LibriVoxDeEn: A Corpus for German-to-English Speech Translation and German Speech Recognition
Table 6: Example entry in LibriVoxDeEn, listing name of book file, name of audio file, hunalign score, German sentence, aligned English sentence, number of words in German sentence, number of words in English sentence.
['book', 'audio', 'score', 'de_sentence', 'en_sentence', '#w_de', '#w_en']
We presented a corpus of aligned triples of German audio, German text, and English translations for speech translation from German to English. The audio data in our corpus are read speech, based on German audio books, ensuring a low amount of speech disfluencies. The audio-text alignment and text-to-text sentence alignment was checked to be of high quality in a manual evaluation. A cutoff on a sentence alignment quality score allows to filter the text alignments further, resulting in a clean corpus of 50,427 German-English sentence pairs aligned to 110 hours of German speech. A larger version of the corpus, comprising 547 hours of German speech and high-quality alignments to German transcriptions is available for speech recognition.