1. Audacity. Version 1.2.6. Latest version downloadable from 〈http://audacity.sourceforge.net〉.
2. Modern cantonese phonology;Bauer,1997
3. A direct realist view of cross-language speech perception;Best,1995
4. Cross-language perception of non-native vowels: Phonological and phonetic effects of listeners' native languages;Best,2003
5. Nonnative and second-language speech perception: Commonalities and complementarities;Best,2007