acoustical+transmission

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• 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 (see ASTM International… …   Wikipedia

• Speech transmission index — Speech Transmission Index, short STI is a measure of speech transmission quality. The absolute measurement of speech intelligibility is a complex science. The STI measures some physical characteristics of a transmission channel (a room, electro… …   Wikipedia

• Speech Transmission Index — Speech Transmission Index, short STI is a measure of intelligibility of speech. The understanding of speech, the intelligibility is directly dependent of the background noise level, of the reverberation time, and of the size of the room. For the… …   Wikipedia

• Speech Transmission Index — Le Speech Transmission Index (STI) est une mesure de l intelligibilité de la parole. Sommaire 1 Echelle 2 Voir aussi 3 Références 4 Liens externes …   Wikipédia en Français

• Acoustiblok — Acoustiblok, a registered trademark of Acoustiblok Inc., is a mass loaded construction membrane material which increases the sound attenuation properties of conventional wall and floor/ceiling designs. Acoustiblok material is also used as a… …   Wikipedia

• Architectural acoustics — is the science of noise control within buildings. The first application of architectural acoustics was in the design of opera houses and then concert halls. More widely, noise suppression is critical in the design of multi unit dwellings and… …   Wikipedia

• Noise regulation — includes statutes or guidelines relating to sound transmission established by national, state or provincial and municipal levels of government. After the watershed passage of the United States Noise Control Act of 1972,[1] other local and state… …   Wikipedia

• History of radar — The history of radar starts with experiments by Heinrich Hertz in the late 19th century that showed that radio waves were reflected by metallic objects. This possibility was suggested in James Clerk Maxwell s seminal work on electromagnetism.… …   Wikipedia

• Noise mitigation — is a set of strategies to reduce noise pollution. The main areas of noise mitigation or abatement are: transportation noise control, architectural design, and occupational noise control. Roadway noise and aircraft noise are the most pervasive… …   Wikipedia

• Articulatory synthesis — refers to computational techniques for synthesizing speech based on models of the human vocal tract and the articulation processes occurring there. The shape of the vocal tract can be controlled in a number of ways which usually involves… …   Wikipedia

• Sperm whale — Sperm Whale[1] Size compared to an average human …   Wikipedia