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# coding=utf-8
# Copyright 2021 Artem Ploujnikov
# Lint as: python3
import json
import datasets
_DESCRIPTION = """\
This is a public domain speech dataset consisting of 13,100 short audio
clips of a single speaker reading passages from 7 non-fiction books. A
transcription is provided for each clip. Clips vary in length from 1 to 10
seconds and have a total length of approximately 24 hours.
"""
_BASE_URL = "https://huggingface.co/datasets/flexthink/librig2p-nostress-space/resolve/main"
_HOMEPAGE_URL = "https://huggingface.co/datasets/flexthink/ljspeech"
_PHONEMES = [
"AA",
"AE",
"AH",
"AO",
"AW",
"AY",
"B",
"CH",
"D",
"DH",
"EH",
"ER",
"EY",
"F",
"G",
"HH",
"IH",
"IY",
"JH",
"K",
"L",
"M",
"N",
"NG",
"OW",
"OY",
"P",
"R",
"S",
"SH",
"T",
"TH",
"UH",
"UW",
"V",
"W",
"Y",
"Z",
"ZH",
" "
]
_SPLITS = ["train", "valid", "test"]
class LJSpeech(datasets.GeneratorBasedBuilder):
def __init__(self, base_url=None, splits=None, *args, **kwargs):
super().__init__(*args, **kwargs)
self.base_url = base_url or _BASE_URL
self.splits = splits or _SPLITS
def _info(self):
return datasets.DatasetInfo(
description=_DESCRIPTION,
features=datasets.Features(
{
"char": datasets.Value("string"),
"phn_raw": datasets.Sequence(datasets.Value("string")),
"phn": datasets.Sequence(datasets.ClassLabel(names=_PHONEMES)),
"wav": datasets.Value("string"),
},
),
supervised_keys=None,
homepage=_HOMEPAGE_URL,
)
def _get_url(self, split):
return f'{self.base_url}/ljspeech_{split}.json'
def _split_generator(self, dl_manager, split):
url = self._get_url(split)
path = dl_manager.download_and_extract(url)
return datasets.SplitGenerator(
name=split,
gen_kwargs={"datapath": path, "datatype": split},
)
def _split_generators(self, dl_manager):
return [
self._split_generator(dl_manager, split)
for split in self.splits
]
def _generate_examples(self, datapath, datatype):
with open(datapath, encoding="utf-8") as f:
data = json.load(f)
for item_id, item in data.items():
resp = {
"char": item["char"],
"phn": item["phn"],
"phn_raw": item["phn"],
"wav": item["wav"]
}
yield item_id, resp
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