[1]the Key Laboratory of Speech Acoustics and Content Understanding Institute of Acoustics Chinese Academy of Sciences Beijing 100190 China;
[2]the School of Electronic Electrical and Communication Engineering University of Chinese Academy of Sciences Beijing 101408 China;
[3]with Xinjiang Laboratory of Minority Speech and Language Information Processing Xinjiang Technical Institute of Physics and Chemistry Chinese Academy of Sciences Urumqi 830011 China;
Bottleneck feature (BNF); cross-lingual automatic speech recognition (ASR); progressive neural networks (Prognets) model; transfer learning;