"""
Alignment multiprocessing functions
-----------------------------------
"""
from __future__ import annotations
import collections
import json
import logging
import multiprocessing as mp
import os
import shutil
import statistics
import sys
import time
import traceback
import typing
from pathlib import Path
from queue import Empty
from typing import TYPE_CHECKING
import numpy as np
import sqlalchemy
from _kalpy import feat as kalpy_feat
from _kalpy import transform as kalpy_transform
from _kalpy.gmm import gmm_compute_likes
from _kalpy.hmm import TransitionModel
from _kalpy.matrix import FloatMatrix, FloatSubMatrix
from _kalpy.util import RandomAccessBaseDoubleMatrixReader, RandomAccessBaseFloatMatrixReader
from kalpy.data import Segment
from kalpy.decoder.data import FstArchive
from kalpy.decoder.training_graphs import TrainingGraphCompiler
from kalpy.feat.mfcc import MfccComputer
from kalpy.feat.pitch import PitchComputer
from kalpy.fstext.lexicon import LexiconCompiler
from kalpy.gmm.align import GmmAligner
from kalpy.gmm.data import AlignmentArchive, TranscriptionArchive
from kalpy.gmm.train import GmmStatsAccumulator
from kalpy.gmm.utils import read_gmm_model
from kalpy.utils import generate_read_specifier, read_kaldi_object
from sqlalchemy.orm import joinedload, selectinload, subqueryload
from montreal_forced_aligner.abc import KaldiFunction
from montreal_forced_aligner.data import (
WORD_BEGIN_SYMBOL,
WORD_END_SYMBOL,
MfaArguments,
PhoneType,
PronunciationProbabilityCounter,
WordType,
)
from montreal_forced_aligner.db import (
CorpusWorkflow,
File,
Job,
Phone,
PhoneInterval,
SoundFile,
Speaker,
TextFile,
Utterance,
Word,
)
from montreal_forced_aligner.exceptions import AlignmentCollectionError, AlignmentExportError
from montreal_forced_aligner.helper import mfa_open, split_phone_position
from montreal_forced_aligner.textgrid import (
construct_output_path,
construct_output_tiers,
export_textgrid,
)
from montreal_forced_aligner.utils import thread_logger
if TYPE_CHECKING:
from dataclasses import dataclass
from montreal_forced_aligner.abc import MetaDict
else:
from dataclassy import dataclass
__all__ = [
"AlignmentExtractionFunction",
"ExportTextGridProcessWorker",
"AlignmentExtractionArguments",
"ExportTextGridArguments",
"AlignFunction",
"AnalyzeAlignmentsFunction",
"AlignArguments",
"AnalyzeAlignmentsArguments",
"AccStatsFunction",
"AccStatsArguments",
"CompileTrainGraphsFunction",
"CompileTrainGraphsArguments",
"GeneratePronunciationsArguments",
"GeneratePronunciationsFunction",
"FineTuneArguments",
"FineTuneFunction",
"PhoneConfidenceArguments",
"PhoneConfidenceFunction",
]
logger = logging.getLogger("mfa")
[docs]
@dataclass
class GeneratePronunciationsArguments(MfaArguments):
"""
Arguments for :func:`~montreal_forced_aligner.alignment.multiprocessing.GeneratePronunciationsFunction`
Parameters
----------
job_name: int
Integer ID of the job
db_string: str
String for database connections
log_path: :class:`~pathlib.Path`
Path to save logging information during the run
text_int_paths: dict[int, Path]
Per dictionary text SCP paths
ali_paths: dict[int, Path]
Per dictionary alignment paths
model_path: :class:`~pathlib.Path`
Acoustic model path
for_g2p: bool
Flag for training a G2P model with acoustic information
"""
aligner: GmmAligner
lexicon_compilers: typing.Dict[int, LexiconCompiler]
for_g2p: bool
[docs]
@dataclass
class ExportTextGridArguments(MfaArguments):
"""
Arguments for :class:`~montreal_forced_aligner.alignment.multiprocessing.ExportTextGridProcessWorker`
Parameters
----------
job_name: int
Integer ID of the job
db_string: str
String for database connections
log_path: :class:`~pathlib.Path`
Path to save logging information during the run
export_frame_shift: float
Frame shift in seconds
cleanup_textgrids: bool
Flag to cleanup silences and recombine words
clitic_marker: str
Marker indicating clitics
output_directory: :class:`~pathlib.Path`
Directory for exporting
output_format: str
Format to export
include_original_text: bool
Flag for including original unnormalized text as a tier
"""
export_frame_shift: float
cleanup_textgrids: bool
clitic_marker: str
output_directory: Path
output_format: str
