Double Vowels

One of the most intensively used paradigm for studying simultaneous sound segregation is the identification of double vowels. The most important result discussed in Chapter 6 of the book is the finding that the introduction of a difference in the pitch of the two vowels improves their identification.

Here is a demonstration of double vowels. The vowels illustrated here are the japanese vowels used by de Cheveigné and colleagues in a series of studies discussed in the book. The software used to generate these vowels was supplied by Alain de Cheveigné.