Experiments have been performed which explore the perception of formant transitions from two concurrent syllables. The approximants /w/ and /j/ were combined with the vowels /i/ and/a/ to form syllables. These were played simultaneously to listeners for identification. It was found that the consonants could be identified part of the time if the syllables differed in pitch and contained different vowels. Further experiments have explored the effects of pitch difference and formant transition delay.