Our research replicates and extends previous work on infant audio-visual speech perception, demonstrating that two-month-old infants have knowledge of the audio-visual connection between the visual aspects of lip-posture and the pronunciation of vowels and glides. Using the intermodal preferential looking paradigm [6] the infants display a clear ability to distinguish /a/-/u/, /i/-/u/ and /i/-/wi/. The infantsÂ’ ability to discriminate /i/-/wi/ shows that even dynamic aspects of speech production within single syllables are salient to the infants.