This paper addresses the integration of sound into product design and engineering. Recognizing a gap in design education, the study focuses on introducing product design and engineering students to the principles of product sound design (PSD). By means of interviews with experts and literature research, a three-level framework is developed, addressing product features, object composition, and environmental context. This framework can assist students in understanding how engineering decisions influence sound perception at the product level, how material and structural choices affect sound at the object level, and how environmental factors shape the overall auditory experience. The framework served as the foundation for conceptualizing Les Sons, an educational software tool that mirrors these levels in its architecture. Les Sons supports students in exploring and modifying product acoustics through component and material selection. The paper stresses the role of tools like Les Sons for product sound design education, in order to practice and enhance collaboration and shared understanding in multidisciplinary contexts.