h
+++ b/lib_com/ivas_prot.h
@@ -3717,7 +3717,9 @@ void ivas_spar_config(
 void ivas_sba_upmixer_renderer(
     Decoder_Struct *st_ivas,                                    /* i/o: IVAS decoder struct                     */
     float output[][L_FRAME48k],                                 /* i/o: transport/output audio channels         */
+#ifndef SPAR_SCALING_HARMONIZATION
     const int16_t nchan_remapped,                               /* i  : num channels after remapping of TCs     */
+#endif
     const int16_t output_frame                                  /* i  : output frame length                     */
 );
 
diff --git a/lib_com/options.h b/lib_com/options.h
index a1981a5e79fa66c55ac728690bb964d92b805b1a..b9132829bb7dc43ee1d9cbed1d9f91beb4190a9a 100644
--- a/lib_com/options.h
+++ b/lib_com/options.h
@@ -158,6 +158,7 @@
 #define NTT_UPDATE_ITD_SW                               /* contribution 4: Update of ITD switch in stereo downmix for EVS */
 #define NTT_REMOVE_EPS_ROM                              /* contribution 4: Reduction of ROM size in stereo downmix for EVS */
 
+#define SPAR_SCALING_HARMONIZATION                      /* issue 80: Changes to harmonize scaling in spar */
 /* ################## End DEVELOPMENT switches ######################### */
 /* clang-format on */
 #endif
diff --git a/lib_dec/ivas_dec.c b/lib_dec/ivas_dec.c
index a103c9f45fabbda0bcaebb580ae9164007c10eeb..b9923a87e7c79c865ccb7925abe14b941a4e6019 100644
--- a/lib_dec/ivas_dec.c
+++ b/lib_dec/ivas_dec.c
@@ -345,7 +345,11 @@ ivas_error ivas_dec(
         }
         else /* SBA_MODE_SPAR */
         {
-            ivas_sba_upmixer_renderer( st_ivas, output, nchan_remapped, output_frame ); /* Note: ivas_sba_linear_renderer() or ivas_dirac_dec() are called internally */
+            ivas_sba_upmixer_renderer( st_ivas, output,
+#ifndef SPAR_SCALING_HARMONIZATION
+                                       nchan_remapped,
+#endif
+                                       output_frame ); /* Note: ivas_sba_linear_renderer() or ivas_dirac_dec() are called internally */
         }
     }
     else if ( st_ivas->ivas_format == MC_FORMAT )
diff --git a/lib_dec/ivas_sba_rendering.c b/lib_dec/ivas_sba_rendering.c
index 5552c26a50f20ae1596834c35c2b4422f034ed47..3bcf4d3884aafb30aeb49ed5eec8a8dc77de0dab 100755
--- a/lib_dec/ivas_sba_rendering.c
+++ b/lib_dec/ivas_sba_rendering.c
@@ -205,11 +205,17 @@ static void ivas_sba_mtx_mult(
 void ivas_sba_upmixer_renderer(
     Decoder_Struct *st_ivas,      /* i/o: IVAS decoder struct                 */
     float output[][L_FRAME48k],   /* i/o: transport/output audio channels     */
+#ifndef SPAR_SCALING_HARMONIZATION
     const int16_t nchan_remapped, /* i  : num channels after remapping of TCs */
+#endif
     const int16_t output_frame    /* i  : output frame length                 */
 )
 {
+#ifdef SPAR_SCALING_HARMONIZATION
+    int16_t i;
+#else
     int16_t i, ch, nchan_out;
+#endif
     float temp;
     int16_t nchan_internal;
 
@@ -220,8 +226,11 @@ void ivas_sba_upmixer_renderer(
 #else
     nchan_internal = ivas_sba_get_nchan_metadata( st_ivas->sba_analysis_order );
 #endif
-    nchan_out = st_ivas->hDecoderConfig->nchan_out;
 
