Scaled Vowels

Here is a figure which shows how we scale vowels to have the vocal tract lengths and voice pitches of differently sized people (from huge men bottom left, to women in the middle, to tiny children top right). All these different sized people have been made from the vowels of one person.

The scaled vowel sounds include information about both the source size (how big is the speaker) and the shape of the vocal tract (what vowel is being said). We believe that the auditory system includes some form of scale transform that automatically segregates size and shape information in the sound. Our current research suggests that size is a dimension of auditory perception as well as a dimension of sound itself.

 
Back to the Sounds page