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SMPTE Meetings and Conferences ( February 1982)
[ACTIVE]

A Review of Issues Related to the Choice of Sample Rates for Digital Audio

Metadata

Publisher
SMPTE — White Plains, NY
Doc Type
Conference Paper
Content Type
Original Research
Volume
1982, No. 21, pp. 91–104
Abstract
During 1981 significant progress has been made towards the adoption of 48 kHz as a standard sample rate for digital audio to be used in professional audio equipment as well as in television and motion picture systems. This progress is the result of substantial work done by a number of technical committees sponsored by the SMPTE, the Audio Engineering Society (AES), the European Broadcast Union (EBU), the International Radio Consultative Committee (CCIR), and the International Electrotechnical Commission (IEC). This paper reviews the issues which have been debated in these committees and the background for the choice of 48 kHz among several candidates, some of which have been in use for some time. In the spirit of reaching an agreement on the sample rate, compromises and sacrifices have been made. Of particular concern for the 525/60-color television system is that 8008 audio samples must be distributed, on the average, on 5 frames, i.e. not all frames will contain the same number of samples. It will be shown that this five-frame periodicity will not constrain editing and switching, but that it will require added hardware. The 625/50 television system as well as the 48 frames per second motion picture system will not suffer from this problem, i.e. each frame will contain the same number of samples as the preceding frame. Finally the paper will discuss the implications of the fact that certain consumer products now in existence or about to be marketed may operate with a different sample rate than 48 kHz.
Publication Date
1982-02-01
DOI
10.5594/M00626
Link
https://doi.org/10.5594/M00626
Author(s)
J. J. GibsonRCA Laboratories Princeton, New Jersey
bio
J. James Gibson, VideoDisc Systems Research Laboratory, RCA Laboratories, Princeton, N.J., received the M.S.E.E. from the Royal Institute of Technology, Stockholm, Sweden and the Tekn. Licentiate in Electrical Engineering from Chalmers Institute of Technology, Gothenburg, Sweden. From 1946 to 1952, he did research on antennas, microwave circuits, and radar systems for the Swedish Department of Defense. In 1954, he initiated and led a transistor-circuits research group at the Royal Institute of Technology, Stockholm. In 1956, he joined RCA Laboratories, where he has been engaged in research on radio and television broadcast systems, cable television, consumer electronics, high speed digital circuits, and integrated memories with field effect transistors. His current research activities are primarily related to the RCA VideoDisc system. Mr. Gibson became a Fellow, RCA Laboratories, in 1969. He has published papers on antennas, circuits, and systems, holds seventeen patents, and has received four RCA Laboratories Achievement Awards. He is a Fellow of the IEEE, a Fellow of AES, and a member of SMPTE, AAAS, and Sigma Xi.
Copyright
© 1982 Society of Motion Picture and Television Engineers, Inc.

Bibliographic Reference(s)

  • 1) CCIR Doc. 10/189-E, June 1, 1981 . Draft Recommendation of the European Broadcast Union, “Digital Coding for the Emission of High Quality Sound Signals in Satellite Broadcasting” . EXTERNAL
  • 2) Heaslett A. , “Some Criteria for the Selection for Sampling Rates in Digital Audio Systems” , J. Audio Engineering Society , Vol. 26 , p. 66 – 70 , January/February 1978 . EXTERNAL
  • 3) CCIR Doc. 10/233-E, August 20, 1981 , Proposal by Italy, “Compatible Family of Digital Audio Coding Standards for Studio Applications” . EXTERNAL
  • 4) EIAJ Technical File, ‘STC-008’. EXTERNAL
  • 5) EIAJ Technical File, ‘STC-007’. EXTERNAL
  • 6) Crochiere R. E. Rabiner L. R. , “Interpolation and Decimation of Digital Signals–A Tutorial Review” , IEEE Proceedings , Vol. 69 , No. 3 , p. 300 – 331 , March 1981 . EXTERNAL
  • 7) Lagedec R. , “A New Approach to Digital Sampling Frequency Conversion” , 68th Audio Engineering Society Convention, March 1981 . EXTERNAL
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J. J. Gibson; A Review of Issues Related to the Choice of Sample Rates for Digital Audio, SMPTE Meetings and Conferences ( February 1982); SMPTE, 1982. Available at https://doi.org/10.5594/M00626
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J. J. Gibson; A Review of Issues Related to the Choice of Sample Rates for Digital Audio, SMPTE Meetings and Conferences ( February 1982); SMPTE, 1982. Available at https://doi.org/10.5594/M00626

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J. J. Gibson; A Review of Issues Related to the Choice of Sample Rates for Digital Audio, SMPTE Meetings and Conferences ( February 1982); SMPTE, 1982. Available at https://doi.org/10.5594/M00626
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<span class="citation">J. J. Gibson; <cite>A Review of Issues Related to the Choice of Sample Rates for Digital Audio</cite>, SMPTE Meetings and Conferences ( February 1982); SMPTE, 1982. Available at <a href="https://doi.org/10.5594/M00626" target="_blank" rel="noopener">https://doi.org/10.5594/M00626</a></span>

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Preview:
J. J. Gibson; A Review of Issues Related to the Choice of Sample Rates for Digital Audio, SMPTE Meetings and Conferences ( February 1982); SMPTE, 1982
doi: 10.5594/M00626
url: https://doi.org/10.5594/M00626
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J. J. Gibson; <cite id="bib-10-5594-m00626">A Review of Issues Related to the Choice of Sample Rates for Digital Audio</cite>, SMPTE Meetings and Conferences ( February 1982); SMPTE, 1982
<span class="doi">10.5594/M00626</span>
</li>