include_original_text: bool
[docs]
@dataclass
class CompileTrainGraphsArguments(MfaArguments):
"""
Arguments for :class:`~montreal_forced_aligner.alignment.multiprocessing.CompileTrainGraphsFunction`
Parameters
----------
job_name: int
Integer ID of the job
db_string: str
String for database connections
log_path: :class:`~pathlib.Path`
Path to save logging information during the run
tree_path: :class:`~pathlib.Path`
Path to tree file
model_path: :class:`~pathlib.Path`
Path to model file
use_g2p: bool
Flag for whether acoustic model uses g2p
"""
working_directory: Path
lexicon_compilers: typing.Dict[int, LexiconCompiler]
tree_path: Path
model_path: Path
use_g2p: bool
[docs]
@dataclass
class AlignArguments(MfaArguments):
"""
Arguments for :class:`~montreal_forced_aligner.alignment.multiprocessing.AlignFunction`
Parameters
----------
job_name: int
Integer ID of the job
db_string: str
String for database connections
log_path: :class:`~pathlib.Path`
Path to save logging information during the run
model_path: :class:`~pathlib.Path`
Path to model file
align_options: dict[str, Any]
Alignment options
confidence: bool
Flag for outputting confidence
"""
working_directory: Path
model_path: Path
align_options: MetaDict
confidence: bool
final: bool
@dataclass
class AnalyzeAlignmentsArguments(MfaArguments):
"""
Arguments for :class:`~montreal_forced_aligner.alignment.multiprocessing.AnalyzeAlignmentsFunction`
Parameters
----------
job_name: int
Integer ID of the job
db_string: str
String for database connections
log_path: :class:`~pathlib.Path`
Path to save logging information during the run
model_path: :class:`~pathlib.Path`
Path to model file
align_options: dict[str, Any]
Alignment options
"""
model_path: Path
align_options: MetaDict
[docs]
@dataclass
class FineTuneArguments(MfaArguments):
"""
Arguments for :class:`~montreal_forced_aligner.alignment.multiprocessing.AlignFunction`
Parameters
----------
job_name: int
Integer ID of the job
db_string: str
String for database connections
log_path: :class:`~pathlib.Path`
Path to save logging information during the run
tree_path: :class:`~pathlib.Path`
Path to tree file
model_path: :class:`~pathlib.Path`
Path to model file
frame_shift: int
Frame shift in ms
mfcc_options: dict[str, Any]
MFCC computation options
pitch_options: dict[str, Any]
Pitch computation options
align_options: dict[str, Any]
Alignment options
position_dependent_phones: bool
Flag for whether to use position dependent phones
grouped_phones: dict[str, list[str]]
Grouped lists of phones
"""
mfcc_computer: MfccComputer
pitch_computer: typing.Optional[PitchComputer]
lexicon_compiler: LexiconCompiler
model_path: Path
tree_path: Path
align_options: MetaDict
phone_to_group_mapping: typing.Dict[str, str]
original_frame_shift: float
[docs]
@dataclass
class PhoneConfidenceArguments(MfaArguments):
"""
Arguments for :class:`~montreal_forced_aligner.alignment.multiprocessing.AlignFunction`
Parameters
----------
job_name: int
Integer ID of the job
db_string: str
String for database connections
log_path: :class:`~pathlib.Path`
Path to save logging information during the run
model_path: :class:`~pathlib.Path`
Path to model file
phone_pdf_counts_path: :class:`~pathlib.Path`
Path to output PDF counts
"""
working_directory: Path
model_path: Path
phone_pdf_counts_path: Path
[docs]
@dataclass
class AccStatsArguments(MfaArguments):
"""
Arguments for :class:`~montreal_forced_aligner.alignment.multiprocessing.AccStatsFunction`
Parameters
----------
job_name: int
Integer ID of the job
db_string: str
String for database connections
log_path: :class:`~pathlib.Path`
Path to save logging information during the run
working_directory: :class:`~pathlib.Path`
Path to working directory
model_path: :class:`~pathlib.Path`
Path to model file
"""
working_directory: Path
model_path: Path
[docs]
class CompileTrainGraphsFunction(KaldiFunction):
"""
Multiprocessing function to compile training graphs
See Also
--------
:meth:`.AlignMixin.compile_train_graphs`
Main function that calls this function in parallel
:meth:`.AlignMixin.compile_train_graphs_arguments`
Job method for generating arguments for this function
:kaldi_src:`compile-train-graphs`
Relevant Kaldi binary
