1、 SMPTE 4 95 8357403 0003799 I75 SMPTE STANDARD for Television Analog Recording - 2-in Magnetic Tape for Quadruplex Recording - Speed ANSI/SMPTE 4-1 995 Revision of ANSI/SMPTE 4-1989 1 Scope This standard specifies the nominal rates of travel of 2-in wide magnetic tape for quadruplex video magnetic t
2、ape recording. 2 Normative reference The following standard contains provisions which, through reference in this text, constitute provisions of this standard. At the time of publication, the edition indicated was valid. All standards are subject to revision, and parties to agreements based on this s
3、tandard are encouraged to investigate the possibility of applying the most recent edition of the standard indicated below. ANSI/SMPTE 6-1993, Video Recording - 2-in Quadruplex Tape - Video, Audio and Tracking- Control Records 3 Primary nominal rate of tape travel The primary nominal rate of tape tra
4、vel shall be 15 in/s (38.1 cmls). 4 Secondary nominal rate of tape travel The secondary nominal rate of tape travel shall be 7.5 in/s (19.05 cm/s). NOTE - The absolute tape speed is outlined in ANSI/SMPTE 6. CAUTION NOTICE. This Standard may be revised or withdrawn at any time The procedures of the
5、Standard Developer require that action be taken to reaffirm, revise, or withdraw this standard no later than five years from the date of publication Purchasers of standards may recewe current information on all standards by calling or writing the Standard Developer. Printed in USA. Copyright O 1995 by THE SOCIETY OF L American National Standard MOTION PICTURE AND TELEVISION ENGINEERS 595 W Hartsdale Ave., White Plains. NY 10607 (914) 761-1100 January Approved 3,1995
