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Studio Tan '09 at The Biltmore Cabaret. (August 13, 2009)
The Console Swap Extravaganza @ 3424 Commercial St.
Open House : 3424 Commercial St. : March 2008
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The difference in SOUND PRESSURE LEVEL between the saturation or overload level and the BACKGROUND NOISE level of an acoustic or electroacoustic system, measured in DECIBELs. This RANGE may be expressed as a SIGNAL-TO-NOISE RATIO for maximum output.
Any VIBRATION in the air or other medium, some types of which are able to cause a sensation of hearing.
An OSCILLATION produced in an object which resonates at the same FREQUENCY, or a HARMONIC multiple thereof, as that present in a sound wave in contact with the object.
Sound at frequencies above the audible range, namely above 20 kHz, audible only to various non-human species. Because of its very short WAVELENGTH in the megahertz range, ultrasound is used as a safe alternative to X-ray photography in medical diagnosis. Ultrasound scanning is sometimes called sonography.