decibels adjusted

См. также в других словарях:

• взвешенная мощность шума, выраженная в децибелах — Единица измерения уровня мощности шума, определяемая как отношение уровня шума к контрольному уровню 3,16 пВт ( 85 дБм). В этой точке значение взвешенной мощности шума равно С dBa. [Л.М. Невдяев. Телекоммуникационные технологии. Англо русский… …   Справочник технического переводчика

• dBa — decibels above reference noise, adjusted. Also, dba. * * * …   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

• sound-level meter — ▪ instrument       device for measuring the intensity of noise, music, and other sounds. A typical meter consists of a microphone for picking up the sound and converting it into an electrical signal, followed by electronic circuitry for operating …   Universalium

• Electronic 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… …   Wikipedia

• phon — /fon/, n. a unit for measuring the apparent loudness of a sound, equal in number for a given sound to the intensity in decibels of a sound having a frequency of 1000 cycles per second when, in the judgment of a group of listeners, the two sounds… …   Universalium

• motion-picture technology — Introduction       the means for the production and showing of motion pictures. It includes not only the motion picture camera and projector but also such technologies as those involved in recording sound, in editing both picture and sound, in… …   Universalium

• Hearing impairment — See also: Deaf culture for the social movement.. Deaf and/or hard of hearing Classification and external resources The International Symbol for Deafness …   Wikipedia

• Tinnitus — Infobox Disease Name = Tinnitus Caption = DiseasesDB = 27662 ICD10 = ICD10|H|93|1|h|90 ICD9 = ICD9|388.3 ICDO = OMIM = MedlinePlus = 003043 eMedicineSubj = ent eMedicineTopic = 235 MeshID = D014012Tinnitus (pronEng|tɪˈnaɪtəs or IPA|/ˈtɪnɪtəs/,… …   Wikipedia

• telecommunications media — Introduction       equipment and systems metal wire, terrestrial and satellite radio, and optical fibre employed in the transmission of electromagnetic signals. Transmission media and the problem of signal degradation       Every… …   Universalium

• The Dark Knight (film) — The Dark Knight Theatrical release poster …   Wikipedia