This is a follow up of https://forge.3gpp.org/rep/sa4/audio/ivas-basop/-/merge_requests/2851#note_111237. There seems to be a bug in calling function Quant_BWE_LSF_fx() in the SWB TBE decoder at https://forge.3gpp.org/rep/sa4/audio/ivas-basop/-/blob/main/lib_enc/swb_tbe_enc_fx.c#L2639. The last parameter should be likely `st_fx->extl_brate` instead of `st_fx->extl`: ``` /* LSF quantization (21 bits) */ IF( st_fx->element_mode == EVS_MONO ) { Quant_BWE_LSF_fx( hBstr, hBWE_TD, st_fx->codec_mode, lsf_shb_fx, lsf_shb_fx, st_fx->extl ); // this is likely a bug in EVS } ELSE { Quant_BWE_LSF_fx( hBstr, hBWE_TD, st_fx->codec_mode, lsf_shb_fx, lsf_shb_fx, st_fx->extl_brate ); } ``` <!--- Below are labels that will be added but are not shown in description. This is a template to help fill them. Add further information to the first row and remove and add labels as necessary.-->