This open access book tackles the design of 3D spatial interactions in an audiocentered and audiofirst perspective providing the fundamental notions related to the creation and evaluation of immersive sonic experiences. The key elements that enhance the sensation of place in a virtual environment VE areImmersive audio the computational aspects of the acousticalspace properties of Virutal Reality VR technologies Sonic interaction the humancomputer interplay through auditory feedback in VEVR systems naturally support multimodal integration impacting different application domainsSonic Interactions in Virtual Environments will feature stateoftheart research on realtime auralization sonic interaction design in VR quality of the experience in multimodal scenarios and applications. Contributors and editors include interdisciplinary experts from the fields of computer science engineering acoustics psychology design humanities and beyond. Their mission is to shape an emerging new field of study at the intersection of sonic interaction design and immersive media embracing an archipelago of existing research spread in different audio communities and to increase among the VR communities researchers and practitioners the awareness of the importance of sonic elements when designing immersive environments.ampnbsp