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# Copyright (c) 2022 PaddlePaddle Authors. All Rights Reserved.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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"""
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Convert the PaddleSpeech jsonline format data to csv format data in voxceleb experiment.
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Currently, Speaker Identificaton Training process use csv format.
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"""
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import argparse
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import csv
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import os
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from typing import List
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import tqdm
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from yacs.config import CfgNode
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from paddleaudio import load as load_audio
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from paddlespeech.s2t.utils.log import Log
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from paddlespeech.vector.utils.vector_utils import get_chunks
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logger = Log(__name__).getlog()
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def get_chunks_list(wav_file: str,
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split_chunks: bool,
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base_path: str,
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chunk_duration: float=3.0) -> List[List[str]]:
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"""Get the single audio file info
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Args:
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wav_file (list): the wav audio file and get this audio segment info list
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split_chunks (bool): audio split flag
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base_path (str): the audio base path
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chunk_duration (float): the chunk duration.
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if set the split_chunks, we split the audio into multi-chunks segment.
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"""
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waveform, sr = load_audio(wav_file)
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audio_id = wav_file.split("/rir_noise/")[-1].split(".")[0]
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audio_duration = waveform.shape[0] / sr
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ret = []
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if split_chunks and audio_duration > chunk_duration: # Split into pieces of self.chunk_duration seconds.
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uniq_chunks_list = get_chunks(chunk_duration, audio_id, audio_duration)
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for idx, chunk in enumerate(uniq_chunks_list):
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s, e = chunk.split("_")[-2:] # Timestamps of start and end
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start_sample = int(float(s) * sr)
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end_sample = int(float(e) * sr)
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# currently, all vector csv data format use one representation
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# id, duration, wav, start, stop, label
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# in rirs noise, all the label name is 'noise'
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# the label is string type and we will convert it to integer type in training
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ret.append([
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chunk, audio_duration, wav_file, start_sample, end_sample,
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"noise"
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])
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else: # Keep whole audio.
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ret.append(
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[audio_id, audio_duration, wav_file, 0, waveform.shape[0], "noise"])
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return ret
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def generate_csv(wav_files,
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output_file: str,
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base_path: str,
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split_chunks: bool=True):
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"""Prepare the csv file according the wav files
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Args:
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wav_files (list): all the audio list to prepare the csv file
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output_file (str): the output csv file
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config (CfgNode): yaml configuration content
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split_chunks (bool): audio split flag
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"""
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logger.info(f'Generating csv: {output_file}')
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header = ["utt_id", "duration", "wav", "start", "stop", "label"]
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csv_lines = []
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for item in tqdm.tqdm(wav_files):
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csv_lines.extend(
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get_chunks_list(
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item, base_path=base_path, split_chunks=split_chunks))
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if not os.path.exists(os.path.dirname(output_file)):
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os.makedirs(os.path.dirname(output_file))
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with open(output_file, mode="w") as csv_f:
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csv_writer = csv.writer(
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csv_f, delimiter=",", quotechar='"', quoting=csv.QUOTE_MINIMAL)
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csv_writer.writerow(header)
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for line in csv_lines:
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csv_writer.writerow(line)
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def prepare_data(args, config):
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"""Convert the jsonline format to csv format
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Args:
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args (argparse.Namespace): scripts args
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config (CfgNode): yaml configuration content
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"""
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# if external config set the skip_prep flat, we will do nothing
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if config.skip_prep:
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return
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base_path = args.noise_dir
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wav_path = os.path.join(base_path, "RIRS_NOISES")
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logger.info(f"base path: {base_path}")
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logger.info(f"wav path: {wav_path}")
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rir_list = os.path.join(wav_path, "real_rirs_isotropic_noises", "rir_list")
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rir_files = []
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with open(rir_list, 'r') as f:
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for line in f.readlines():
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rir_file = line.strip().split(' ')[-1]
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rir_files.append(os.path.join(base_path, rir_file))
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noise_list = os.path.join(wav_path, "pointsource_noises", "noise_list")
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noise_files = []
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with open(noise_list, 'r') as f:
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for line in f.readlines():
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noise_file = line.strip().split(' ')[-1]
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noise_files.append(os.path.join(base_path, noise_file))
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csv_path = os.path.join(args.data_dir, 'csv')
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logger.info(f"csv path: {csv_path}")
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generate_csv(
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rir_files, os.path.join(csv_path, 'rir.csv'), base_path=base_path)
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generate_csv(
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noise_files, os.path.join(csv_path, 'noise.csv'), base_path=base_path)
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if __name__ == "__main__":
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parser = argparse.ArgumentParser(description=__doc__)
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parser.add_argument(
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"--noise_dir",
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default=None,
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required=True,
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help="The noise dataset dataset directory.")
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parser.add_argument(
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"--data_dir",
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default=None,
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required=True,
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help="The target directory stores the csv files")
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parser.add_argument(
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"--config",
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default=None,
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required=True,
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type=str,
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help="configuration file")
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args = parser.parse_args()
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# parse the yaml config file
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config = CfgNode(new_allowed=True)
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if args.config:
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config.merge_from_file(args.config)
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# prepare the csv file from jsonlines files
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prepare_data(args, config)
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