*Acoustics: Is the interdisciplinary science that deals with the study of all mechanical waves in gases, liquids, and solids including vibration, sound, ultrasound and infrasound.
*Infrasound:is a sound wave or sound wave whose frequency is below theaudible range of human hearing.
*Architectural Acoustics: Studies the phenomena associated with a right-propagation, true sound and functional in a closet, either a concert hall or recording studio. Thisalso involves the problem of sound insulation.
*Sound insulation:refers to the set of materials, techniques and technologies developed to isolate or reduce the noise level in a given space
*Infrasound: is a sound wave or sound wave whose frequency is below theaudible range of human hearing.
*Architectural Acoustics: Studies the phenomena associated with a right-propagation, true sound and functional in a closet, either a concert hall or recording studio. Thisalso involves the problem of sound insulation.
*Sound insulation: refers to the set of materials, techniques and technologies developed to isolate or reduce the noise level in a given space