At first acoustics attributed to the different sounds only a limited number of characteristic features.

When I speak it is in order to be heard.

A new era in the physiological investigation of linguistic sounds was opened up by X-ray photography.

Now the identification of individual sounds by phonetic observation is an artificial way of proceeding.

The poetic function is the set towards the message itself, focus on the message for its own sake which by promoting the palpability of signs, deepens the fundamental dichotomy of signs and objects.

What's next? Shall we appoint elephants to teach zoology?

Acoustic phonetics, which is developing and increasing in richness very rapidly, already enables us to solve many of the mysteries of sound, mysteries which motor phonetics could not even begin to solve.