Speech Intelligibility and Audio Monitoring in OTT

Metadata

Publisher: SMPTE
Doc Type: Journal Article
Content Type: Original Research
Abbreviated Title: SMPTE Motion Imaging Jour.
Volume: 134, No. 3, pp. 22–25
Abstract: The paper details ways of controlling speech loudness and speech intelligibility in Over-the-Top (OTT) and broadcast production, primarily based on a new metric, Loudness-to-Dialog ratio (LDR), and calibrated sound monitoring at a moderate listening level. Principles of loudness normalization are described as a study that defines and quantifies LDR for use in broadcast and OTT. Findings may be applied during mixing or dubbing, used for default settings in Next-Generation Audio (NGA) delivery, and automated Quality Control (QC) as a machine learning indicator.
Publication Date: 2025-05-01
DOI: 10.5594/JMI.2025/EWDC4700
ISSN: Print: 1545-0279 | Electronic: 2160-2492
Link: https://doi.org/10.5594/JMI.2025/EWDC4700
Author(s): Thomas Lund
Keyword(s): Loudness To Dialog Ratio (LDR), Definition of Dialog Level, Listening Level in Production
Copyright: © 2025 SMPTE

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Thomas Lund; Speech Intelligibility and Audio Monitoring in OTT, MIJ 2025, Volume 134, Number 3 (pp. 22 to 25); SMPTE, 2025. Available at https://doi.org/10.5594/JMI.2025/EWDC4700

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Thomas Lund; Speech Intelligibility and Audio Monitoring in OTT, MIJ 2025, Volume 134, Number 3 (pp. 22 to 25); SMPTE, 2025. Available at https://doi.org/10.5594/JMI.2025/EWDC4700

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Thomas Lund; Speech Intelligibility and Audio Monitoring in OTT, MIJ 2025, Volume 134, Number 3 (pp. 22 to 25); SMPTE, 2025. Available at https://doi.org/10.5594/JMI.2025/EWDC4700

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<span class="citation">Thomas Lund; <cite>Speech Intelligibility and Audio Monitoring in OTT</cite>, MIJ 2025, Volume 134, Number 3 (pp. 22 to 25); SMPTE, 2025. Available at <a href="https://doi.org/10.5594/JMI.2025/EWDC4700" target="_blank" rel="noopener">https://doi.org/10.5594/JMI.2025/EWDC4700</a></span>

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Thomas Lund; Speech Intelligibility and Audio Monitoring in OTT, MIJ 2025, Volume 134, Number 3 (pp. 22 to 25); SMPTE, 2025
doi: 10.5594/JMI.2025/EWDC4700
url: https://doi.org/10.5594/JMI.2025/EWDC4700

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<li>
Thomas Lund; <cite id="bib-10-5594-jmi-2025-ewdc4700">Speech Intelligibility and Audio Monitoring in OTT</cite>, MIJ 2025, Volume 134, Number 3 (pp. 22 to 25); SMPTE, 2025
<span class="doi">10.5594/JMI.2025/EWDC4700</span>
</li>