# Bug description In lib_rend/ivas_mcmasa_ana_fx.c, struct `CovarianceMatrix` there are two floating-point buffer leftovers: ``` typedef struct { float xr[MCMASA_MAX_ANA_CHANS][MCMASA_MAX_ANA_CHANS]; float xi[MCMASA_MAX_ANA_CHANS][MCMASA_MAX_ANA_CHANS]; Word32 xr_fx[MCMASA_MAX_ANA_CHANS][MCMASA_MAX_ANA_CHANS]; Word32 xi_fx[MCMASA_MAX_ANA_CHANS][MCMASA_MAX_ANA_CHANS]; Word16 xr_e[MCMASA_MAX_ANA_CHANS][MCMASA_MAX_ANA_CHANS]; /*Stores exponent for xr_fx*/ Word16 xi_e[MCMASA_MAX_ANA_CHANS][MCMASA_MAX_ANA_CHANS]; /*Stores exponent for xi_fx*/ } CovarianceMatrix; ``` I haven't seen any debugging code which makes use of it, so I would propose to remove it.