diff --git a/lib_com/options.h b/lib_com/options.h
index 4b8f2828b70cf967f4ea851203c4149f398fb58d..52b92e83aa3da639dc3d1594443cac75752b11b3 100644
--- a/lib_com/options.h
+++ b/lib_com/options.h
@@ -177,6 +177,7 @@
 #define NONBE_1328_FIX_NON_LINEARITY                    /* VA: Fix possible issue when computing bwe_exc_extended and previous frame were almost 0  */
 #define NONBE_1321_JBM_ASSERT_BITRATE_SWITCHING         /* FhG: Fix assert being hit in JBM code during rate switching */
 #define NONBE_FIX_1376_MDCT_CONCEALMENT                 /* FhG: fix concealment artifact in MDCT Stereo with DTX, in case transition frame gets lost */
+#define NONBE_1377_REND_DIRATT_CONF                     /* Eri: Issue 1377: Error in directivity attenuation configuration for both IVAS_dec and IVAS_rend */
 
 /* ##################### End NON-BE switches ########################### */
 
diff --git a/lib_rend/ivas_objectRenderer.c b/lib_rend/ivas_objectRenderer.c
index ed4fb71c423b538609cc173125c6ff82fdf56933..6e836e141c2ad7cb2a44c8318899b353925e1cc7 100644
--- a/lib_rend/ivas_objectRenderer.c
+++ b/lib_rend/ivas_objectRenderer.c
@@ -534,13 +534,16 @@ ivas_error TDREND_Update_object_positions(
     const ISM_METADATA_HANDLE *hIsmMetaData            /* i  : Input metadata for ISM objects   */
 )
 {
+#ifndef NONBE_1377_REND_DIRATT_CONF
     TDREND_DirAtten_t *DirAtten_p;
+#endif
     int16_t nS;
     float Pos[3];
     float Dir[3];
     ivas_error error;
-
+#ifndef NONBE_1377_REND_DIRATT_CONF
     DirAtten_p = hBinRendererTd->DirAtten_p;
+#endif
 
     /* For each source, write the frame data to the source object*/
     for ( nS = 0; nS < num_src; nS++ )
@@ -557,11 +560,12 @@ ivas_error TDREND_Update_object_positions(
                 return error;
             }
 
+#ifndef NONBE_1377_REND_DIRATT_CONF
             if ( ( error = TDREND_MIX_SRC_SetDirAtten( hBinRendererTd, nS, DirAtten_p ) ) != IVAS_ERR_OK )
             {
                 return error;
             }
-
+#endif
             if ( ( error = TDREND_MIX_SRC_SetGain( hBinRendererTd, nS, hIsmMetaData[nS]->gain ) ) != IVAS_ERR_OK )
             {
                 return error;
@@ -675,13 +679,22 @@ ivas_error ivas_td_binaural_open_ext(
     AUDIO_CONFIG inConfig,
     RENDER_CONFIG_DATA *hRendCfg, /* i  : Renderer configuration */
     LSSETUP_CUSTOM_STRUCT *customLsInput,
+#ifdef NONBE_1377_REND_DIRATT_CONF
+    const int32_t outFs,       /* i: output sampling rate */
+    const IVAS_REND_InputId id /* i: ISM ID */
+)
+#else
     const int32_t outFs )
+#endif
 {
     int16_t nchan_transport;
     AUDIO_CONFIG transport_config;
     IVAS_FORMAT ivas_format;
     IVAS_OUTPUT_SETUP hTransSetup;
     ivas_error error;
+#ifdef NONBE_1377_REND_DIRATT_CONF
+    int16_t ism_number;
+#endif
 
     float *distAtt = NULL;
     float *directivity = NULL;
@@ -712,7 +725,12 @@ ivas_error ivas_td_binaural_open_ext(
 
     if ( NULL != hRendCfg )
     {
+#ifdef NONBE_1377_REND_DIRATT_CONF
+        ism_number = id & 0x00FF; /* Exctract ISM number from ID */
+        directivity = hRendCfg->directivity + 3 * ism_number;
+#else
         directivity = hRendCfg->directivity;
+#endif
         distAtt = hRendCfg->distAtt;
     }
 
diff --git a/lib_rend/ivas_prot_rend.h b/lib_rend/ivas_prot_rend.h
index 126112a7db36b7348b25ec507aaeabca708990bf..2617bae683233d35cf5ae7b5be9f0d259f6c4170 100644
--- a/lib_rend/ivas_prot_rend.h
+++ b/lib_rend/ivas_prot_rend.h
@@ -661,7 +661,12 @@ ivas_error ivas_td_binaural_open_ext(
     const AUDIO_CONFIG inConfig,
     RENDER_CONFIG_DATA *hRendCfg,                               /* i  : Renderer configuration                  */
     LSSETUP_CUSTOM_STRUCT *customLsInput,
+#ifdef NONBE_1377_REND_DIRATT_CONF
+    const int32_t outFs,                                        /* i: output sampling rate                      */
+    const IVAS_REND_InputId id                                  /* i: ISM ID                                    */
+#else
     const int32_t output_Fs 
+#endif
 );
 
