sound pressure level
121Music theory — is the study of how music works. It examines the language and notation of music. It seeks to identify patterns and structures in composers techniques across or within genres, styles, or historical periods. In a grand sense, music theory distills… …
122Pure 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 …
123Electronic amplifier — A practical amplifier circuit An electronic amplifier is a device for increasing the power of a signal. It does this by taking energy from a power supply and controlling the output to match the input signal shape but with a larger amplitude. In… …
124Muzzle brake — The muzzle brake of the 105 mm gun on an AMX 10 RC fighting vehicle …
125Bass instrument amplification — for the bass guitar, double bass and similar instruments is distinct from other types of amplification systems due to the particular challenges associated with low frequency sound reproduction. This distinction affects the design of the… …
126ГОСТ Р МЭК 60942-2009: Калибраторы акустические. Технические требования и требования к испытаниям — Терминология ГОСТ Р МЭК 60942 2009: Калибраторы акустические. Технические требования и требования к испытаниям оригинал документа: 3.1 акустический калибратор (калибратор) (sound calibrator): Устройство, генерирующее синусоидальное звуковое… …
Словарь-справочник терминов нормативно-технической документации
127Weighting filter — A weighting filter is used to emphasise or suppress some aspects of a phenomenon compared to others, for measurement or other purposes. Contents 1 Audio application …
128Phantom power — (labeled as +48 V on some audio equipment) is a method that sends a DC electrical voltage through microphone cables. It is best known as a common power source for condenser microphones, though many active DI boxes also use it. Phantom power… …
