This web page allow you to reproduce part of the original experiment. Note that it uses speech synthesized in 1955.
This page demonstrate an experiment concerned with the perception of vowels. You will hear a voice saying "Please say what this word is:" followed by a test word which is one of the words "bit, bet, bat, but". Your task is to identify the test word. Write it down somewhere on a scrap of paper. You will be asked to make three identifications of this kind.
Identify the test word as one of: