00872nam2 22002533i 450 LO1038429120231121125519.020180718d1962 ||||0itac50 bafrefrz01i xxxe z01n˜1: œDe Messiaen à BoulezAntoine Goléa[S.l.]Seghers[1962]220 p., [4] c. di tav.17 cm.001LO103842902001 Vingt ans de musique contemporaineAntoine Goléa1ITIT-0120180718IT-FR0017 Biblioteca umanistica Giorgio ApreaFR0017 NLO10384291Biblioteca umanistica Giorgio Aprea 52MAG 15/291.1 52SBA0000244915 VMN RS A 2018071820180718 52De Messiaen à Boulez3608233UNICAS01989nam 2200373 450 991013548520332120231208090737.00-7381-7263-4(CKB)3780000000092917(NjHacI)993780000000092917(EXLCZ)99378000000009291720231208d2012 uy 0engur|||||||||||txtrdacontentcrdamediacrrdacarrierIEEE Std 269a-2012 (Amendment to IEEE Std 269-2010) /Institute of Electrical and Electronics Engineers[Place of publication not identified] :IEEE,2012.1 online resource (ix, 21 pages)Abstract: Practical methods for making laboratory measurements of electroacoustic characteristics of analog and digital telephones, handsets, and headsets are presented. The methods may also be applicable to a wide variety of other communications equipment, including cordless, wireless, and mobile communications devices. Measurement results may be used to evaluate these devices on a standardized basis. Application is in the frequency range from 100 Hz to 8500 Hz. Keywords: analog telephones, digital telephones, electroacoustic measurements on telephones, handsets, headsets, IEEE 269, IEEE 269a, telephony, voice transmission performance.IEEE Std 269a-2012 (Amendment to IEEE Std 269-2010): IEEE Standard Methods for Measuring Transmission Performance of Analog and Digital Telephone Sets, Handsets, and Headsets--Amendment 1IEEE Std 269a-2012 TelephoneEquipment and suppliesTelephoneEcho suppressorsTelephoneEquipment and supplies.TelephoneEcho suppressors.621.386 NjHacINjHaclDOCUMENT9910135485203321IEEE Std 269a-2012 (Amendment to IEEE Std 269-2010)2578745UNINA