diff --git a/lib_com/ivas_prot.h b/lib_com/ivas_prot.h
index ab7f7362b5c3e226cc15776af2c8b77de7922650..c6fb28ee63ea7da4f17a341a6faf34814e0c5c21 100755
--- a/lib_com/ivas_prot.h
+++ b/lib_com/ivas_prot.h
@@ -2525,6 +2525,13 @@ void SetCurrentPsychParams(
     TCX_CONFIG_HANDLE hTcxCfg 
 );
 
+#ifdef NONBE_FIX_1329_OSBA_CRASH_128
+int16_t is_available_bits(
+    Encoder_State **sts, /* i/o: encoder state structure         */
+    const int16_t mct_on /* i  : flag mct block (1) or stereo (0)  */
+);
+#endif
+
 void stereo_coder_tcx(
     STEREO_MDCT_ENC_DATA_HANDLE hStereoMdct,                    /* i/o: MDCT encoder structure                  */
     Encoder_State **sts,                                        /* i/o: encoder state structure                 */
diff --git a/lib_com/options.h b/lib_com/options.h
index 80cd7a383bbd806dfa0f5fa82fac8262234d7590..e65359b711895c29872730db20b8dd5fc86c9f34 100644
--- a/lib_com/options.h
+++ b/lib_com/options.h
@@ -171,7 +171,7 @@
 
 #define NONBE_1244_FIX_SWB_BWE_MEMORY                   /* VA: issue 1244: fix to SWB BWE memory in case of switching from FB coding - pending a review by Huawei */ 
 #define NONBE_1122_KEEP_EVS_MODE_UNCHANGED              /* FhG: Disables fix for issue 1122 in EVS mode to keep BE tests green. This switch should be removed once the 1122 fix is added to EVS via a CR.  */
-
+#define NONBE_FIX_1329_OSBA_CRASH_128                   /* Dlb: Fix for issue 1329, OSBA cras at 128 kbps*/
 
 /* ##################### End NON-BE switches ########################### */
 
diff --git a/lib_enc/ivas_mct_enc_mct.c b/lib_enc/ivas_mct_enc_mct.c
index feefd008ee8ab81e33f796a53977bb59a1088797..c1478b2b092b09232cfbe6cfbd837df3633989eb 100644
--- a/lib_enc/ivas_mct_enc_mct.c
+++ b/lib_enc/ivas_mct_enc_mct.c
@@ -588,6 +588,18 @@ void apply_MCT_enc(
 
             if ( ( fabsf( max_corr ) > DEFAULT_CORR_THRES && !hMCT->hbr_mct ) || ( fabsf( max_corr ) > SPAR_CORR_THRES && hMCT->hbr_mct ) )
             {
+#ifdef NONBE_FIX_1329_OSBA_CRASH_128
+                {
+                    Encoder_State *p_st[2];
+                    p_st[0] = sts[ch1];
+                    p_st[1] = sts[ch2];
+                    if ( is_available_bits( p_st, 1 ) == 0 )
+                    {
+                        break;
+                    }
+                }
+#endif
+
                 if ( !forceKeepTree )
                 {
                     /*save channel pair*/
diff --git a/lib_enc/ivas_stereo_mdct_stereo_enc.c b/lib_enc/ivas_stereo_mdct_stereo_enc.c
index fa97984539101d7e80145469c21457c2f5532687..553f8e259e9d46686009eda2280d9aac35bf9de6 100755
--- a/lib_enc/ivas_stereo_mdct_stereo_enc.c
+++ b/lib_enc/ivas_stereo_mdct_stereo_enc.c
@@ -167,6 +167,46 @@ static void write_itd_data(
 }
 
 
+#ifdef NONBE_FIX_1329_OSBA_CRASH_128
+int16_t is_available_bits(
+    Encoder_State **sts, /* i/o: encoder state structure         */
+    const int16_t mct_on /* i  : flag mct block (1) or stereo (0)  */
+)
+{
+    int16_t nSubframes, bits_available;
+    nSubframes = ( sts[0]->core == TCX_20_CORE && sts[1]->core == TCX_20_CORE ) ? 1 : NB_DIV;
+    if ( !mct_on )
+    {
+        return 1;
+    }
+    else
+    {
+        if (
+#ifdef DEBUG_FORCE_MDCT_STEREO_MODE
+            hStereoMdct->fDualMono ||
+#endif
+            ( sts[0]->hTcxEnc->transform_type[0] != sts[1]->hTcxEnc->transform_type[0] ) || ( sts[0]->hTcxEnc->transform_type[1] != sts[1]->hTcxEnc->transform_type[1] ) || ( sts[0]->last_core != sts[1]->last_core && ( sts[0]->last_core == ACELP_CORE || sts[1]->last_core == ACELP_CORE ) ) || sts[0]->last_core == ACELP_CORE || sts[1]->last_core == ACELP_CORE )
+        {
+            return 1;
+        }
+        else
+        {
+            int16_t k;
+            for ( k = 0; k < nSubframes; k++ )
+            {
+                bits_available = ( ( mct_on ? 2 * sts[0]->bits_frame_channel : sts[0]->bits_frame_nominal ) - sts[0]->side_bits_frame_channel - sts[1]->side_bits_frame_channel - ( nSubframes == 2 ? OFFSET_BITS_TCX10 : OFFSET_BITS_TCX20 ) ) / nSubframes;
+                /*check if this should be 0 or a higher value*/
+                if ( bits_available <= 0 )
+                {
+                    return 0;
+                }
+            }
+        }
+    }
+    return 1;
+}
+#endif
+
 /*-------------------------------------------------------------------*
  * stereo_coder_tcx()
  *