standard pure tone

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• Pure tone audiometry — (PTA) is the key hearing test used to identify hearing threshold levels of an individual, enabling determination of the degree, type and configuration of a hearing loss. Thus, providing the basis for diagnosis and management. PTA is a subjective …   Wikipedia

• Pure Food and Drug Act (band) — Pure Food and Drug Act was a band that was formed in the early 1970s based on the talent and charisma of Don Sugarcane Harris. The band began with Paul Lagos (sideman with Johnny Otis, John Mayall ) on drums, Larry Taylor (original member Canned… …   Wikipedia

• Dual-tone multi-frequency signaling — One of the few production telephone DTMF keypads with all 16 keys, from an Autovon Telephone. The column of red keys produces the A, B, C, and D DTMF events. Dual tone multi frequency signaling (DTMF) is used for telecommunication signaling over… …   Wikipedia

• Reference tone — A reference tone is a pure tone corresponding to a known frequency, and produced at a stable sound pressure level (volume), usually by specialized equipment.In mediaThe most common reference tone in audio engineering is a Audio|1000Hz.ogg|1000 Hz …   Wikipedia

• List of Pure Pwnage episodes — There are currently eighteen episodes of Pure Pwnage. All the episodes are available for download in DivX encoded AVI format and now also in Mac/iPod and PSP MP4 format from [http://www.purepwnage.com/episodes.html the Pure Pwnage website] , HTTP …   Wikipedia

• Equal-loudness contour — An equal loudness contour is a measure of sound pressure (dB SPL), over the frequency spectrum, for which a listener perceives a constant loudness when presented with pure steady tones. The unit of measurement for loudness levels is the phon, and …   Wikipedia

• sound — sound1 soundable, adj. /sownd/, n. 1. the sensation produced by stimulation of the organs of hearing by vibrations transmitted through the air or other medium. 2. mechanical vibrations transmitted through an elastic medium, traveling in air at a… …   Universalium

• Sound — /sownd/, n. The, a strait between SW Sweden and Zealand, connecting the Kattegat and the Baltic. 87 mi. (140 km) long; 3 30 mi. (5 48 km) wide. Swedish and Danish, Oresund. * * * I Mechanical disturbance that propagates as a longitudinal wave… …   Universalium

• ear, human — ▪ anatomy Introduction       organ of hearing and equilibrium that detects and analyzes noises by transduction (or the conversion of sound waves into electrochemical impulses) and maintains the sense of balance (equilibrium).  The human ear, like …   Universalium

• musical sound — Introduction       any tone with characteristics such as controlled pitch and timbre. The sounds are produced by instruments in which the periodic vibrations can be controlled by the performer.       That some sounds are intrinsically musical,… …   Universalium

• A-weighting — A graph of the A , B , C and D weightings across the frequency range 10 Hz – 20 kHz Video illustrating A weighting by analyzing a sine sweep (contains audio) A weighting is the most …   Wikipedia