Some time ago, I was on Radio New Zealand discussing my research on the use of air flow to enhance speech perception. Alas, it did not have the commercial value we thought it would have due to the need for higher airflow than is feasible necessary to enhance speech perception in continuous speech. However, it since led to the development of a mask-less and plate-less air flow estimation system that works well. The system provides useful biofeedback information that has the potential to help with speech therapy and accent modification.