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import re |
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import os |
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from collections import defaultdict |
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OUT_DIR = '.' |
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PHONEMES = ['[a]','[ai]','[au]','[c]','[ç]','[cʰ]','[ð]','[ei]','[ɛ]','[f]','[ɣ]','[i]',\ |
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'[ɪi]','[j]','[n]','[n̥]','[ɲ]','[ŋ]','[œi]','[oi]','[ou]','[ɔ]','[pʰ]','[r]',\ |
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'[r̥]','[s]','[u]','[ui]','[uɪ]','[v]','[x]','[ʏi]','[θ]','[p]','[l]', '[m̥]', \ |
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'[l̥]', '[œ]', '[œy]', '[ʏ]', '[g]', '[z]', '[tʰ]', '[ɪ]','[h]', '[ə]', '[y]',\ |
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'[e]', '[kʰ]', '[k]', '[m]', '[ʀ]','[æ]', '[a:]', '[i:]', '[u:]', '[t]'] |
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def open_lecture_file(file_path:str) -> list: |
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''' |
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Returns the content of the LECTUREs.tsv file as a list of lists |
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with the first line omitted. |
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''' |
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assert os.path.exists(file_path), 'expected the file LECTURES.tsv to exsist' |
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return [line.rstrip().split('\t') for line in open(file_path)][1:] |
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def init_folders(dir:str) -> None: |
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''' |
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Creates the output folders |
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''' |
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for s in ['train', 'dev','eval']: |
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if not os.path.exists(os.path.join(dir, s)): |
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os.makedirs(os.path.join(dir, s), exist_ok=True) |
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def convert_milli_to_secs(ms:str) -> str: |
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''' |
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Convers milliseonds to seconds |
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e.g. |
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47683 -> 47.68 |
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''' |
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return str(round(float(ms)/1000.0, 2)) |
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def remove_puncuation(s:str, c) -> str: |
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''' |
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An example of how to prepare the text for use in ASR training |
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''' |
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for p in PHONEMES: |
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if p in s: |
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s = s.replace(p, '<unk>') |
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s = s.lower() |
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s = re.sub('\[hik:{0,1}\s{0,1}(.+?)\]', r"\1", s) |
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s = re.sub('\[unk:\s(.+?)\]', r"\1", s) |
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s = re.sub('[-/]', ' ', s) |
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s = re.sub('[,„“;":\.\'\?\!]','', s) |
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s = re.sub('\[unk\]', '<unk>', s) |
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s = re.sub('[\[\]]', '', s) |
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s = re.sub('µ', 'mu', s) |
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s = re.sub('ü', 'ú', s) |
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return s |
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def create_spk2utt(out_dir, utt2spk:str) -> None: |
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''' |
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Reads the utt2spk file and creates spk2utt |
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''' |
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content = {} |
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for line in utt2spk: |
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line = line.split(' ') |
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if line[1] not in content: |
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content[line[1]] = [line[0]] |
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else: |
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content[line[1]].append(line[0]) |
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with open(out_dir, 'w') as f_out: |
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for spkd_id, segments in sorted(content.items()): |
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f_out.write(spkd_id) |
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for segment in sorted(segments): |
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f_out.write(' ' + segment) |
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f_out.write('\n') |
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def write_to_file(filename, the_list): |
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''' |
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Takes in a file name and list of strings and writes out |
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''' |
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with open(filename, 'w') as f_out: |
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for line in the_list: |
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f_out.write(line+'\n') |
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def prep_data() -> None: |
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info = open_lecture_file('LECTURES.tsv') |
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data = defaultdict(lambda: defaultdict(list)) |
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for line in info: |
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text_file_path = os.path.join(line[1], line[0]+'.txt') |
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assert text_file_path, f'expected {text_file_path} to exsist' |
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file_content = [line.rstrip().split('\t') for line in open(text_file_path, encoding='UTF-8')][1:] |
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recording_id = f"{line[0]}" |
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for segment in file_content: |
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segment_id = f"{line[1]}_{segment[0]}" |
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''' |
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Create utt2spk |
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segment id - speaker id |
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e.g. |
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c7a5ce8b-a2ff-4c08-8668-0687fc0f6e97_00013 00003 |
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c7a5ce8b-a2ff-4c08-8668-0687fc0f6e97_00014 00003 |
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... |
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''' |
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data[segment[3]]['utt2spk'].append(f"{segment_id} {line[1]}") |
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''' |
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Create text |
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segment id - text |
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e.g. |
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c7a5ce8b-a2ff-4c08-8668-0687fc0f6e97_00013 góðan dag |
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c7a5ce8b-a2ff-4c08-8668-0687fc0f6e97_00014 Í þessum fyrirlestri er fjallað um lágmarkspör, |
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... |
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''' |
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data[segment[3]]['text'].append(f"{segment_id} {remove_puncuation(segment[4], segment)}") |
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''' |
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Create segments |
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segment id - recording id - start time [sek] - end time [sek] |
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e.g. |
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c7a5ce8b-a2ff-4c08-8668-0687fc0f6e97_00013 c7a5ce8b-a2ff-4c08-8668-0687fc0f6e97 20.99 23.34 |
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c7a5ce8b-a2ff-4c08-8668-0687fc0f6e97_00014 c7a5ce8b-a2ff-4c08-8668-0687fc0f6e97 24.03 36.88 |
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... |
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''' |
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data[segment[3]]['segments'].append(f"{segment_id} {recording_id} {convert_milli_to_secs(segment[1])} {convert_milli_to_secs(segment[2])}") |
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''' |
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Create wavscp |
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segment_id - sox coversion - full path to audio file |
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9daf46dc-3ae1-4faa-8546-dbca49f48a22_00070 sox - -c1 -esigned -r 16000 -twav - < ~/kennsluromur-ltp-lectures-new/dev/9daf46dc-3ae1-4faa-8546-dbca49f48a22.wav | |
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9daf46dc-3ae1-4faa-8546-dbca49f48a22_00076 sox - -c1 -esigned -r 16000 -twav - < ~/kennsluromur-ltp-lectures-new/dev/9daf46dc-3ae1-4faa-8546-dbca49f48a22.wav | |
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''' |
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data[segment[3]]['wav.scp'].append(f"{recording_id} sox - -c1 -esigned -r 16000 -twav - < {os.path.join(os.getcwd(), line[1], recording_id+'.wav')} |") |
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init_folders(OUT_DIR) |
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for the_set in data.keys(): |
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data[the_set]['wav.scp'] = list(set(data[the_set]['wav.scp'])) |
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for file in data[the_set].keys(): |
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sorted_list = sorted(data[the_set][file]) |
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data[the_set][file] = sorted_list |
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write_to_file(os.path.join(OUT_DIR, the_set, file), sorted_list) |
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create_spk2utt(os.path.join(OUT_DIR, the_set, 'spk2utt'), data[the_set]['utt2spk']) |
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if __name__ == '__main__': |
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prep_data() |
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