Parameters
----------
args: :class:`~montreal_forced_aligner.alignment.multiprocessing.CompileTrainGraphsArguments`
Arguments for the function
"""
def __init__(self, args: CompileTrainGraphsArguments):
super().__init__(args)
self.tree_path = args.tree_path
self.lexicon_compilers = args.lexicon_compilers
self.model_path = args.model_path
self.use_g2p = args.use_g2p
def _run(self):
"""Run the function"""
with self.session() as session, thread_logger(
"kalpy.graphs", self.log_path, job_name=self.job_name
) as graph_logger:
graph_logger.debug(f"Tree path: {self.tree_path}")
graph_logger.debug(f"Model path: {self.model_path}")
job = (
session.query(Job)
.options(joinedload(Job.corpus, innerjoin=True), subqueryload(Job.dictionaries))
.filter(Job.id == self.job_name)
.first()
)
workflow: CorpusWorkflow = (
session.query(CorpusWorkflow)
.filter(CorpusWorkflow.current == True) # noqa
.first()
)
if self.use_g2p:
text_column = Utterance.normalized_character_text
else:
text_column = Utterance.normalized_text
for d in job.dictionaries:
begin = time.time()
if self.lexicon_compilers and d.id in self.lexicon_compilers:
lexicon = self.lexicon_compilers[d.id]
else:
lexicon = d.lexicon_compiler
compiler = TrainingGraphCompiler(
self.model_path,
self.tree_path,
lexicon,
lexicon.word_table,
use_g2p=self.use_g2p,
)
graph_logger.debug(f"Set up took {time.time() - begin} seconds")
query = (
session.query(Utterance.kaldi_id, text_column)
.join(Utterance.speaker)
.filter(Utterance.job_id == self.job_name, Speaker.dictionary_id == d.id)
.filter(Utterance.ignored == False) # noqa
.order_by(Utterance.kaldi_id)
)
if job.corpus.current_subset > 0:
query = query.filter(Utterance.in_subset == True) # noqa
graph_logger.info(f"Compiling graphs for {d.name}")
fst_ark_path = job.construct_path(workflow.working_directory, "fsts", "ark", d.id)
compiler.export_graphs(
fst_ark_path,
query,
# callback=self.callback
)
graph_logger.debug(f"Total compilation time: {time.time() - begin} seconds")
del compiler
del self.lexicon_compilers
[docs]
class AccStatsFunction(KaldiFunction):
"""
Multiprocessing function for accumulating stats in GMM training.
See Also
--------
:meth:`.AcousticModelTrainingMixin.acc_stats`
Main function that calls this function in parallel
:meth:`.AcousticModelTrainingMixin.acc_stats_arguments`
Job method for generating arguments for this function
:kaldi_src:`gmm-acc-stats-ali`
Relevant Kaldi binary
Parameters
----------
args: :class:`~montreal_forced_aligner.alignment.multiprocessing.AccStatsArguments`
Arguments for the function
"""
def __init__(self, args: AccStatsArguments):
super().__init__(args)
self.working_directory = args.working_directory
self.model_path = args.model_path
def _run(self) -> typing.Generator[typing.Tuple[int, int]]:
"""Run the function"""
with self.session() as session, thread_logger(
"kalpy.train", self.log_path, job_name=self.job_name
) as train_logger:
job: Job = (
session.query(Job)
.options(joinedload(Job.corpus, innerjoin=True), subqueryload(Job.dictionaries))
.filter(Job.id == self.job_name)
.first()
)
for d in job.dictionaries:
train_logger.debug(f"Accumulating stats for dictionary {d.name} ({d.id})")
train_logger.debug(f"Accumulating stats for model: {self.model_path}")
dict_id = d.id
accumulator = GmmStatsAccumulator(self.model_path)
feature_archive = job.construct_feature_archive(self.working_directory, dict_id)
ali_path = job.construct_path(self.working_directory, "ali", "ark", dict_id)
alignment_archive = AlignmentArchive(ali_path)
train_logger.debug("Feature Archive information:")
train_logger.debug(f"CMVN: {feature_archive.cmvn_read_specifier}")
train_logger.debug(f"Deltas: {feature_archive.use_deltas}")
train_logger.debug(f"Splices: {feature_archive.use_splices}")
train_logger.debug(f"LDA: {feature_archive.lda_mat_file_name}")
train_logger.debug(f"fMLLR: {feature_archive.transform_read_specifier}")
train_logger.debug(f"Alignment path: {ali_path}")
accumulator.accumulate_stats(
feature_archive, alignment_archive, callback=self.callback
)
self.callback((accumulator.transition_accs, accumulator.gmm_accs))
[docs]
class AlignFunction(KaldiFunction):
"""
Multiprocessing function for alignment.