+#ifndef SPAR_SCALING_HARMONIZATION
+    nchan_out = st_ivas->hDecoderConfig->nchan_out;
+#endif
+#ifndef SPAR_SCALING_HARMONIZATION
     for ( ch = 0; ch < nchan_remapped; ch++ )
     {
         for ( i = 0; i < output_frame; i++ )
@@ -241,6 +250,7 @@ void ivas_sba_upmixer_renderer(
             output[ch][i] = temp;
         }
     }
+#endif
 
     if ( st_ivas->nchan_transport >= 3 )
     {
@@ -261,6 +271,7 @@ void ivas_sba_upmixer_renderer(
         ivas_sba_linear_renderer( output, output_frame, st_ivas->hIntSetup.nchan_out_woLFE, st_ivas->hDecoderConfig->output_config, st_ivas->hOutSetup, st_ivas->hoa_dec_mtx );
     }
 
+#ifndef SPAR_SCALING_HARMONIZATION
     for ( ch = 0; ch < nchan_out; ch++ )
     {
         for ( i = 0; i < output_frame; i++ )
@@ -268,6 +279,7 @@ void ivas_sba_upmixer_renderer(
             output[ch][i] = output[ch][i] * PCM16_TO_FLT_FAC;
         }
     }
+#endif
 
 
     wmops_sub_end();
diff --git a/lib_dec/ivas_spar_decoder.c b/lib_dec/ivas_spar_decoder.c
index f2b8f4926a477947e324ef808f2354636f732018..001f14c91c4585b9a35c2c7daa1ff7acb42aab2e 100755
--- a/lib_dec/ivas_spar_decoder.c
+++ b/lib_dec/ivas_spar_decoder.c
@@ -973,20 +973,32 @@ void ivas_spar_dec_upmixer(
     /*---------------------------------------------------------------------*
      * PCA decoder
      *---------------------------------------------------------------------*/
-
 #ifdef DEBUG_SBA_AUDIO_DUMP
     pState->pca_ingest_channels = num_in_ingest;
 #endif
 
     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
     }
 
+
     /*---------------------------------------------------------------------*
      * TD decorrelation
      *---------------------------------------------------------------------*/
diff --git a/lib_enc/ivas_agc_enc.c b/lib_enc/ivas_agc_enc.c
index 493d1ac07118e67371f3d44eb9dc654166cfd257..c3c68efc726d155ba7c85d3a2d8a6b9959ff0f36 100644
--- a/lib_enc/ivas_agc_enc.c
+++ b/lib_enc/ivas_agc_enc.c
@@ -242,7 +242,11 @@ void ivas_agc_enc_process(
 
             if ( !isClipped )
             {
+#ifdef SPAR_SCALING_HARMONIZATION
+                if ( ( ppPcm_out[i][j] > ( 1.f - pState->minDelta ) * PCM16_TO_FLT_FAC ) || ( ppPcm_out[i][j] < MIN16B_FLT ) )
+#else
                 if ( ( ppPcm_out[i][j] > ( 1.f - pState->minDelta ) ) || ( ppPcm_out[i][j] < -1.f ) )
+#endif
                 {
                     if ( j < offset )
                     {
@@ -278,7 +282,11 @@ void ivas_agc_enc_process(
 
                 maxGain = max( smoothedMaxAbsVal, MaxAbsVal ) * pState->gain_state[i].lastGain * 2.f;
 
+#ifdef SPAR_SCALING_HARMONIZATION
+                if ( maxGain < ( 1.f - pState->minDelta ) * PCM16_TO_FLT_FAC )
+#else
                 if ( maxGain < 1.f - pState->minDelta )
+#endif
                 {
                     pState->gain_state[i].gainExpVal = -1;
                 }
@@ -313,7 +321,11 @@ void ivas_agc_enc_process(
                 {
                     int16_t isCompensated = FALSE;
                     pState->gain_data[i].gainException = FALSE;
+#ifdef SPAR_SCALING_HARMONIZATION
+                    pState->gain_state[i].gainExpVal = (int16_t) ceilf( -logf( actualMaxAbsVal * MDFT_NORM_SCALING ) / logf( pState->agc_com.winFunc[MaxAbsValIdx] ) );
+#else
                     pState->gain_state[i].gainExpVal = (int16_t) ceilf( -logf( actualMaxAbsVal ) / logf( pState->agc_com.winFunc[MaxAbsValIdx] ) );
+#endif
 
                     while ( !isCompensated )
                     {
@@ -324,7 +336,11 @@ void ivas_agc_enc_process(
                         {
                             tmpSignal = ppPcm_out[i][idx] * powf( pState->agc_com.winFunc[idx], (float) pState->gain_state[i].gainExpVal );
 
