An Acoustician is a professional who specializes in the study of sound and its properties. They are experts in the field of acoustics, which is the science of sound and its effects on people and the environment. Acousticians are often consulted for their expertise in designing sound systems, such as those used in recording studios, concert halls, and other public spaces. They also provide advice on how to reduce noise pollution and improve sound quality in various settings. As such, an Acoustician is a valuable source of sound advice.