diff --git a/lib_com/common_api_types.h b/lib_com/common_api_types.h
index 16614a929aac45f348d23167a627eadb570bf3d7..55d3450c3dda6cee5d72c410183b64340ab26820 100644
--- a/lib_com/common_api_types.h
+++ b/lib_com/common_api_types.h
@@ -57,11 +57,13 @@
 #define IVAS_MAX_PARAM_SPATIAL_SUBFRAMES 4
 #define IVAS_ROOM_ABS_COEFF              6
 
+#ifndef FIX_1153_ISAR_CONSTS
 /* Maximum buffer length (per channel) in samples */
 #define MAX_BUFFER_LENGTH_PER_CHANNEL ( L_FRAME48k )
 
 /* Frame size required when rendering to binaural */
 #define BINAURAL_RENDERING_FRAME_SIZE_MS 5
+#endif
 
 /*----------------------------------------------------------------------------------*
  * Common API enum for output audio configurations
diff --git a/lib_com/ivas_cnst.h b/lib_com/ivas_cnst.h
index 786a6d436b0665309802221619a0be173a179bb9..c6a3ff8a6a249ff8b2e005f1cc697c13487f73a7 100755
--- a/lib_com/ivas_cnst.h
+++ b/lib_com/ivas_cnst.h
@@ -177,6 +177,12 @@ typedef enum
 #define MAX_SPAR_INTERNAL_CHANNELS              IVAS_SPAR_MAX_CH
 #define MAX_CLDFB_DIGEST_CHANNELS               (FOA_CHANNELS + MAX_NUM_OBJECTS)
 
+#ifdef FIX_1153_ISAR_CONSTS
+#define MAX_BUFFER_LENGTH_PER_CHANNEL           L_FRAME48k                  /* Maximum buffer length (per channel) in samples */
+
+#define BINAURAL_RENDERING_FRAME_SIZE_MS        5                           /* Frame size required when rendering to binaural */
+#endif
+
 typedef enum
 {
     TC_BUFFER_MODE_RENDERER,
diff --git a/lib_com/options.h b/lib_com/options.h
index 484de232aa48b1865b46fd4fea0e4eb7f0a5a0fb..48e0c33c4941cf27cbdcd6563a401334f03a67cf 100644
--- a/lib_com/options.h
+++ b/lib_com/options.h
@@ -163,7 +163,7 @@
 #define FIX_1226_FASTCONV_HRTF_LOADING_OPTIM            /* VA: issue 1226: for FastConv binaural renderer in decoder, load only HTRT coefficient set that is needed */
 #define FIX_1227_Crend_HRTF_LOADING_OPTIM               /* VA: issue 1227: for Crend binaural renderer in decoder, load only HTRT coefficient set that is needed */
 #define FIX_1222_OMASA_DEC_CHANNEL_BUFFERS              /* VA: issue 1222: Reduction of the number of channel buffers in OMASA decoder */
-
+#define FIX_1153_ISAR_CONSTS                            /* VA: issue 1153: Replace debugging constant FRAMES_PER_SECOND by FRAMES_PER_SEC + define constants in library instead of in API */
 
 /* #################### End BE switches ################################## */
 
diff --git a/lib_isar/isar_splitRendererPre.c b/lib_isar/isar_splitRendererPre.c
index 4cd4855ecc63d46c08c3e1c94f76562f85b45eeb..b81123e17cc22a1b21ccaa119e2e7ca460c159ac 100644
--- a/lib_isar/isar_splitRendererPre.c
+++ b/lib_isar/isar_splitRendererPre.c
@@ -1776,7 +1776,11 @@ ivas_error split_renderer_open_lc3plus(
     /* Alocate buffers for delay compensation */
     if ( pSplitRendConfig->codec == ISAR_SPLIT_REND_CODEC_LC3PLUS )
     {
+#ifdef FIX_1153_ISAR_CONSTS
+        delayBufferLength = (int16_t) ( output_Fs / (int32_t) FRAMES_PER_SEC + hSplitRendWrapper->lc3plusDelaySamples );
+#else
         delayBufferLength = (int16_t) ( output_Fs / (int32_t) FRAMES_PER_SECOND + hSplitRendWrapper->lc3plusDelaySamples );
+#endif
         for ( i = 0; i < hSplitRendWrapper->multiBinPoseData.num_poses * BINAURAL_CHANNELS; ++i )
         {
             if ( ( hSplitRendWrapper->lc3plusDelayBuffers[i] = malloc( delayBufferLength * sizeof( float ) ) ) == NULL )
@@ -1905,7 +1909,11 @@ ivas_error isar_renderMultiTDBinToSplitBinaural(
     if ( useLc3plus )
     {
         /*this should always have the time resolution of pose correction MD. Note that this does not change frame size of LC3plus*/
+#ifdef FIX_1153_ISAR_CONSTS
+        int16_t frame_size = (int16_t) ( hSplitBin->hLc3plusEnc->config.samplerate / (int32_t) FRAMES_PER_SEC );
+#else
         int16_t frame_size = (int16_t) ( hSplitBin->hLc3plusEnc->config.samplerate / (int32_t) FRAMES_PER_SECOND );
+#endif
 
         for ( i = 0; i < num_poses * BINAURAL_CHANNELS; ++i )
         {