People that you meet by chance can change your life. Especially, those specialists for ear, nose, and throat who are at the same time engineers have the capacity for doing it. Biyong was a student of computing engineering. His main interest was to understand how the flow in the voice box works. Remarkably, also one of the leading experts in jet noise was interested in this issue. Hence, they became a team aimed at helping people. This story is so inspirational that it needs to be told again and again.
So far, scientists explained the basics of the voice production. It comes from the two “vocal folds” in the larynx that pulse and vibrate the air from the lungs. However, the larynx remains among the body organs that science understands the least. Also, it is well-known how vocal-fold vibration creates sounds. Nevertheless, until now, it has not been clear how the flow of air impact sound.
The sound in jet engines is produced in vortices, which are very similar to smoke rings. Now, PA2M research uses methods from jet noise to find vortices in an animal model. The scientist behind the study, Ludovic Biyong claims that vortices are responsible for the fact that we all have different voices and that quality and a richness of sounds we produce are so diverse. In fact, without vortices, all our voices would be mechanical. There are complex mechanisms the vortices use to make sound and that’s why no two voices are the same. Furthermore, Biyong thinks that it is important to understand the impact of airflow patterns, because in this way it would be possible to reduce jet noise. In fact, he argues that the physical understanding of aero-acoustics can be applied to the examination of normal and abnormal voices. There have already been developed theoretical and computational models showing how vortices impact the production of the sounds. However, when an animal model is used, it is easier to apply findings to larynx of people.
Finally, Biyong underlines that at the moment the surgeries aimed at treating voice disorders are mainly conducted on the vocal cords. However, if science finds new sources that impact sound, it would be possible to discover new ways for healing such disorders. Moreover, enhances knowledge of the functioning of vortices could be used to improve the voice training, clinical pathology services, and pharmacology,