Fig. 2

Relative AUC improvement of the proposed methods over the competitive methods, when STFT is used as the acoustic feature. a Feedforward neural network is used as the basic deep model; the evaluation is conducted on the English Noisy-CHiME-4 dataset. b Feedforward neural network is used; the evaluation is conducted on the Chinese Noisy-THCHS-30 dataset. c BLSTM is used; the evaluation is conducted on the English Noisy-CHiME-4 dataset. d BLSTM is used; the evaluation is conducted on the Chinese Noisy-THCHS-30 dataset