- August, 2018 I AAlborg University, Denmark, Visiting Professor
- Mar., 2018 I Institute of Information Technology and Electronics, Liberec, the Czech Republic. Funded by Erasmus+
- Sep.-Oct., 2014 I Signal Processing Research Department, Starkey Hearing Technology, Visiting professor
- Mar.-May, 2014 I International Audio labs, Fraunhofer IIS and Friedrich-Alexander University, Erlangen-Nuremberg, Germany, Visiting professor
- Since 2013 (multiple visits) I INRIA Grenoble, Rhône-Alps, France
- Jul.-Aug., 2013 I Nanyang Technological University, Singapore, Tan Chin Tuan visiting professor
- Apr., 2013 I Institute of Information Technology and Electronics, Liberec, the Czech Republic. Funded by Project ESF CZ.1.07/2.2.00/28.0050
- Jan. 2013 I TU Berlin, Germany
- Sep., 2012 I International Audio labs, Fraunhofer IIS and Friedrich-Alexander University, Erlangen-Nuremberg, Germany
- Sep., 2009 I Imperial College, London, UK
