FunASR/fun_text_processing/text_normalization/ru/verbalizers/electronic.py

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2024-05-18 15:50:56 +08:00
import pynini
from fun_text_processing.text_normalization.en.graph_utils import GraphFst
from fun_text_processing.text_normalization.ru.alphabet import RU_ALPHA
from pynini.lib import pynutil
class ElectronicFst(GraphFst):
"""
Finite state transducer for verbalizing electronic
e.g. electronic { username: "эй би собака эн ди точка ру" } -> "эй би собака эн ди точка ру"
Args:
deterministic: if True will provide a single transduction option,
for False multiple transduction are generated (used for audio-based normalization)
"""
def __init__(self, deterministic: bool = True):
super().__init__(name="electronic", kind="verbalize", deterministic=deterministic)
graph = pynutil.delete('username: "') + pynini.closure(RU_ALPHA | " ") + pynutil.delete('"')
delete_tokens = self.delete_tokens(graph)
self.fst = delete_tokens.optimize()