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In the first pathway, vibrations of the transducer produce airborne sounds, some of which reach the ear canal and are transmitted to the cochlea via the conventional pathway for AC.
In the places where airborne sound waves were recorded, the research was repeated for 3 times (the duration of one measurement is 30 s).
The values of single parameter indicators of airborne sound insulation for wall construction from silicate bricks and blocks Konstrukcija Eksperimento rezultatai [D.
The association proposed that minimum airborne sound insulation for walls, floors and ceilings should be increased, from a weighted sound reduction value of 45, to 50 decibels.
The adjacent walls were covered with SONEXvalueline Panels, which absorb airborne sound energy to reduce reflections and reverberation.
Attenuation of airborne sound between test rooms within the Department of Psychology, Edinburgh University.
Airborne sound control is provided by combining a variety of materials.
This and other phonautograms establish a forgotten French typesetter as the first person to record reproducible airborne sound 17 years before Edison invented the phonograph.
Assignment means that as a consultant for the Maritime Administration on behalf perform the necessary visions of buildings and chattels, vibration measurement, noise measurement of airborne sound and structure-borne noise, and trade-offs of land and buildings associated with the construction of the target project in accordance with applicable codes and standards.
Available in sizes up to 9ft, the wood doors and aluminum frames, along with PEMKO seal kit, have been acoustically tested together, to achieve an STC (Sound Transmission Class) rating of 35 per ASTM E90 (Standard Test Method for Laboratory Measurement of Airborne Sound Transmission Loss of Building Partitions and Elements) and ASTM E413 (Classification for Rating Sound Insulation).

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