diff --git a/lib_com/options.h b/lib_com/options.h
old mode 100644
new mode 100755
index dfe0f53d0739224afe025cdab18bf399779b8263..62717d9ad7558429dbb9be162d2fa9d07794bc47
--- a/lib_com/options.h
+++ b/lib_com/options.h
@@ -191,6 +191,7 @@
 #define FIX_386_CORECODER_RECONFIG_2                    /* VA: Issue 386: Resolve remaining ToDo comments in CoreCoder reconfig. */
 #define FIX_440_PARAM_ISM_DIR_NOISE                     /* FhG: Issue 440: Fix directional background noise becoming diffuse in ParamISM */
 
+#define LBR_SBA_DIRAC_FIX                               /* DLB: Bug fix for DirAC at low bitrates */
 #define FIX_445_SNS_BUGFIXES                            /* FhG: bug fix for spectral tilt in SNS computation + necessary update of codebooks and converison to fixedpoint-compatible tables */
 
 #define FIX_447_PARAMBIN_MASA_REGU_FAC                  /* Nokia: Issue 447: Fix issue by adjusting regularization factor minimum value. */
diff --git a/lib_enc/ivas_dirac_enc.c b/lib_enc/ivas_dirac_enc.c
index 6c094a4491e968999498e907cbe78146cdfd6d2c..72d55bc1710fcaa8a74777d2184f9b0e11329a72 100644
--- a/lib_enc/ivas_dirac_enc.c
+++ b/lib_enc/ivas_dirac_enc.c
@@ -247,8 +247,21 @@ ivas_error ivas_dirac_enc_reconfigure(
 
 
     /* :TODO: if the number of parameter bands change, do a meaningful mapping of parameter buffers from old to new band setting */
+#ifdef LBR_SBA_DIRAC_FIX
+
+    if ( st_ivas->hQMetaData->useLowerRes )
+    {
+        hDirAC->block_grouping[0] = 0;
+        hDirAC->block_grouping[1] = MAX_PARAM_SPATIAL_SUBFRAMES;
+    }
+    else
+    {
+        mvs2s( DirAC_block_grouping_5ms_MDFT, hDirAC->block_grouping, MAX_PARAM_SPATIAL_SUBFRAMES + 1 );
+    }
+#else
 
     mvs2s( DirAC_block_grouping, hDirAC->block_grouping, MAX_PARAM_SPATIAL_SUBFRAMES + 1 );
+#endif
 
     return error;
 }
@@ -756,14 +769,20 @@ void ivas_dirac_param_est_enc(
                 assert( pp_fr_real );
                 assert( pp_fr_imag );
 #endif
+
 #ifdef HODIRAC
                 for ( i = 0; i < nchan_fb_in; i++ )
 #else
                 for ( i = 0; i < DIRAC_MAX_ANA_CHANS; i++ )
 #endif
                 {
+#ifdef LBR_SBA_DIRAC_FIX
+                    mvr2r( &pp_fr_real[i][ts * l_ts], Cldfb_RealBuffer[i], l_ts );
+                    mvr2r( &pp_fr_imag[i][ts * l_ts], Cldfb_ImagBuffer[i], l_ts );
+#else
                     mvr2r( &pp_fr_real[i][block_m_idx * l_ts], Cldfb_RealBuffer[i], l_ts );
                     mvr2r( &pp_fr_imag[i][block_m_idx * l_ts], Cldfb_ImagBuffer[i], l_ts );
+#endif
                 }
             }
 #ifndef HODIRAC