Précis of the TC-25CSS Theater Testing Report

Metadata

Publisher: SMPTE
Doc Type: Journal Article
Article Type: orig-research
Abstract: In 2014, SMPTE’s B-Chain Study Group Theater Testing Data Report Group released a major report about the acoustical performance of sound systems in four cinemas and two dubbing stages. This paper provides a précis of this B-Chain report, which is probably the most comprehensive in-depth analysis of cinema audio spaces that has ever been undertaken. The report presents numerous frequency and temporal responses for these sound systems, with in depth analysis of the center channel systems. Being based on the measured impulse responses of the systems, the report’s measurement process departed from current SMPTE standardized methods, which are “time blind.” As such, considerable insights have been gained into the behavior of these systems and the way in which frequency responses develop over time. Of particular interest is the minimal contribution that the reverberant sound field makes to the high-frequency responses. The measured responses indicate significant disparity among venues in the responses at low and high frequencies. One of the report’s conclusions is that the commonly-accepted acoustic mechanism for the roll off of high frequencies known as the X curve does not occur. Discussion of the report’s key features such as the analysis methods, trends in the responses, and conclusions is provided in the paper.
Publication Date: 2015-07-01
DOI: 10.5594/j18575
Link: https://doi.org/10.5594/j18575
Author(s): Glenn Leembruggen

Source Data (JSON)

Full registry record with provenance metadata. Open directly: /api/doc/10.5594-j18575.json

Reference this Doc

Plain text (ISO 690 compliant)

Preview:

Glenn Leembruggen; Précis of the TC-25CSS Theater Testing Report, SMPTE Motion Imaging Journal ( Volume: 124, Issue: 5, July 2015); SMPTE, 2015. Available at https://doi.org/10.5594/j18575

Snippet:

Glenn Leembruggen; Précis of the TC-25CSS Theater Testing Report, SMPTE Motion Imaging Journal ( Volume: 124, Issue: 5, July 2015); SMPTE, 2015. Available at https://doi.org/10.5594/j18575

HTML (ISO 690 compliant)

Preview:

Glenn Leembruggen; Précis of the TC-25CSS Theater Testing Report, SMPTE Motion Imaging Journal ( Volume: 124, Issue: 5, July 2015); SMPTE, 2015. Available at https://doi.org/10.5594/j18575

Snippet:

<span class="citation">Glenn Leembruggen; <cite>Précis of the TC-25CSS Theater Testing Report</cite>, SMPTE Motion Imaging Journal ( Volume: 124, Issue: 5, July 2015); SMPTE, 2015. Available at <a href="https://doi.org/10.5594/j18575" target="_blank" rel="noopener">https://doi.org/10.5594/j18575</a></span>

SMPTE's HTML Pub

Preview:

Glenn Leembruggen; Précis of the TC-25CSS Theater Testing Report, SMPTE Motion Imaging Journal ( Volume: 124, Issue: 5, July 2015); SMPTE, 2015
doi: 10.5594/j18575
url: https://doi.org/10.5594/j18575

Snippet:

<li>
Glenn Leembruggen; <cite id="bib-10-5594-j18575">Précis of the TC-25CSS Theater Testing Report</cite>, SMPTE Motion Imaging Journal ( Volume: 124, Issue: 5, July 2015); SMPTE, 2015
<span class="doi">10.5594/j18575</span>
</li>