The Second International Conference on Acoustics and Vibration (ICAV’2018) was held at Hammamet, Tunisia, from 19 to 21 March 2018. ICAV’2018 aims to collect the broadest range of high-level contributions, covering theoretical and practical case studies in all the fields of acoustics and vibration. After a successful first edition in 2016 published under ACM book series, the Tunisian Association of Industrial Acoustics and Vibration which is the organizer of this conference continues to promote communication and collaboration between international and local communities involved in the fields of acoustics and vibration. The book contains 33 chapters issued from the presentation done by eminent scientists which were rigourously peer reviewed.