+#ifdef SPAR_SCALING_HARMONIZATION
+                            if ( ( tmpSignal > ( 1.f - pState->minDelta ) * PCM16_TO_FLT_FAC ) || ( tmpSignal < MIN16B_FLT ) )
+#else
                             if ( ( tmpSignal > ( 1.f - pState->minDelta ) ) || ( tmpSignal < -1.f ) )
+#endif
                             {
                                 isCompensated = FALSE;
                                 break;
@@ -374,7 +390,11 @@ void ivas_agc_enc_process(
             }
             else
             {
+#ifdef SPAR_SCALING_HARMONIZATION
+                pState->gain_state[i].gainExpVal = (int16_t) ( -floorf( -logf( ( actualMaxAbsVal + pState->minDelta ) * MDFT_NORM_SCALING ) * INV_LOG_2 ) );
+#else
                 pState->gain_state[i].gainExpVal = (int16_t) ( -floorf( -logf( actualMaxAbsVal + pState->minDelta ) * INV_LOG_2 ) );
+#endif
                 pState->gain_state[i].gainExpVal = min( gainExpValMaxRange, pState->gain_state[i].gainExpVal );
 
                 gain = powf( 2.0f, -1.0f * pState->gain_state[i].gainExpVal );
diff --git a/lib_enc/ivas_spar_encoder.c b/lib_enc/ivas_spar_encoder.c
index 0e4fd817c74556bbedb6375829a61a4b737ec827..abe392c390b0186d0c62cc1a0167aa8ed900d5b4 100644
--- a/lib_enc/ivas_spar_encoder.c
+++ b/lib_enc/ivas_spar_encoder.c
@@ -291,7 +291,9 @@ ivas_error ivas_spar_enc(
 )
 {
     ENCODER_CONFIG_HANDLE hEncoderConfig;
-    int16_t i, ch;
+#ifndef SPAR_SCALING_HARMONIZATION
+    int16_t ch;
+#endif
     ivas_error error;
 
     error = IVAS_ERR_OK;
@@ -303,14 +305,13 @@ ivas_error ivas_spar_enc(
         return error;
     }
 
+#ifndef SPAR_SCALING_HARMONIZATION
     /* normalize input channels */
     for ( ch = 0; ch < hEncoderConfig->nchan_inp; ch++ )
     {
-        for ( i = 0; i < input_frame; i++ )
-        {
-            data_f[ch][i] *= ( 1.0 / PCM16_TO_FLT_FAC );
-        }
+        v_multc( data_f[ch], MDFT_NORM_SCALING, data_f[ch], input_frame );
     }
+#endif
 
     if ( hEncoderConfig->sba_planar )
     {
@@ -817,7 +818,19 @@ static ivas_error ivas_spar_enc_process(
 
     if ( hSpar->hPCA != NULL )
     {
+#ifdef SPAR_SCALING_HARMONIZATION
+        for ( int 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 ( int 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
     {
@@ -912,7 +925,11 @@ static ivas_error ivas_spar_enc_process(
     {
         for ( j = 0; j < nchan_transport; j++ )
         {
+#ifndef SPAR_SCALING_HARMONIZATION
             data_f[order[j]][i] = p_pcm_tmp[j][i] * PCM16_TO_FLT_FAC;
+#else
+            data_f[order[j]][i] = p_pcm_tmp[j][i];
+#endif
         }
         for ( ; j < IVAS_SPAR_MAX_DMX_CHS; j++ )
         {