PageWK29 Archives - Page 3 of 3 - Standards Michigan

Study on the Relationship Between Speech Intelligibility and Quality Estimates in University Classrooms

Arkadiy Prodeus, et al

Department of Acoustic and Multimedia Electronic Systems, National Technical University of Ukraine

Abstract: In this paper, correlation coefficients between the five objective estimates of speech quality, on the one hand, and the Speech Transmission Index as speech intelligibility measure, on the other hand, were estimated. This comparison was performed using binaural room impulse responses corresponded to different points of the three university auditoriums of different sizes. Speech quality was assessed using intrusive speech quality measures: Segmental Signal-to-Noise Ratio, Logarithmic Spectral Distortion, Frequency-Weighted Segmental Signal-to-Noise Ratio, Bark Spectral Distortion, and Perceptual Evaluation of Speech Quality. The formation of signals distorted by reverberation was performed by convolving of pure signals with binaural room impulse responses of the premises. A high level of correlation (0.6-0.99) of Bark Spectral Distortion estimates with estimates of the Speech Transmission Index for rooms of different sizes was revealed. Correlation of estimates (0.65-0.98) of Frequency-Weighted Segmental Signal-to-Noise ratio with Speech Transmission Index estimates was observed for medium and large rooms. Significant correlation (0.96-0.99) of Perceptual Evaluation of Speech Quality with Speech Transmission Index estimates was observed only for large audiences. At the same time, estimates of the Segmental Signal-to-Noise Ratio and Logarithmic Spectral Distortion turned out to be practically uncorrelated with Speech Transmission Index estimates for all studied premises.

CLICK HERE to order complete paper

Campus Outdoor Lighting

“The Starry Night” | Vincent van Gogh

The IEEE Education & Healthcare Facilities Committee has completed a chapter on recommended practice for designing, building, operating and maintaining campus exterior lighting systems in the forthcoming IEEE 3001.9 Recommended Practice for the Design of Power Systems for Supplying Commercial and Industrial Lighting Systems; a new IEEE Standards Association title inspired by, and derived from, the legacy “IEEE Red Book“. The entire IEEE Color Book suite is in the process of being replaced by the IEEE 3000 Standards Collection™ which offers faster-moving and more scaleable, guidance to campus power system designers.

Campus exterior lighting systems generally run in the 100 to 10,000 fixture range and are, arguably, the most visible characteristic of public safety infrastructure. Some major research universities have exterior lighting systems that are larger and more complex than cooperative and municipal power company lighting systems which are regulated by public service commissions.

While there has been considerable expertise in developing illumination concepts by the National Electrical Manufacturers Association, Illumination Engineering Society, the American Society of Heating and Refrigeration Engineers, the International Electrotechnical Commission and the International Commission on Illumination, none of them contribute to leading practice discovery for the actual power chain for these large scale systems on a college campus. The standard of care has been borrowed, somewhat anecdotally, from public utility community lighting system practice. These concepts need to be revisited as the emergent #SmartCampus takes shape.

Electrical power professionals who service the education and university-affiliated healthcare facility industry should communicate directly with Mike Anthony (maanthon@umich.edu) or Jim Harvey (jharvey@umich.edu). This project is also on the standing agenda of the IEEE E&H committee which meets online 4 times monthly — every other Tuesday — in European and American time zones. Login credentials are available on its draft agenda page.

University of Toronto night canada facebook timeline 1929 719

Late_night_SFSU_quad night San Francisco State University

st joseph university night winterish 1923 721

Champlain College vermont fall facebook summer or spring cover night 1921 720

University of Alaska Fairbanks facebook timeline northern lights 1922 721

University_of_Utah_Hospital_in_2009 1921 721 featured twlight

valdosta state university facebook cover spring summer twilight 1921 719

Issue: [15-199]

Category: Electrical, Public Safety, Architectural, #SmartCampus, Space Planning, Risk Management

Contact: Mike Anthony, Kane Howard, Jim Harvey, Dev Paul, Steven Townsend, Kane Howard

LEARN MORE:

Sound Transmission

This content is accessible to paid subscribers. To view it please enter your password below or send mike@standardsmichigan.com a request for subscription details.

