disclosed are methods , devices , apparatus , assemblies and systems for generating and directing acoustic energy . according to some embodiments , there may be provided a cyclical acoustic apparatus or generator comprising a cyclical combustions chamber adapted to cyclically generate acoustic energy . there may be provided an acoustic energy collection and guiding assembly adapted to channel sounds energy generated by said cyclical combustion chamber to an aiming and release apparatus , which aiming and release apparatus directs the acoustic energy towards a target zone .