See Also
--------
:meth:`.AlignMixin.align_utterances`
Main function that calls this function in parallel
:meth:`.AlignMixin.align_arguments`
Job method for generating arguments for this function
:kaldi_src:`align-gmm-compiled`
Relevant Kaldi binary
:kaldi_src:`gmm-boost-silence`
Relevant Kaldi binary
Parameters
----------
args: :class:`~montreal_forced_aligner.alignment.multiprocessing.AlignArguments`
Arguments for the function
"""
def __init__(self, args: AlignArguments):
super().__init__(args)
self.working_directory = args.working_directory
self.model_path = args.model_path
self.align_options = args.align_options
self.confidence = args.confidence
self.final = args.final
def _run(self) -> None:
"""Run the function"""
with self.session() as session, thread_logger(
"kalpy.align", self.log_path, job_name=self.job_name
) as align_logger:
align_logger.debug(f"Align options: {self.align_options}")
job: Job = (
session.query(Job)
.options(joinedload(Job.corpus, innerjoin=True), subqueryload(Job.dictionaries))
.filter(Job.id == self.job_name)
.first()
)
align_options = self.align_options
boost_silence = align_options.pop("boost_silence", 1.0)
silence_phones = [
x
for x, in session.query(Phone.mapping_id).filter(
Phone.phone_type == PhoneType.silence, Phone.phone != "<eps>"
)
]
aligner = GmmAligner(
self.model_path,
**align_options,
)
aligner.boost_silence(boost_silence, silence_phones)
for d in job.dictionaries:
align_logger.debug(f"Aligning for dictionary {d.name} ({d.id})")
align_logger.debug(f"Aligning with model: {aligner.acoustic_model_path}")
dict_id = d.id
fst_path = job.construct_path(self.working_directory, "fsts", "ark", dict_id)
align_logger.debug(f"Training graph archive: {fst_path}")
feature_archive = job.construct_feature_archive(self.working_directory, dict_id)
align_logger.debug("Feature Archive information:")
align_logger.debug(f"CMVN: {feature_archive.cmvn_read_specifier}")
align_logger.debug(f"Deltas: {feature_archive.use_deltas}")
align_logger.debug(f"Splices: {feature_archive.use_splices}")
align_logger.debug(f"LDA: {feature_archive.lda_mat_file_name}")
align_logger.debug(f"fMLLR: {feature_archive.transform_read_specifier}")
training_graph_archive = FstArchive(fst_path)
ali_path = job.construct_path(self.working_directory, "ali", "ark", dict_id)
words_path = job.construct_path(self.working_directory, "words", "ark", dict_id)
likes_path = job.construct_path(
self.working_directory, "likelihoods", "ark", dict_id
)
ali_path.unlink(missing_ok=True)
words_path.unlink(missing_ok=True)
likes_path.unlink(missing_ok=True)
if aligner.acoustic_model_path.endswith(".alimdl"):
ali_path = job.construct_path(
self.working_directory, "ali_first_pass", "ark", dict_id
)
words_path = job.construct_path(
self.working_directory, "words_first_pass", "ark", dict_id
)
likes_path = job.construct_path(
self.working_directory, "likelihoods_first_pass", "ark", dict_id
)
aligner.export_alignments(
ali_path,
training_graph_archive,
feature_archive,
word_file_name=words_path,
likelihood_file_name=likes_path,
callback=self.callback,
)
if aligner.acoustic_model_path.endswith(".alimdl"):
try:
job.construct_path(
self.working_directory, "ali", "ark", dict_id
).symlink_to(ali_path)
job.construct_path(
self.working_directory, "words", "ark", dict_id
).symlink_to(words_path)
job.construct_path(
self.working_directory, "likelihoods", "ark", dict_id
).symlink_to(likes_path)
except OSError:
shutil.copyfile(
ali_path,
job.construct_path(self.working_directory, "ali", "ark", dict_id),
)
shutil.copyfile(
words_path,
job.construct_path(self.working_directory, "words", "ark", dict_id),
)
shutil.copyfile(
likes_path,
job.construct_path(
self.working_directory, "likelihoods", "ark", dict_id
),
)
class AnalyzeAlignmentsFunction(KaldiFunction):
"""
Multiprocessing function for analyzing alignments.
See Also
--------
:meth:`.CorpusAligner.analyze_alignments`
Main function that calls this function in parallel
:meth:`.CorpusAligner.calculate_speech_post_arguments`
Job method for generating arguments for this function
:kaldi_src:`lattice-to-post`
Relevant Kaldi binary
:kaldi_src:`weight-silence-post`
Relevant Kaldi binary
Parameters
----------
args: :class:`~montreal_forced_aligner.alignment.multiprocessing.CalculateSpeechPostArguments`
Arguments for the function
"""
def __init__(self, args: AnalyzeAlignmentsArguments):
super().__init__(args)
self.model_path = args.model_path
self.align_options = args.align_options
def _run(self):
"""Run the function"""
with self.session() as session:
job: Job = (
session.query(Job)
.options(joinedload(Job.corpus, innerjoin=True), subqueryload(Job.dictionaries))
.filter(Job.id == self.job_name)
.first()
)
workflow = (
session.query(CorpusWorkflow)
.filter(CorpusWorkflow.current == True) # noqa
.first()
)
phones = {
k: (m, sd)
for k, m, sd in session.query(
Phone.id, Phone.mean_duration, Phone.sd_duration
).filter(
Phone.phone_type == PhoneType.non_silence,
Phone.sd_duration != None, # noqa
Phone.sd_duration != 0,
)
}
query = session.query(Utterance).filter(
Utterance.job_id == job.id, Utterance.alignment_log_likelihood != None # noqa
)
for utterance in query:
phone_intervals = (
session.query(PhoneInterval)
.join(PhoneInterval.phone)
.filter(
PhoneInterval.utterance_id == utterance.id,
PhoneInterval.workflow_id == workflow.id,
Phone.id.in_(list(phones.keys())),
)
.all()
)
if not phone_intervals:
continue
interval_count = len(phone_intervals)
log_like_sum = 0
duration_zscore_max = 0
for pi in phone_intervals:
log_like_sum += pi.phone_goodness
m, sd = phones[pi.phone_id]
duration_zscore = abs((pi.duration - m) / sd)
if duration_zscore > duration_zscore_max:
duration_zscore_max = duration_zscore
utterance_speech_log_likelihood = log_like_sum / interval_count
utterance_duration_deviation = duration_zscore_max
self.callback(
(utterance.id, utterance_speech_log_likelihood, utterance_duration_deviation)
)
[docs]
class FineTuneFunction(KaldiFunction):
"""
Multiprocessing function for fine tuning alignment.
