diff --git a/lib_com/options.h b/lib_com/options.h
index 2dc3d3321af953eb468c23ebfb128eefb31e54f0..82fbd67100488f04e1d6f4445c7b23aa73bf76e0 100644
--- a/lib_com/options.h
+++ b/lib_com/options.h
@@ -181,6 +181,7 @@
 #define NONBE_FIX_AVG_IAC_CLDFB_REVERB
 #endif
 #define FIX_993_REMOVE_SBA_GET_ORDER                    /* VA: issue 993: remove unused function ivas_sba_get_order() */
+#define FIX_960_SYN_OUTPUT                              /* VA: issue 960: unused function syn_output() is removed */
 
 //#define USE_NEW_HRTF_BINARY_FILE_FORMAT                 /* Orange: to activate when decided to change the hrtf binary file format */
 #ifdef USE_NEW_HRTF_BINARY_FILE_FORMAT
diff --git a/lib_com/prot.h b/lib_com/prot.h
index 5dd083e86764389625a1de7ba048ece22a2972de..46fc826ed0dc6d313c28ec2b1fcd373387444483 100644
--- a/lib_com/prot.h
+++ b/lib_com/prot.h
@@ -4789,13 +4789,14 @@ void dec_acelp_4t64(
     float code[],            /* o  : algebraic (fixed) codebook excitation           */
     const int16_t Opt_AMR_WB /* i  : flag indicating AMR-WB IO mode                  */
 );
-
+#ifndef FIX_960_SYN_OUTPUT
 uint32_t syn_output(
     float *synth,               /* i/o: float synthesis signal                          */
     const int16_t output_frame, /* i  : output frame length                             */
     int16_t *synth_out          /* o  : integer 16 bits synthesis signal                */
 );
 
+#endif
 void FEC_exc_estim(
     Decoder_State *st,     /* i/o: Decoder static memory                           */
     const int16_t L_frame, /* i  : length of the frame                             */
diff --git a/lib_dec/syn_outp.c b/lib_dec/syn_outp.c
index 68389fa27980f1e1c747e8b0552435df2d7395c2..b5332088505931612d1ba9ae876335ee257c9a06 100644
--- a/lib_dec/syn_outp.c
+++ b/lib_dec/syn_outp.c
@@ -44,6 +44,7 @@
 #include "prot.h"
 #include "wmc_auto.h"
 
+#ifndef FIX_960_SYN_OUTPUT
 /*-------------------------------------------------------------------*
  * syn_output()
  *
@@ -65,7 +66,7 @@ uint32_t syn_output(
     /* integer conversion */
     return mvr2s( synth, synth_out, output_frame );
 }
-
+#endif
 
 /*-------------------------------------------------------------------*
  * AGC_dec()