added check to avoid unnecessary postprocessing steps

        )

        # update values to reflect decoder output

        tmp_in_fs = dec_cfg.get("fs", tmp_in_fs)

    elif cond_cfg["type"] == "ivas":

        cod_cfg = cond_cfg["cod"]

        dec_cfg = cond_cfg["dec"]

        # update values to reflect decoder output

        tmp_in_fs = dec_cfg.get("fs", tmp_in_fs)

        tmp_in_fmt = dec_cfg.get("fmt", tmp_out_fmt)

    else:

        raise SystemExit(f"Unknown condition {condition}!")

        # add Postprocessing with only format conversion for each format except the last

        fmts = [tmp_in_fmt] + pre_fmts

        for fmt_in, fmt_out in zip(fmts[:-1], fmts[1:]):

            if fmt_in != fmt_out:

                chain["processes"].append(

                    Postprocessing(

                        {