Parameters
----------
args: :class:`~montreal_forced_aligner.alignment.multiprocessing.FineTuneArguments`
Arguments for the function
"""
def __init__(self, args: FineTuneArguments):
super().__init__(args)
self.mfcc_computer = args.mfcc_computer
self.pitch_computer = args.pitch_computer
self.lexicon_compiler = args.lexicon_compiler
self.model_path = args.model_path
self.tree_path = args.tree_path
self.align_options = args.align_options
self.phone_to_group_mapping = args.phone_to_group_mapping
self.frame_shift_seconds = args.original_frame_shift
self.new_frame_shift_seconds = 0.001
self.feature_padding_factor = 4
self.padding = round(self.frame_shift_seconds, 3)
self.splice_frames = 3
def _run(self) -> typing.Generator[typing.Tuple[int, float]]:
"""Run the function"""
with self.session() as session, thread_logger(
"kalpy.align", self.log_path, job_name=self.job_name
):
job = (
session.query(Job)
.options(joinedload(Job.corpus, innerjoin=True), subqueryload(Job.dictionaries))
.filter(Job.id == self.job_name)
.first()
)
workflow: CorpusWorkflow = (
session.query(CorpusWorkflow)
.filter(CorpusWorkflow.current == True) # noqa
.first()
)
phone_mapping = {}
phone_query = session.query(Phone.id, Phone.kaldi_label)
for p_id, phone in phone_query:
phone_mapping[phone] = p_id
disambiguation_symbols = [
x
for x, in session.query(Phone.mapping_id).filter(
Phone.phone_type == PhoneType.disambiguation
)
]
silence_phones = [
x
for x, in session.query(Phone.mapping_id).filter(
Phone.phone_type.in_([PhoneType.silence])
)
]
cmvn_paths = job.per_dictionary_cmvn_scp_paths
trans_paths = job.per_dictionary_trans_scp_paths
compiler = TrainingGraphCompiler(
self.model_path,
self.tree_path,
self.lexicon_compiler,
self.lexicon_compiler.word_table,
)
for d_id in job.dictionary_ids:
utterance_query = (
session.query(Utterance, SoundFile.sound_file_path)
.join(Utterance.file)
.join(Utterance.speaker)
.join(File.sound_file)
.filter(Utterance.job_id == self.job_name, Speaker.dictionary_id == d_id)
.order_by(Utterance.kaldi_id)
)
boost_silence = self.align_options.pop("boost_silence", 1.0)
aligner = GmmAligner(
self.model_path,
disambiguation_symbols=disambiguation_symbols,
**self.align_options,
)
if boost_silence != 1.0:
aligner.boost_silence(boost_silence, silence_phones)
delta_options = kalpy_feat.DeltaFeaturesOptions()
use_splices = False
use_deltas = True
lda_mat = None
if workflow.lda_mat_path.exists():
use_splices = True
use_deltas = False
lda_mat = read_kaldi_object(FloatMatrix, workflow.lda_mat_path)
cmvn_reader = None
cmvn_path = cmvn_paths[d_id]
if cmvn_path.exists():
cmvn_read_specifier = generate_read_specifier(cmvn_path)
cmvn_reader = RandomAccessBaseDoubleMatrixReader(cmvn_read_specifier)
fmllr_path = trans_paths[d_id]
transform_reader = None
if fmllr_path.exists():
transform_read_specifier = generate_read_specifier(fmllr_path)
transform_reader = RandomAccessBaseFloatMatrixReader(transform_read_specifier)
current_speaker = None
current_transform = None
current_cmvn = None
for utterance, sf_path in utterance_query:
interval_query = (
session.query(PhoneInterval, Phone.kaldi_label)
.join(PhoneInterval.phone)
.filter(
PhoneInterval.utterance_id == utterance.id,
PhoneInterval.workflow_id == workflow.id,
)
.order_by(PhoneInterval.begin)
)
prev_label = None
if utterance.speaker_id != current_speaker:
current_speaker = utterance.speaker_id
if cmvn_reader is not None and cmvn_reader.HasKey(str(current_speaker)):
current_cmvn = cmvn_reader.Value(str(current_speaker))
if transform_reader is not None and transform_reader.HasKey(
str(current_speaker)
):
current_transform = transform_reader.Value(str(current_speaker))
interval_mapping = []
for interval, phone in interval_query:
if prev_label is None:
prev_label = phone
interval_mapping.append(
{"id": interval.id, "begin": interval.begin, "end": interval.end}
)
continue
segment_begin = max(round(interval.begin - self.padding, 4), 0)
feature_segment_begin = max(
round(
interval.begin - (self.padding * self.feature_padding_factor), 4
),
0,
)
segment_end = min(round(interval.begin + self.padding, 4), utterance.end)
