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https://huggingface.co/datasets/Yaraan/burushaski-data/resolve/main/preprocessor.py
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curl -L -o preprocessor.py https://huggingface.co/datasets/Yaraan/burushaski-data/resolve/main/preprocessor.py
5.84 kB
| from pathlib import Path | |
| import json | |
| import os | |
| from tqdm import tqdm | |
| import random | |
| import argparse | |
| import yaml | |
| import numpy as np | |
| import pickle | |
| def parse_speaker(path, method): | |
| # parse the hubert code path | |
| if type(path) == str: | |
| path = Path(path) | |
| if method == "_": | |
| return path.name.split("_")[0] | |
| elif method == "single": | |
| return "A" | |
| else: | |
| raise NotImplementedError() | |
| def adjust_duration(total_codes, durations): | |
| """ | |
| Adjusts the durations list so that the sum of its elements equals the provided total_codes. | |
| If the adjustment is not possible or the difference is greater than 2, returns None. | |
| Args: | |
| total_codes (int): The desired sum of the durations list. | |
| durations (list[int]): The list of durations to be adjusted. | |
| Returns: | |
| list[int] or None: The adjusted list of durations or None if adjustment is not possible. | |
| """ | |
| total_duration = sum(durations) | |
| difference = total_duration - total_codes | |
| if difference == 0: | |
| return durations | |
| if abs(difference) > 2: | |
| print("Unable to adjust durations. The difference is greater than 2.") | |
| return None | |
| if difference < 0: | |
| durations[-1] += abs(difference) | |
| return durations | |
| if difference > 0: | |
| remaining = difference | |
| idxs_by_size = sorted(range(len(durations)), key=lambda i: -durations[i]) | |
| for i in idxs_by_size: | |
| if remaining == 0: | |
| break | |
| take = min(remaining, durations[i] - 1) if durations[i] > 1 else 0 | |
| durations[i] -= take | |
| remaining -= take | |
| if remaining == 0: | |
| return durations | |
| print("Unable to adjust durations: no element/combo could absorb the difference.") | |
| return None | |
| class Preprocessor: | |
| # take as input the list of hubert dictionaries and extract durations | |
| # we write two files: train.txt and val.txt | |
| # each file is a similar list of dictionaries with keys as follows: | |
| # audio: path to original wav | |
| # hubert: space separated string of hubert tokens | |
| # speaker: speaker id | |
| def __init__(self, config): | |
| self.config = config | |
| self.root_dir = Path(config["path"]["root_path"]) | |
| self.hubert_path = config["path"]["hubert_path"] | |
| self.speaker_method = config["preprocess"]["speaker"] | |
| self.val_size = config["preprocess"]["val_size"] | |
| self.alignment_dir = Path(config["path"]["alignment_path"]) | |
| def build_from_path(self): | |
| print("Processing data...") | |
| with open(self.hubert_path) as f: | |
| hubert_lines = f.readlines() | |
| speaker_set = set() | |
| random.shuffle(hubert_lines) | |
| processed_lines = list() | |
| skipped_lines = 0 | |
| # load all characters found in the dataset | |
| with open(self.alignment_dir / "symbols.pkl", "rb") as f: | |
| symbols = pickle.load(f) | |
| for l in tqdm(hubert_lines): | |
| # load dict containing audio path, hubert units and total duration | |
| data_dict = json.loads(l.strip().replace("'", '"')) | |
| # get basename | |
| basename = Path(data_dict["audio"]).stem | |
| # get speaker | |
| speaker = parse_speaker(data_dict["audio"], method=self.speaker_method) | |
| speaker_set.add(speaker) | |
| data_dict['speaker'] = speaker | |
| # get tokens obtained from DFA training | |
| if not os.path.exists(self.alignment_dir / "{}/tokens/{}.npy".format(speaker,basename)): | |
| continue | |
| tokens = np.load(self.alignment_dir / "{}/tokens/{}.npy".format(speaker,basename)) | |
| # get characters from tokens. replace ' ' with 'sil' character | |
| characters = ['sil' if symbols[i-1] == ' ' else symbols[i-1] for i in tokens] | |
| # get durations obtained from DFA training | |
| if not os.path.exists(self.alignment_dir / "{}/outputs/durations/{}.npy".format(speaker,basename)): | |
| continue | |
| durations = np.load(self.alignment_dir / "{}/outputs/durations/{}.npy".format(speaker,basename)) | |
| # adjust durations with HuBERT units | |
| durations = adjust_duration(len(data_dict['hubert'].split()), durations) | |
| if durations is None: | |
| skipped_lines+=1 | |
| continue | |
| assert sum(durations) == len(data_dict['hubert'].split()), f"{sum(durations)}, {len(data_dict['hubert'].split())}" | |
| data_dict['characters'] = " ".join(characters) | |
| data_dict['duration'] = " ".join([str(i) for i in durations]) | |
| processed_lines.append(data_dict) | |
| print("Total skipped lines: ", skipped_lines) | |
| if not os.path.exists(self.root_dir): | |
| os.makedirs(self.root_dir) | |
| # save speakers dictionary | |
| with open(self.root_dir / "speakers.json", 'w') as f: | |
| speaker_dict = {s:i for i,s in enumerate(speaker_set)} | |
| print("saving speakers.json") | |
| json.dump(speaker_dict, f) | |
| with open(self.root_dir / "train.txt", 'w') as f: | |
| for line in processed_lines[self.val_size:]: | |
| f.write(str(line) + "\n") | |
| with open(self.root_dir / "val.txt", 'w') as f: | |
| for line in processed_lines[:self.val_size]: | |
| f.write(str(line) + "\n") | |
| if __name__ == "__main__": | |
| parser = argparse.ArgumentParser() | |
| parser.add_argument("config", type=str, default="utils/TTE/TTE_config.yaml", help="path to config.yaml") | |
| args = parser.parse_args() | |
| config = yaml.load(open(args.config, "r"), Loader=yaml.FullLoader) | |
| Prep = Preprocessor(config) | |
| Prep.build_from_path() |