diff --git a/lib_com/options.h b/lib_com/options.h
index 50e287e8ac07a55b98d20038562698e2317e1204..31f71296348e310beebb3da531ac8b7f550545f7 100644
--- a/lib_com/options.h
+++ b/lib_com/options.h
@@ -197,6 +197,7 @@
 #define NONBE_FIX_1052_SBA_EXT                          /* Dlb: SBA external output support */
 #define FIX_1082_INSTRUM_FAILED_LC3PLUS                 /* VoiceAge: issue 1082: fix ambiguous syntax in LC3Plus code leading to fails of instrumented builds */
 #define NONBE_FIX_1074_NOBJ_SIGNAL_OMASA_LBR            /* Nok: issue 1074 fixing number of objects signaling in OMASA low rate */
+#define FIX_1222_OMASA_DEC_CHANNEL_BUFFERS              /* VA: issue 1222: Reduction of the number of channel buffers in OMASA decoder */
 
 /* #################### End BASOP porting switches ############################ */
 
diff --git a/lib_dec/ivas_masa_dec.c b/lib_dec/ivas_masa_dec.c
index b4ea4dbecd596429c3fe71800dffaa49396f0d00..0115d0c366dd0f8bfae4a8983e6c38f99180f173 100644
--- a/lib_dec/ivas_masa_dec.c
+++ b/lib_dec/ivas_masa_dec.c
@@ -1544,7 +1544,11 @@ ivas_error ivas_masa_dec_reconfigure(
         {
             if ( st_ivas->ivas_format == MASA_ISM_FORMAT )
             {
+#ifdef FIX_1222_OMASA_DEC_CHANNEL_BUFFERS
+                tc_nchan_to_allocate = BINAURAL_CHANNELS + st_ivas->nchan_ism;
+#else
                 tc_nchan_to_allocate = 2 * BINAURAL_CHANNELS + 2;
+#endif
             }
             else
             {
diff --git a/lib_rend/ivas_dirac_dec_binaural_functions.c b/lib_rend/ivas_dirac_dec_binaural_functions.c
index 28b793e35d32a818821baab425ea1d898288877e..875d7a1ef02d5b6fdfee87071e686040839c22ca 100644
--- a/lib_rend/ivas_dirac_dec_binaural_functions.c
+++ b/lib_rend/ivas_dirac_dec_binaural_functions.c
@@ -325,7 +325,11 @@ ivas_error ivas_dirac_dec_init_binaural_data(
         nchan_to_allocate = 2 * BINAURAL_CHANNELS;
         if ( st_ivas->ivas_format == MASA_ISM_FORMAT )
         {
+#ifdef FIX_1222_OMASA_DEC_CHANNEL_BUFFERS
+            nchan_to_allocate = BINAURAL_CHANNELS + st_ivas->nchan_ism;
+#else
             nchan_to_allocate = 2 * BINAURAL_CHANNELS + 2;
+#endif
         }
 
         n_samples_granularity = NS2SA( st_ivas->hDecoderConfig->output_Fs, CLDFB_SLOT_NS );
diff --git a/lib_rend/ivas_output_init.c b/lib_rend/ivas_output_init.c
index 87df5d6df5a630039e1d9180961eefd9de69604d..cfa12e871056659be85cf0fb7af311231eabce39 100644
--- a/lib_rend/ivas_output_init.c
+++ b/lib_rend/ivas_output_init.c
@@ -289,10 +289,12 @@ int16_t ivas_get_nchan_buffers_dec(
         {
             nchan_out_buff = max( nchan_out_buff, st_ivas->hOutSetup.nchan_out_woLFE + st_ivas->hOutSetup.num_lfe );
         }
+#ifndef FIX_1222_OMASA_DEC_CHANNEL_BUFFERS
         else if ( st_ivas->renderer_type == RENDERER_BINAURAL_PARAMETRIC || st_ivas->renderer_type == RENDERER_BINAURAL_PARAMETRIC_ROOM || st_ivas->renderer_type == RENDERER_STEREO_PARAMETRIC )
         {
             nchan_out_buff = max( nchan_out_buff, 2 * BINAURAL_CHANNELS + 2 );
         }
+#endif
         else if ( output_config != IVAS_AUDIO_CONFIG_EXTERNAL )
         {
             nchan_out_buff = max( audioCfg2channels( st_ivas->transport_config ), audioCfg2channels( st_ivas->intern_config ) );
@@ -348,6 +350,12 @@ int16_t ivas_get_nchan_buffers_dec(
         {
             nchan_out_buff = max( nchan_out_buff, st_ivas->hOutSetup.nchan_out_woLFE + st_ivas->hOutSetup.num_lfe );
         }
+#ifdef FIX_1222_OMASA_DEC_CHANNEL_BUFFERS
+        else if ( st_ivas->renderer_type == RENDERER_BINAURAL_PARAMETRIC || st_ivas->renderer_type == RENDERER_BINAURAL_PARAMETRIC_ROOM || st_ivas->renderer_type == RENDERER_STEREO_PARAMETRIC )
+        {
+            nchan_out_buff = max( nchan_out_buff, BINAURAL_CHANNELS + st_ivas->nchan_ism );
+        }
+#endif
         else if ( output_config != IVAS_AUDIO_CONFIG_EXTERNAL )
         {
             nchan_out_buff = max( nchan_out_buff, audioCfg2channels( st_ivas->intern_config ) );