feature_segment_end = min(
round(
interval.begin + (self.padding * self.feature_padding_factor), 4
),
utterance.end,
)
begin_offset = round(segment_begin - feature_segment_begin, 4)
end_offset = round(segment_end - feature_segment_begin, 4)
segment = Segment(
sf_path, feature_segment_begin, feature_segment_end, utterance.channel
)
text = f"{self.phone_to_group_mapping[prev_label]} {self.phone_to_group_mapping[phone]}"
train_graph = compiler.compile_fst(text)
prev_label = phone
feats = self.mfcc_computer.compute_mfccs_for_export(
segment, compress=False
)
if current_cmvn is not None:
kalpy_transform.ApplyCmvn(current_cmvn, False, feats)
if self.pitch_computer is not None:
pitch = self.pitch_computer.compute_pitch_for_export(
segment, compress=False
)
feats = kalpy_feat.paste_feats([feats, pitch], 0)
if use_deltas:
feats = kalpy_feat.compute_deltas(delta_options, feats)
elif use_splices:
feats = kalpy_feat.splice_frames(
feats, self.splice_frames, self.splice_frames
)
if lda_mat is not None:
feats = kalpy_transform.apply_transform(feats, lda_mat)
if current_transform is not None:
feats = kalpy_transform.apply_transform(feats, current_transform)
start_samp = int(round(begin_offset * 1000))
end_samp = int(round(end_offset * 1000))
sub_matrix = FloatSubMatrix(
feats, start_samp, end_samp - start_samp, 0, feats.NumCols()
)
feats = FloatMatrix(sub_matrix)
alignment = aligner.align_utterance(train_graph, feats)
ctm_intervals = alignment.generate_ctm(
aligner.transition_model, self.lexicon_compiler.phone_table
)
interval_mapping.append(
{
"id": interval.id,
"begin": round(ctm_intervals[1].begin + feature_segment_begin, 4),
"end": interval.end,
"label": phone_mapping[ctm_intervals[1].label],
}
)
deletions = []
while True:
for i in range(len(interval_mapping) - 1):
if interval_mapping[i]["end"] != interval_mapping[i + 1]["begin"]:
interval_mapping[i]["end"] = interval_mapping[i + 1]["begin"]
new_deletions = [
x["id"] for x in interval_mapping if x["begin"] >= x["end"]
]
interval_mapping = [
x for x in interval_mapping if x["id"] not in new_deletions
]
deletions.extend(new_deletions)
if not new_deletions and all(
interval_mapping[i]["end"] == interval_mapping[i + 1]["begin"]
for i in range(len(interval_mapping) - 1)
):
break
self.callback((interval_mapping, deletions))
[docs]
class PhoneConfidenceFunction(KaldiFunction):
"""
Multiprocessing function to calculate phone confidence metrics
See Also
--------
:kaldi_src:`gmm-compute-likes`
Relevant Kaldi binary
:kaldi_src:`transform-feats`
Relevant Kaldi binary
Parameters
----------
args: :class:`~montreal_forced_aligner.alignment.multiprocessing.PhoneConfidenceArguments`
Arguments for the function
"""
def __init__(self, args: PhoneConfidenceArguments):
super().__init__(args)
self.working_directory = args.working_directory
self.model_path = args.model_path
self.phone_pdf_counts_path = args.phone_pdf_counts_path
def _run(self):
"""Run the function"""
with mfa_open(self.phone_pdf_counts_path, "r") as f:
data = json.load(f)
phone_pdf_mapping = collections.defaultdict(collections.Counter)
for phone, pdf_counts in data.items():
phone = split_phone_position(phone)[0]
for pdf, count in pdf_counts.items():
phone_pdf_mapping[phone][int(pdf)] += count
phones = {p: i for i, p in enumerate(sorted(phone_pdf_mapping.keys()))}
reversed_phones = {k: v for v, k in phones.items()}
for phone, pdf_counts in phone_pdf_mapping.items():
phone_total = sum(pdf_counts.values())
for pdf, count in pdf_counts.items():
phone_pdf_mapping[phone][int(pdf)] = count / phone_total
_, acoustic_model = read_gmm_model(self.model_path)
with self.session() as session:
job: typing.Optional[Job] = session.get(
Job, self.job_name, options=[joinedload(Job.dictionaries), joinedload(Job.corpus)]
)
utterances = (
session.query(Utterance)
.filter(Utterance.job_id == self.job_name)
.options(
selectinload(Utterance.phone_intervals).joinedload(
PhoneInterval.phone, innerjoin=True
)
)
)
utterances = {u.id: (u.begin, u.phone_intervals) for u in utterances}
for dict_id in job.dictionary_ids:
feature_archive = job.construct_feature_archive(self.working_directory, dict_id)
