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When receiving the noise signal, the amplifier and subwoofers responded with sound pressures ranging from 100 dB to 120 dB. The resulting rumble could be felt by audience members as well as heard. [1] For the film Earthquake, Sensurround was activated during the quake scenes to augment the conventional soundtrack. [5]
From about 1900 to the 1950s, the "lowest frequency in practical use" in recordings, broadcasting and music playback was 100 Hz. [9] When sound was developed for motion pictures, the basic RCA sound system was a single 8-inch (20 cm) speaker mounted in straight horn, an approach which was deemed unsatisfactory by Hollywood decisionmakers, who hired Western Electric engineers to develop a ...
Early speaker from Vega Labs. Cerwin-Vega was founded as Vega Associates [4] (with later name changes to Vega Laboratories and then Cerwin-Vega) by aerospace engineer Eugene J. "Gene" Czerwinski (1927–2010) in 1954, [4] and became noted for producing an 18" speaker capable of producing 130 dB in SPL at 30 Hz, an astonishing level during its time.
The earthquake had a magnitude of 6.5 M w with an unknown depth. [5] There have been an estimated 10 attempts to locate the earthquake. Contributing to this problem was the reduction of operating seismic stations within Humboldt County, with a total of two seismic stations.
The magnitude 4.4 earthquake that rattled Los Angeles on Monday was centered within one of the region's most potentially destructive fault systems, one capable of producing a magnitude 7.5 ...
John Williams' music for Earthquake was the second of his trio of scores for large-scale disaster films, having previously scored The Poseidon Adventure and following with The Towering Inferno. [12] Williams scored Earthquake and The Towering Inferno during the summer of 1974, with both scores showing similarities to one another (notably ...
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