Ying-Hui Lai received the B.S. degrees in department of industrial education from National Taiwan Normal University in 2005, and the Ph.D. degree in department of biomedical engineering from National Yang-Ming University in 2013. From January 2010 to June 2012, Dr. Lai was as a research and development (R&D) engineering in Aescu technology, Taipei, Taiwan, where he engaged in research and product development in hearing aids. Currently, Dr. Lai is a postdoctoral fellow of the research center for information technology innovation at Academia Sinica. His research focuses on hearing aids, cochlear implant, speech enhancement and pattern recognition.