Stadium Lights

Football Field Lighting

Illumination 100

“Season of Light Illumination”

Standards South Carolina

University of South Carolina Facilities Department

סיור אומנות ציבורית של אוניברסיטת בן גוריון

The Standards Institution of Israel

Elettrotecnico Lingua Franca

In our collaboration with the IEEE Education & Healthcare Facilities Committee we are sensitive to the point of view of our research and standards setting colleagues in other nations; among them CEN (European Committee for Standardization) and CENELEC (European Committee for Electrotechnical Standardization) are two standardization organizations in Europe, and they have some similarities and differences.

CEN develops standards for a wide range of products, services, and processes, including construction, consumer goods, food and agriculture, and many others.
CENELEC, on the other hand, focuses specifically on electrotechnical standards, including electrical equipment, electronic components, and telecommunications.

Another key difference between CEN and CENELEC is their membership. CEN has members from 34 European countries, including national standardization bodies, industry associations, and consumer organizations. CENELEC has members from 34 European countries as well, but they are limited to national electrotechnical committees, which are responsible for electrotechnical standardization in their respective countries.

Despite their differences, both CEN and CENELEC play important roles in the development and promotion of European standards, and their standards are widely recognized and used across Europe and beyond. Its leadership committees meet this week in Brussels. CLICK HERE to access videolinks.

We had the pleasure to welcome the new CENELEC President Elect Mr Riccardo Lama at our offices, for a moment to engage with the CEN and CENELEC senior management team and the CEN and CENELEC Presidents Mr Stefano Calzolari and Mr Wolfgang Niedziella.@CEInorme @IECStandards pic.twitter.com/ynk9ViWb60

— CEN and CENELEC (@Standards4EU) January 17, 2024

Electropedia: The World’s Online Electrotechnical Vocabulary

Art Studios

“De Schilderkonst” 1666 Johannes Vermeer

2024/2025/2026 ICC CODE DEVELOPMENT SCHEDULE

Last update: September 30 2021

Safety and sustainability for any facility begins with an understanding of who shall occupy the built environment and what they will be doing in it. Since we are guiding young people toward their goal of building things that are useful and beautiful we select the International Building Code as a starting point for an occupancy that requires a more elevated concern for safety than a typical classroom.

2021 International Building Code Section 307 High Hazard Group H

High-hazard occupancies in each of the International Code Council code development groups A, B and C; fetch back to these classifications.

Public input for the 2024 International Building Code will be received until January 8, 2024.

For the purpose of formulating our own proposals we begin with the developmental transcripts of the previous code cycle. Recommended search terms: “Section 307”, “Studio”, “Classroom” “University” will give you a sample of the ideas in play. The complete monograph is linked below:

2021 Group A Complete Proposed Changes Monograph (2306 Pages)

2021 PUBLIC COMMENT HEARING SCHEDULE September 21 – 26, 2021

Webcast: 2021 Group A Public Comment Hearings

Titles in the ICC catalog are relevant to nearly every study unit in our Syllabus. See our CALENDAR for topics and do not be shy about clicking in any business day at 16:00 UTC (11 AM ET).

Issue: [18-166]

Category: Various

Colleagues: Mike Anthony, Marcelo Hirschler, Richard Robben

More

Mount Holyoke University: Safety Guide for Art Studios

Standard Methods of Fire Tests for Flame Propagation of Textiles and Films

IEEE: Textile humidity sensors

Fire at Pratt Institute Destroys Studios and Artwork of Students

Safety Guide for Art Studios

Princeton University Art Safety

Advancing the Effective Use of Light

Standards New York

Control of Noise at Work

The Control of Noise at Work Regulations came into force for all industry sectors in Great Britain on 6 April 2006 (except for the music and entertainment sectors where they came into force on 6 April 2008). The aim of the Noise Regulations is to ensure that workers’ hearing is protected from excessive noise at their place of work, which could cause them to lose their hearing and/or to suffer from tinnitus (permanent ringing in the ears).

The level at which employers must provide hearing protection and hearing protection zones is 85 dB(A) (daily or weekly average exposure) and the level at which employers must assess the risk to workers’ health and provide them with information and training is 80 dB(A). There is also an exposure limit value of 87 dB(A), taking account of any reduction in exposure provided by hearing protection, above which workers must not be exposed.

Standards impact industrial growth

Tag Archives: WK29