if((st->element_mode==IVAS_CPE_MDCT||(st->is_ism_format&&st->core==TCX_20_CORE/* <- means TCX in general, TCX10 is forbidden after ACELP */))&&st->last_core_brate<=SID_2k40&&st->core_brate>SID_2k40)
#else
if((st->element_mode==IVAS_CPE_MDCT||(ivas_format==ISM_FORMAT&&st->core==TCX_20_CORE/* <- means TCX in general, TCX10 is forbidden after ACELP */))&&st->last_core_brate<=SID_2k40&&st->core_brate>SID_2k40)
#endif
{
/* smooth transitions to avoid pops in car noise items */
/* if we transition from inactive to active coding in MDCT-Stereo DTX and the output format is mono DMX, we need to sync the upsampled buffer between channels here */