Application of Sub-Band ADPCM for Post-Production and Broadcast Audio

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Publisher: SMPTE — White Plains, NY, USA
Doc Type: Journal Article
Content Type: Original Research
Abbreviated Title: SMPTE J
Volume: 108, No. 10, pp. 724–727
Abstract: Digital program delivery is becoming a reality. It offers more programs, a higher definition picture, and an enhanced audio experience. To serve this market, contribution and distribution systems in the broadcast and post-production industries must move rapidly to provide the digital infrastructure to cope with this evolution. This poses many questions: In terms of financial, technological, and bandwidth constraints, how can one sustain a quality multichannel audio signal through a typical broadcast chain, allowing for interim signal processing requirements. This paper proposes the use of the apt-X algorithm (proprietary encode/decode algorithm for digital audio data compression) as an ideal mezzanine level audio coding system for use in conjunction with digital audio broadcasting (DAB) and digital television (DTV) emission standards. This preserves the audio quality throughout the broadcast chain and alleviates production problems arising from psychoacoustic artifacts.
Publication Date: 1999-10-01
DOI: 10.5594/J15660
ISSN: Print: 0036-1682
Link: https://doi.org/10.5594/J15660
Author(s): John KnaptonAudio Processing Technology Ltd., Belfast, N. Ireland BT2 9JQ
bio
Specializing in digital electronics and communications, John Knapton has worked in the industry for the past 17 years. He has dedicated the last 7 years to the professional audio industry in particular. As sales and marketing director at APT, Knapton focused on the successful implementation of the apt-X algorithm throughout the film, post-production, music, and broadcast markets. Knapton is a graduate in electronic engineering from the University of Ulster at Belfast.
Copyright: © 1999 Society of Motion Picture and Television Engineers, Inc.

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John Knapton; Application of Sub-Band ADPCM for Post-Production and Broadcast Audio, SMPTE Journal ( Volume: 108, Issue: 10, October 1999); SMPTE, 1999. Available at https://doi.org/10.5594/J15660

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John Knapton; Application of Sub-Band ADPCM for Post-Production and Broadcast Audio, SMPTE Journal ( Volume: 108, Issue: 10, October 1999); SMPTE, 1999. Available at https://doi.org/10.5594/J15660

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John Knapton; Application of Sub-Band ADPCM for Post-Production and Broadcast Audio, SMPTE Journal ( Volume: 108, Issue: 10, October 1999); SMPTE, 1999. Available at https://doi.org/10.5594/J15660

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<span class="citation">John Knapton; <cite>Application of Sub-Band ADPCM for Post-Production and Broadcast Audio</cite>, SMPTE Journal ( Volume: 108, Issue: 10, October 1999); SMPTE, 1999. Available at <a href="https://doi.org/10.5594/J15660" target="_blank" rel="noopener">https://doi.org/10.5594/J15660</a></span>

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John Knapton; Application of Sub-Band ADPCM for Post-Production and Broadcast Audio, SMPTE Journal ( Volume: 108, Issue: 10, October 1999); SMPTE, 1999
doi: 10.5594/J15660
url: https://doi.org/10.5594/J15660

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John Knapton; <cite id="bib-10-5594-j15660">Application of Sub-Band ADPCM for Post-Production and Broadcast Audio</cite>, SMPTE Journal ( Volume: 108, Issue: 10, October 1999); SMPTE, 1999
<span class="doi">10.5594/J15660</span>
</li>