interval_mappings = []
for utterance_id, feats in feature_archive:
utterance_id = int(utterance_id.split("-")[-1])
likelihoods = gmm_compute_likes(acoustic_model, feats).numpy()
phone_likes = np.zeros((likelihoods.shape[0], len(phones)))
for i, p in reversed_phones.items():
like = likelihoods[:, [x for x in phone_pdf_mapping[p].keys()]]
weight = np.array([x for x in phone_pdf_mapping[p].values()])
phone_likes[:, i] = np.dot(like, weight)
top_phone_inds = np.argmax(phone_likes, axis=1)
utt_begin, intervals = utterances[utterance_id]
for pi in intervals:
if pi.phone.phone == "sil":
continue
frame_begin = int(((pi.begin - utt_begin) * 1000) / 10)
frame_end = int(((pi.end - utt_begin) * 1000) / 10)
if frame_begin == frame_end:
frame_end += 1
frame_end = min(frame_end, top_phone_inds.shape[0])
alternate_labels = collections.Counter()
scores = []
for i in range(frame_begin, frame_end):
top_phone_ind = top_phone_inds[i]
alternate_label = reversed_phones[top_phone_ind]
alternate_label = split_phone_position(alternate_label)[0]
alternate_labels[alternate_label] += 1
if alternate_label == pi.phone.phone:
scores.append(0)
else:
actual_score = phone_likes[i, phones[pi.phone.phone]]
scores.append(phone_likes[i, top_phone_ind] - actual_score)
average_score = statistics.mean(scores)
interval_mappings.append({"id": pi.id, "phone_goodness": average_score})
self.callback(interval_mappings)
interval_mappings = []
[docs]
class GeneratePronunciationsFunction(KaldiFunction):
"""
Multiprocessing function for generating pronunciations
See Also
--------
:meth:`.DictionaryTrainer.export_lexicons`
Main function that calls this function in parallel
:meth:`.CorpusAligner.generate_pronunciations_arguments`
Job method for generating arguments for this function
:kaldi_src:`linear-to-nbest`
Kaldi binary this uses
Parameters
----------
args: :class:`~montreal_forced_aligner.alignment.multiprocessing.AlignArguments`
Arguments for the function
"""
def __init__(self, args: GeneratePronunciationsArguments):
super().__init__(args)
self.aligner = args.aligner
self.lexicon_compilers = args.lexicon_compilers
self.for_g2p = args.for_g2p
self.silence_words = set()
def _process_pronunciations(
self, word_pronunciations: typing.List[typing.Tuple[str, str]]
) -> PronunciationProbabilityCounter:
"""
Process an utterance's pronunciations and extract relevant count information
Parameters
----------
word_pronunciations: list[tuple[str, tuple[str, ...]]]
List of tuples containing the word integer ID and a list of the integer IDs of the phones
"""
counter = PronunciationProbabilityCounter()
word_pronunciations = [("<s>", "")] + word_pronunciations + [("</s>", "")]
for i, w_p in enumerate(word_pronunciations):
if i != 0:
word = word_pronunciations[i - 1][0]
if word in self.silence_words:
counter.silence_before_counts[w_p] += 1
else:
counter.non_silence_before_counts[w_p] += 1
silence_check = w_p[0] in self.silence_words
if not silence_check:
counter.word_pronunciation_counts[w_p[0]][w_p[1]] += 1
if i != len(word_pronunciations) - 1:
word = word_pronunciations[i + 1][0]
if word in self.silence_words:
counter.silence_following_counts[w_p] += 1
if i != len(word_pronunciations) - 2:
next_w_p = word_pronunciations[i + 2]
counter.ngram_counts[w_p, next_w_p]["silence"] += 1
else:
next_w_p = word_pronunciations[i + 1]
counter.non_silence_following_counts[w_p] += 1
counter.ngram_counts[w_p, next_w_p]["non_silence"] += 1
return counter
def _run(self) -> None:
"""Run the function"""
with self.session() as session:
job = (
session.query(Job)
.options(joinedload(Job.corpus, innerjoin=True), subqueryload(Job.dictionaries))
.filter(Job.id == self.job_name)
.first()
)
workflow: CorpusWorkflow = (
session.query(CorpusWorkflow)
.filter(CorpusWorkflow.current == True) # noqa
.first()
)
silence_words = session.query(Word.word).filter(Word.word_type == WordType.silence)
self.silence_words.update(x for x, in silence_words)
for d in job.dictionaries:
ali_path = job.construct_path(workflow.working_directory, "ali", "ark", d.id)
if not os.path.exists(ali_path):
continue
utts = (
