Previous research suggests L2 vowel perception problems are often due to the assimilation of L2 sounds to L1 categories. However, there is also evidence for a universal strategy which states listeners will rely on duration ...

A group of native Mandarin speaking professors teaching in a U.S. university with a mean length of residence (LOR) in North America of 12 years was rated as highly accented as a group of native Mandarin speaking professors ...