AP20-OLR Challenge: Three Tasks and Their Baselines
Table 1: AP16-OL7 and AP17-OL3 Data Profile
['[BOLD] AP16-OL7 Code', '[BOLD] AP16-OL7 Description', '[BOLD] AP16-OL7 Channel', 'AP16-OL7-train/dev No. of Speakers', 'AP16-OL7-train/dev Utt./Spk.', 'AP16-OL7-train/dev Total Utt.', 'AP16-OL7-test No. of Speakers', 'AP16-OL7-test Utt./Spk.', 'AP16-OL7-test Total Utt.']
For Mandarin, Cantonese, Vietnamese and Indonesia, the recording was conducted in a quiet environment. As for Russian, Korean and Japanese, there are 2 recording sessions for each speaker: the first session was recorded in a quiet environment and the second was recorded in a noisy environment. The sentences of each language in AP17-OL3 are randomly selected from the original M2ASR corpus. The data volume for each language in AP17-OL3 is about 10 hours of speech signals recorded in reading style. The signals were recorded by mobile phones, with a sampling rate of 16 kHz and a sample size of 16 bits. We selected 1800 utterances for each language as the development set (AP17-OL3-dev), and the rest is used as the training set (AP17-OL3-train). The test set of each language involves 1800 utterances, and is provided separately and denoted by AP17-OL3-test. Compared to AP16-OL7, AP17-OL3 contains much more variations in terms of recording conditions and the number of speakers, which may inevitably increase the difficulty of the challenge task.