diff --git a/lib_com/options.h b/lib_com/options.h
index dc1b88d11db2b3a435f4102746666d6ecbd9e4a7..e237e1f1efea4c1550de2063dbee6518052bc03c 100644
--- a/lib_com/options.h
+++ b/lib_com/options.h
@@ -161,7 +161,7 @@
 /*#define FIX_I4_OL_PITCH*/                             /* fix open-loop pitch used for EVS core switching */
 #define TMP_FIX_1119_SPLIT_RENDERING_VOIP               /* FhG: Add error check for unsupported config: split rendering with VoIP mode */
 #define UNIFIED_DECODING_PATHS_LEFTOVERS                /* VA: issue 880: remove leftovers after NONBE_UNIFIED_DECODING_PATHS */
-
+#define FIX_1314_STEREO_TO_EXT                          /* VA: issue 1314: set RENDERER_DISABLE for stereo to EXT output */
 
 /* #################### End BE switches ################################## */
 
diff --git a/lib_dec/ivas_out_setup_conversion.c b/lib_dec/ivas_out_setup_conversion.c
index 699343c1da5f80a7bd03e883f9f31dc7b4a9d404..90473903d9e140a22759dcb0015051026e92d56b 100644
--- a/lib_dec/ivas_out_setup_conversion.c
+++ b/lib_dec/ivas_out_setup_conversion.c
@@ -223,9 +223,6 @@ static ivas_error get_ls_conversion_matrix(
     int16_t index;
     float value;
     const LS_CONVERSION_MATRIX *conversion_matrix;
-    ivas_error error;
-
-    error = IVAS_ERR_OK;
 
     conversion_matrix = NULL;
 
@@ -260,7 +257,7 @@ static ivas_error get_ls_conversion_matrix(
                         }
                     }
                 }
-                return error;
+                return IVAS_ERR_OK;
             }
             else
             {
@@ -273,7 +270,7 @@ static ivas_error get_ls_conversion_matrix(
                     {
                         hLsSetUpConversion->dmxMtx[k][k] = 1.0f;
                     }
-                    return error;
+                    return IVAS_ERR_OK;
                 }
                 else
                 {
@@ -288,7 +285,7 @@ static ivas_error get_ls_conversion_matrix(
                         hLsSetUpConversion->dmxMtx[ch_in][ch_out] = value;
                     }
                 }
-                return error;
+                return IVAS_ERR_OK;
             }
         }
     }
@@ -311,8 +308,10 @@ ivas_error ivas_ls_setup_conversion_open(
     int16_t chIdx, inChannels, outChannels;
     int16_t output_frame;
     int32_t output_Fs;
-    int16_t nchan_out;
     int16_t paramUpmixMonoStereo;
+#ifdef FIX_1314_STEREO_TO_EXT
+    ivas_error error;
+#endif
 
     if ( st_ivas->ivas_format == MC_FORMAT && st_ivas->mc_mode == MC_MODE_PARAMUPMIX && ( st_ivas->hDecoderConfig->output_config == IVAS_AUDIO_CONFIG_MONO || st_ivas->hDecoderConfig->output_config == IVAS_AUDIO_CONFIG_STEREO ) )
     {
@@ -323,7 +322,7 @@ ivas_error ivas_ls_setup_conversion_open(
         paramUpmixMonoStereo = FALSE;
     }
     output_Fs = st_ivas->hDecoderConfig->output_Fs;
-    nchan_out = st_ivas->hDecoderConfig->nchan_out;
+    outChannels = st_ivas->hDecoderConfig->nchan_out;
     output_frame = (int16_t) ( output_Fs / FRAMES_PER_SEC );
 
     /* Allocate memory to the handle */
@@ -332,9 +331,8 @@ ivas_error ivas_ls_setup_conversion_open(
         return ( IVAS_ERROR( IVAS_ERR_FAILED_ALLOC, "Can not allocate memory for LS configuration Conversion Handle \n" ) );
     }
 
-    assert( nchan_out <= MAX_OUTPUT_CHANNELS );
+    assert( outChannels <= MAX_OUTPUT_CHANNELS );
 