session.query(Utterance.id, Utterance.normalized_text)
.join(Utterance.speaker)
.filter(Utterance.job_id == self.job_name)
.filter(Speaker.dictionary_id == d.id)
)
utterance_texts = {}
for u_id, text in utts:
utterance_texts[u_id] = text
if self.lexicon_compilers and d.id in self.lexicon_compilers:
lexicon_compiler = self.lexicon_compilers[d.id]
else:
lexicon_compiler = d.lexicon_compiler
words_path = job.construct_path(workflow.working_directory, "words", "ark", d.id)
alignment_archive = AlignmentArchive(ali_path, words_file_name=words_path)
for alignment in alignment_archive:
intervals = alignment.generate_ctm(
self.aligner.transition_model, lexicon_compiler.phone_table
)
utterance = int(alignment.utterance_id.split("-")[-1])
ctm = lexicon_compiler.phones_to_pronunciations(alignment.words, intervals)
word_pronunciations = [(x.label, x.pronunciation) for x in ctm.word_intervals]
# word_pronunciations = [
# x if x[1] != OOV_PHONE else (OOV_WORD, OOV_PHONE)
# for x in word_pronunciations
# ]
if self.for_g2p:
phones = []
for i, x in enumerate(word_pronunciations):
if i > 0 and (
x[0].startswith(d.clitic_marker)
or word_pronunciations[i - 1][0].endswith(d.clitic_marker)
):
phones.pop(-1)
else:
phones.append(WORD_BEGIN_SYMBOL)
phones.extend(x[1].split())
phones.append(WORD_END_SYMBOL)
self.callback((d.id, utterance, " ".join(phones)))
else:
self.callback((d.id, self._process_pronunciations(word_pronunciations)))
[docs]
class ExportTextGridProcessWorker(mp.Process):
"""
Multiprocessing worker for exporting TextGrids
See Also
--------
:meth:`.CorpusAligner.collect_alignments`
Main function that runs this worker in parallel
Parameters
----------
for_write_queue: :class:`~multiprocessing.Queue`
Input queue of files to export
stopped: :class:`~multiprocessing.Event`
Stop check for processing
finished_adding: :class:`~multiprocessing.Event`
Input signal that all jobs have been added and no more new ones will come in
textgrid_errors: dict[str, str]
Dictionary for storing errors encountered
arguments: :class:`~montreal_forced_aligner.alignment.multiprocessing.ExportTextGridArguments`
Arguments to pass to the TextGrid export function
exported_file_count: :class:`~montreal_forced_aligner.utils.Counter`
Counter for exported files
"""
def __init__(
self,
db_string: str,
for_write_queue: mp.Queue,
return_queue: mp.Queue,
stopped: mp.Event,
finished_adding: mp.Event,
export_frame_shift: float,
cleanup_textgrids: bool,
clitic_marker: str,
output_directory: Path,
output_format: str,
include_original_text: bool,
):
super().__init__()
self.db_string = db_string
self.for_write_queue = for_write_queue
self.return_queue = return_queue
self.stopped = stopped
self.finished_adding = finished_adding
self.finished_processing = mp.Event()
self.output_directory = output_directory
self.output_format = output_format
self.export_frame_shift = export_frame_shift
self.include_original_text = include_original_text
self.cleanup_textgrids = cleanup_textgrids
self.clitic_marker = clitic_marker
[docs]
def run(self) -> None:
"""Run the exporter function"""
db_engine = sqlalchemy.create_engine(self.db_string)
with sqlalchemy.orm.Session(db_engine) as session:
workflow: CorpusWorkflow = (
session.query(CorpusWorkflow)
.filter(CorpusWorkflow.current == True) # noqa
.first()
)
while True:
try:
(
file_id,
name,
relative_path,
duration,
text_file_path,
) = self.for_write_queue.get(timeout=1)
except Empty:
if self.finished_adding.is_set():
self.finished_processing.set()
break
continue
if self.stopped.is_set():
continue
try:
output_path = construct_output_path(
name,
relative_path,
self.output_directory,
text_file_path,
self.output_format,
)
data = construct_output_tiers(
session,
file_id,
workflow,
self.cleanup_textgrids,
self.clitic_marker,
self.include_original_text,
)
export_textgrid(
data, output_path, duration, self.export_frame_shift, self.output_format
)
self.return_queue.put(1)
except Exception:
exc_type, exc_value, exc_traceback = sys.exc_info()
self.return_queue.put(
AlignmentExportError(
output_path,
traceback.format_exception(exc_type, exc_value, exc_traceback),
)
)
self.stopped.set()
