def METHOD_NAME(
    cls,
    root: str,
    data_cfg: S2TDataConfig,
    split: str,
    tgt_dict,
    pre_tokenizer,
    bpe_tokenizer,
    is_train_split: bool,
    n_frames_per_step: int,
    speaker_to_id,
    do_chunk: bool = False,
    chunk_bound: int = -1,
    chunk_init: int = 50,
    chunk_incr: int = 5,
    add_eos: bool = True,
    dedup: bool = True,
    ref_fpu: float = -1,
) -> FrmTextToSpeechDataset:
    tsv_path = op.join(root, f"{split}.tsv")
    if not op.isfile(tsv_path):
        raise FileNotFoundError(f"Dataset not found: {tsv_path}")
    with open(tsv_path) as f:
        reader = csv.DictReader(
            f,
            delimiter="\t",
            quotechar=None,
            doublequote=False,
            lineterminator="\n",
            quoting=csv.QUOTE_NONE,
        )
        s = [dict(e) for e in reader]
        assert len(s) > 0
    ids = [ss[cls.KEY_ID] for ss in s]
    audio_paths = [op.join(data_cfg.audio_root, ss[cls.KEY_AUDIO]) for ss in s]
    n_frames = [int(ss[cls.KEY_N_FRAMES]) for ss in s]
    tgt_texts = [ss[cls.KEY_TGT_TEXT] for ss in s]
    src_texts = [ss.get(cls.KEY_SRC_TEXT, cls.DEFAULT_SRC_TEXT) for ss in s]
    speakers = [ss.get(cls.KEY_SPEAKER, cls.DEFAULT_SPEAKER) for ss in s]
    src_langs = [ss.get(cls.KEY_SRC_LANG, cls.DEFAULT_LANG) for ss in s]
    tgt_langs = [ss.get(cls.KEY_TGT_LANG, cls.DEFAULT_LANG) for ss in s]
    return FrmTextToSpeechDataset(
        split=split,
        is_train_split=is_train_split,
        data_cfg=data_cfg,
        audio_paths=audio_paths,
        n_frames=n_frames,
        src_texts=src_texts,
        tgt_texts=tgt_texts,
        speakers=speakers,
        src_langs=src_langs,
        tgt_langs=tgt_langs,
        ids=ids,
        tgt_dict=tgt_dict,
        pre_tokenizer=pre_tokenizer,
        bpe_tokenizer=bpe_tokenizer,
        n_frames_per_step=n_frames_per_step,
        speaker_to_id=speaker_to_id,
        do_chunk=do_chunk,
        chunk_bound=chunk_bound,
        chunk_init=chunk_init,
        chunk_incr=chunk_incr,
        add_eos=add_eos,
        dedup=dedup,
        ref_fpu=ref_fpu,
    )