The McGurk effect shows how hearing and vision are used for speech perception. Named after the man who found it, Harry McGurk (23 February 1936 – 17 April 1998), it says that people hear speech with their ears, and use other senses to help interpret what they hear. The McGurk effect happens when watching a video of a person saying /ga/ with a sound-recording saying /ba/. When this is done, a third sound is heard: /da/.
ð ə WORD_BOUNDARY m ə WORD_BOUNDARY ɡ ɜː k WORD_BOUNDARY ɪ f ɛ k t WORD_BOUNDARY ʃ oʊ z WORD_BOUNDARY h aʊ WORD_BOUNDARY h ɪ ɹ ɪ ŋ WORD_BOUNDARY æ n d WORD_BOUNDARY v ɪ ʒ ə n WORD_BOUNDARY ɑ ɹ WORD_BOUNDARY j uː z d WORD_BOUNDARY f ɔ ɹ WORD_BOUNDARY s p iː t̠ʃ WORD_BOUNDARY p ə ɹ s ɛ p ʃ ə n WORD_BOUNDARY n eɪ m d WORD_BOUNDARY æ f t ə ɹ WORD_BOUNDARY ð ə WORD_BOUNDARY m æ n WORD_BOUNDARY h uː WORD_BOUNDARY f aʊ n d WORD_BOUNDARY ɪ t WORD_BOUNDARY h æ ɹ i WORD_BOUNDARY m ə WORD_BOUNDARY ɡ ɜː k WORD_BOUNDARY t w ɛ n t i WORD_BOUNDARY θ ɹ iː WORD_BOUNDARY f ɛ b ɹ uː ɛ ɹ i WORD_BOUNDARY n aɪ n t iː n h ʌ n d ɹ ɪ d WORD_BOUNDARY θ ɜː t i WORD_BOUNDARY s ɪ k s WORD_BOUNDARY s ɛ v ə n t iː n WORD_BOUNDARY eɪ p ɹ ə l WORD_BOUNDARY n aɪ n t iː n h ʌ n d ɹ ɪ d WORD_BOUNDARY n aɪ n t i WORD_BOUNDARY eɪ t WORD_BOUNDARY ɪ t WORD_BOUNDARY s ɛ z WORD_BOUNDARY ð æ t WORD_BOUNDARY p iː p ə l WORD_BOUNDARY h ɪ ɹ WORD_BOUNDARY s p iː t̠ʃ WORD_BOUNDARY w ɪ ð WORD_BOUNDARY ð ɛ ɹ WORD_BOUNDARY ɪ ɹ z WORD_BOUNDARY æ n d WORD_BOUNDARY j uː s WORD_BOUNDARY ʌ ð ə ɹ WORD_BOUNDARY s ɛ n s ɪ z WORD_BOUNDARY t ə WORD_BOUNDARY h ɛ l p WORD_BOUNDARY ɪ n t ɜː p ɹ ɪ t WORD_BOUNDARY w ʌ t WORD_BOUNDARY ð eɪ WORD_BOUNDARY h ɪ ɹ WORD_BOUNDARY ð ə WORD_BOUNDARY m ə WORD_BOUNDARY ɡ ɜː k WORD_BOUNDARY ɪ f ɛ k t WORD_BOUNDARY h æ p ə n z WORD_BOUNDARY w ɛ n WORD_BOUNDARY w ɑ t̠ʃ ɪ ŋ WORD_BOUNDARY ʌ WORD_BOUNDARY v ɪ d ɪ oʊ WORD_BOUNDARY ə v ə WORD_BOUNDARY p ɜː s ə n WORD_BOUNDARY s eɪ ɪ ŋ WORD_BOUNDARY s l æ ʃ WORD_BOUNDARY ɡ ɑ WORD_BOUNDARY s l æ ʃ WORD_BOUNDARY w ɪ ð WORD_BOUNDARY ʌ WORD_BOUNDARY s aʊ n d ɹ ɪ k ɔ ɹ d ɪ ŋ WORD_BOUNDARY s eɪ ɪ ŋ WORD_BOUNDARY s l æ ʃ WORD_BOUNDARY b ɑ WORD_BOUNDARY s l æ ʃ WORD_BOUNDARY w ɛ n WORD_BOUNDARY ð ɪ s WORD_BOUNDARY ɪ z WORD_BOUNDARY d ʌ n WORD_BOUNDARY ʌ WORD_BOUNDARY θ ɜː d WORD_BOUNDARY s aʊ n d WORD_BOUNDARY ɪ z WORD_BOUNDARY h ɜː d WORD_BOUNDARY s l æ ʃ WORD_BOUNDARY d ɑ WORD_BOUNDARY s l æ ʃ WORD_BOUNDARY