diff --git a/lib_com/options.h b/lib_com/options.h
index 1ecb07333a4821f7ade5b1824198e506eacbaac6..0497514205d43da27035fbfba981f89f1d5f4e21 100644
--- a/lib_com/options.h
+++ b/lib_com/options.h
@@ -124,6 +124,7 @@
 #define HARMONIZE_DoRTFTn                               /* VA: harmonize functions DoRTFTn_fx() and DoRTFTn_fx_ivas() */
 #define FIX_1574_EFAP_CODE_LINT                         /* FhG: float issue 1574: Code quality fixes in ivas_efap.c */
 #define FIX_BASOP_2529_MASA_RATIO_SCALINGS              /* Nokia: BASOP issue 2529: Fix MASA ratio scalings and verifications */
+#define FIX_1576_LCLD_CRASH_DIFFERENT_CODEC_ISAR_FRAME_SIZE  /* Dolby: float issue 1576: fix for crash in LCLD mode when codec frame size is less than isar frame size */
 
 /* ##################### End NON-BE switches ########################### */
 
diff --git a/lib_isar/lib_isar_pre_rend.c b/lib_isar/lib_isar_pre_rend.c
index f9858f413029b12694e4c1794c21b0c992581815..910f5f4230523ac883bb6d1a2bd9d9fc0daf2441 100644
--- a/lib_isar/lib_isar_pre_rend.c
+++ b/lib_isar/lib_isar_pre_rend.c
@@ -158,10 +158,29 @@ ivas_error ISAR_PRE_REND_open(
         }
         ELSE
         {
+#ifndef FIX_1576_LCLD_CRASH_DIFFERENT_CODEC_ISAR_FRAME_SIZE
             Word16 iNumBlocksPerFrame;
             iNumBlocksPerFrame = ( CLDFB_NO_COL_MAX * pSplitRendConfig->codec_frame_size_ms ) / 20;
+#else
+            Word16 iNumBlocksPerFrame, iNumLCLDIterationsPerFrame;
+            IF( GT_16( pSplitRendConfig->codec_frame_size_ms, 0 ) )
+            {
+                iNumLCLDIterationsPerFrame = (Word16) pSplitRendConfig->isar_frame_size_ms / ( pSplitRendConfig->codec_frame_size_ms );
+                iNumLCLDIterationsPerFrame = s_max( 1, iNumLCLDIterationsPerFrame );
+                iNumBlocksPerFrame = ( CLDFB_NO_COL_MAX * pSplitRendConfig->codec_frame_size_ms ) / 20;
+            }
+            else
+            {
+                iNumLCLDIterationsPerFrame = 1;
+                iNumBlocksPerFrame = CLDFB_NO_COL_MAX;
+            }
+#endif
 
+#ifndef FIX_1576_LCLD_CRASH_DIFFERENT_CODEC_ISAR_FRAME_SIZE
             IF( ( error = isar_splitBinLCLDEncOpen( &hSplitRendWrapper->hSplitBinLCLDEnc, OutSampleRate, BINAURAL_CHANNELS, isar_get_lcld_bitrate( pSplitRendConfig->splitRendBitRate, hSplitRendWrapper->multiBinPoseData.poseCorrectionMode ), iNumBlocksPerFrame, 1 ) ) != IVAS_ERR_OK )
+#else
+            IF( ( error = isar_splitBinLCLDEncOpen( &hSplitRendWrapper->hSplitBinLCLDEnc, OutSampleRate, BINAURAL_CHANNELS, isar_get_lcld_bitrate( pSplitRendConfig->splitRendBitRate, hSplitRendWrapper->multiBinPoseData.poseCorrectionMode ), iNumBlocksPerFrame, iNumLCLDIterationsPerFrame ) ) != IVAS_ERR_OK )
+#endif
             {
                 return error;
             }