-    outChannels = nchan_out;
     if ( st_ivas->renderer_type == RENDERER_MC_PARAMMC )
     {
         inChannels = st_ivas->hTransSetup.nchan_out_woLFE + st_ivas->hTransSetup.num_lfe;
@@ -423,16 +421,37 @@ ivas_error ivas_ls_setup_conversion_open(
         {
             if ( paramUpmixMonoStereo == TRUE )
             {
+#ifdef FIX_1314_STEREO_TO_EXT
+                if ( ( error = get_ls_conversion_matrix( hLsSetUpConversion, IVAS_AUDIO_CONFIG_5_1_2, st_ivas->hDecoderConfig->output_config ) ) != IVAS_ERR_OK )
+                {
+                    return error;
+                }
+#else
                 get_ls_conversion_matrix( hLsSetUpConversion, IVAS_AUDIO_CONFIG_5_1_2, st_ivas->hDecoderConfig->output_config );
+#endif
             }
             else
             {
+#ifdef FIX_1314_STEREO_TO_EXT
+                if ( ( error = get_ls_conversion_matrix( hLsSetUpConversion, st_ivas->transport_config, st_ivas->hDecoderConfig->output_config ) ) != IVAS_ERR_OK )
+                {
+                    return error;
+                }
+#else
                 get_ls_conversion_matrix( hLsSetUpConversion, st_ivas->transport_config, st_ivas->hDecoderConfig->output_config );
+#endif
             }
         }
         else
         {
+#ifdef FIX_1314_STEREO_TO_EXT
+            if ( ( error = get_ls_conversion_matrix( hLsSetUpConversion, st_ivas->intern_config, st_ivas->hDecoderConfig->output_config ) ) != IVAS_ERR_OK )
+            {
+                return error;
+            }
+#else
             get_ls_conversion_matrix( hLsSetUpConversion, st_ivas->intern_config, st_ivas->hDecoderConfig->output_config );
+#endif
         }
     }
 
@@ -633,9 +652,7 @@ void ivas_ls_setup_conversion_process_mdct(
         {
             dmxCoeff = hLsSetUpConversion->dmxMtx[chInIdx][chOutIdx];
 
-            if (
-                chInIdx != LFE_CHANNEL &&
-                mct_chan_mode[chInIdx] != MCT_CHAN_MODE_IGNORE )
+            if ( chInIdx != LFE_CHANNEL && mct_chan_mode[chInIdx] != MCT_CHAN_MODE_IGNORE )
             {
                 /* Step 1: Compute the target energy and DMX signal (possible since we have all signals in TCX20 resolution) */
                 if ( dmxCoeff )
@@ -728,9 +745,7 @@ void ivas_ls_setup_conversion_process_mdct(
     /* Step 4: Perform equalization */
     for ( chInIdx = 0; chInIdx < inChannels; chInIdx++ )
     {
-        if (
-            chInIdx != LFE_CHANNEL &&
-            mct_chan_mode[chInIdx] != MCT_CHAN_MODE_IGNORE )
+        if ( chInIdx != LFE_CHANNEL && mct_chan_mode[chInIdx] != MCT_CHAN_MODE_IGNORE )
         {
             if ( transform_type[chInIdx][0] == TCX_20 )
             {
diff --git a/lib_dec/ivas_output_config.c b/lib_dec/ivas_output_config.c
index 430b57afa20dbbe874fe3b7c78638efa2e1d7c97..5df52f8287f22315dc4dfdf4d2548a53cf84ea43 100644
--- a/lib_dec/ivas_output_config.c
+++ b/lib_dec/ivas_output_config.c
@@ -262,7 +262,11 @@ void ivas_renderer_select(
     }
     else if ( st_ivas->ivas_format == STEREO_FORMAT )
     {
+#ifdef FIX_1314_STEREO_TO_EXT
+        if ( output_config != IVAS_AUDIO_CONFIG_STEREO && output_config != IVAS_AUDIO_CONFIG_MONO && output_config != IVAS_AUDIO_CONFIG_EXTERNAL )
+#else
         if ( output_config != IVAS_AUDIO_CONFIG_STEREO && output_config != IVAS_AUDIO_CONFIG_MONO )
+#endif
         {
             *renderer_type = RENDERER_MC;
         }