Acoustic source is a research area that focuses on understanding and characterizing the generation of sound waves in various environments. This includes studying the physical properties of sound sources, such as their size, shape, and material composition, as well as the mechanisms by which they produce sound waves. Researchers in this field may investigate a wide range of acoustic sources, from natural sources like animals and geological events to man-made sources like machinery and musical instruments. Understanding acoustic sources is important for applications such as noise control, ultrasonic imaging, and communication systems.