 void ivas_td_binaural_close(
diff --git a/lib_rend/lib_rend.c b/lib_rend/lib_rend.c
index 180fd5dabd579609cb3fa733d907fbf9b15ca0fe..4d12d71e39138e721281b15aea5b87c3f4385d03 100644
--- a/lib_rend/lib_rend.c
+++ b/lib_rend/lib_rend.c
@@ -1608,7 +1608,11 @@ static ivas_error setRendInputActiveIsm(
 
     if ( outConfig == IVAS_AUDIO_CONFIG_BINAURAL || outConfig == IVAS_AUDIO_CONFIG_BINAURAL_SPLIT_CODED || outConfig == IVAS_AUDIO_CONFIG_BINAURAL_SPLIT_PCM )
     {
+#ifdef NONBE_1377_REND_DIRATT_CONF
+        if ( ( error = ivas_td_binaural_open_ext( &inputIsm->tdRendWrapper, inConfig, hRendCfg, NULL, *rendCtx.pOutSampleRate, id ) ) != IVAS_ERR_OK )
+#else
         if ( ( error = ivas_td_binaural_open_ext( &inputIsm->tdRendWrapper, inConfig, hRendCfg, NULL, *rendCtx.pOutSampleRate ) ) != IVAS_ERR_OK )
+#endif
         {
             return error;
         }
@@ -1616,7 +1620,11 @@ static ivas_error setRendInputActiveIsm(
         /* Open TD renderer wrappers */
         for ( i = 0; i < MAX_HEAD_ROT_POSES - 1; ++i )
         {
+#ifdef NONBE_1377_REND_DIRATT_CONF
+            if ( ( error = ivas_td_binaural_open_ext( &inputIsm->splitTdRendWrappers[i], inConfig, hRendCfg, NULL, *inputIsm->base.ctx.pOutSampleRate, id ) ) != IVAS_ERR_OK )
+#else
             if ( ( error = ivas_td_binaural_open_ext( &inputIsm->splitTdRendWrappers[i], inConfig, hRendCfg, NULL, *inputIsm->base.ctx.pOutSampleRate ) ) != IVAS_ERR_OK )
+#endif
             {
                 return error;
             }
@@ -1634,7 +1642,11 @@ static ivas_error setRendInputActiveIsm(
     }
     else
     {
+#ifdef NONBE_1377_REND_DIRATT_CONF
+        if ( ( error = ivas_td_binaural_open_ext( &inputIsm->tdRendWrapper, inConfig, hRendCfg, NULL, *rendCtx.pOutSampleRate, id ) ) != IVAS_ERR_OK )
+#else
         if ( ( error = ivas_td_binaural_open_ext( &inputIsm->tdRendWrapper, inConfig, hRendCfg, NULL, *rendCtx.pOutSampleRate ) ) != IVAS_ERR_OK )
+#endif
         {
             return error;
         }
@@ -2391,7 +2403,11 @@ static ivas_error initMcBinauralRendering(
 
     if ( useTDRend && inputMc->tdRendWrapper.hBinRendererTd == NULL )
     {
+#ifdef NONBE_1377_REND_DIRATT_CONF
+        if ( ( error = ivas_td_binaural_open_ext( &inputMc->tdRendWrapper, inConfig, hRendCfg, &inputMc->customLsInput, outSampleRate, 0 ) ) != IVAS_ERR_OK )
+#else
         if ( ( error = ivas_td_binaural_open_ext( &inputMc->tdRendWrapper, inConfig, hRendCfg, &inputMc->customLsInput, outSampleRate ) ) != IVAS_ERR_OK )
+#endif
         {
             return error;
         }
@@ -2401,7 +2417,11 @@ static ivas_error initMcBinauralRendering(
             /* Open TD renderer wrappers */
             for ( i = 0; i < MAX_HEAD_ROT_POSES - 1; ++i )
             {
+#ifdef NONBE_1377_REND_DIRATT_CONF
+                if ( ( error = ivas_td_binaural_open_ext( &inputMc->splitTdRendWrappers[i], inConfig, hRendCfg, &inputMc->customLsInput, outSampleRate, 0 ) ) != IVAS_ERR_OK )
+#else
                 if ( ( error = ivas_td_binaural_open_ext( &inputMc->splitTdRendWrappers[i], inConfig, hRendCfg, &inputMc->customLsInput, outSampleRate ) ) != IVAS_ERR_OK )
+#endif
                 {
                     return error;
                 }