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[null,"1.","Record Nr.",null,"UNINA9910136267603321"]
[null,null,"Titolo",null,"IEEE Std 347-1972 (ANSI S4.6-1973) : IEEE standard method of measuring recorded flux of magnetic sound records at medium wavelengths / / Institute of Electrical and Electronics Engineers"]
[null,null,"Pubbl/distr/stampa",null,"Piscataway, New Jersey : , : IEEE, , 1972"]
[null,null,"ISBN",null,"1-5044-0312-6"]
[null,null,"Descrizione fisica",null,"1 online resource (8 pages)"]
[null,null,"Disciplina",null,"621.38932"]
[null,null,"Soggetti",null,"Magnetic recorders and recording"]
[{"$nulls":4},"Magnetic tapes"]
[{"$nulls":4},"Sound - Recording and reproducing"]
[null,null,"Lingua di pubblicazione",null,"Inglese"]
[null,null,"Formato",null,"Materiale a stampa"]
[null,null,null,"Livello bibliografico","Monografia"]
[null,null,null,"Sommario/riassunto","The knowledge of the recorded signal amplitude on a magnetic record (which may be in the form of a tape, a disc, oτ a perforated film) has several practical uses: (1) for determining and standardizing references for the levels of audio programs on these magnetic records; (2) for specifying the recording-performance properties of magnetic media (for example, the distortion versus flux, etc); and (3) for measuring and specifying the sensitivity of reproducing heads (and also, by reciprocity, recording heads). The quantity for specifying the recorded signal is the short-circuit magnetic flux, sometimes simply shortened to flux. Several possible methods exist for measuring tape flux, but the measurement given here involves only the use of a calibrated ring-core head which is described in the reference of the standard. Note that the present standard measurement is only for \"medium wavelengths\"."]