Blog
Sounds of Silence – Acoustics 101
Mar
In this podcast, Martin O’Neill will speak to you about enhancing your acoustics in your performance space.
http://www.stmstudiosupplies.com/
U3, 33 Lower Gibbes St, Chatswood, Australia 2067
02 9417 3000
Key links & Definitions:
Glossary
Pitch: the quality of a sound governed by the rate of vibrations producing it; the degree of highness or lowness of a tone.
Hertz: the SI unit of frequency, equal to one cycle per second.
Loudness: In acoustics, loudness is the subjective perception of sound pressure. More formally, it is defined as, “That attribute of auditory sensation in terms of which sounds can be ordered on a scale extending from quiet to loud.”
Amplitude: the maximum extent of a vibration or oscillation, measured from the position of equilibrium.
Decibel: a unit used to measure the intensity of a sound or the power level of an electrical signal by comparing it with a given level on a logarithmic scale.
Reverberation is the collection of reflected sounds from the surfaces in an enclosure like an auditorium. It is a desirable property of auditoriums to the extent that it helps to overcome the inverse square law dropoff of sound intensity in the enclosure.
NRC: The Noise Reduction Coefficient (commonly abbreviated NRC) is a scalar representation of the amount of sound energy absorbed upon striking a particular surface. An NRC of 0 indicates perfect reflection; an NRC of 1 indicates perfect absorption.
STC: Sound Transmission Class (or STC) is an integer rating of how well a building partition attenuates airborne sound. In the USA, it is widely used to rate interior partitions, ceilings/floors, doors, windows and exterior wall configurations
Soundproofing: make (a room or building) resistant to the passage of sound
Curtain Fullness: Curtains can be flat or they can have fullness. Fullness is the extra fabric used across the width or sometimes height of the drape. Fullness provides a drape with a richer look. It increases the visual depth of field and provides more light and sound absorption.
Operable Wall: An operable (movable) wall is a system of individual solid or glazed panels that can moved independently from each other which when fitted together end to end form a continuous flat, faceted or curved wall. Operable wall panels are designed to be easily maneuvered and operated.
