valuable TL papers & Software: BBC, IRC, E-A-R, INSUL

This section contains valuable papers and measurement reports related to transmission loss. It includes organisations as BBC, IRC, E-A-R, etc.

valuable TL papers & Software: BBC, IRC, E-A-R, INSUL

Postby Eric.Desart » Fri Feb 18, 2005 3:26 pm

This page is specific targetted to Transmission Loss related stuff
For mineral wool (fiberglas, rockwool, etc) which is indirect related look here:
http://forum.studiotips.com/viewtopic.php?t=1474 (organisations, health issues, producers, where to buy, etc.)


SOFTWARE

  1. INSUL is a quick tool for predicting the sound insulation of walls, floors and ceilings.
    MARCHALL DAY ACOUSTICS
    With extensive drop down menus to select materials, and simple choices for construction details you can quickly evaluate different constructions. INSUL shows a picture of your construction and a graph of the 1/3 octave TLs.
    One can  download a FREE Tryout version with some practical limitations, but which is very helpful in understanding the related concepts.
    http://www.insul.co.nz    Image    Image
    The non-limited version cost roughly $1000.

    Note from Eric: take into account that this is a theoretical model, based on accepted and described algorithms.
    However practical comparison with the IRC papers and measurements show that the model does not take stud spacing and other phenomena into account.  

    Brian Ravnaas made an analysis based on IRC measurements showing the neglect in the program of some mass-spring-mass related phenomena, resulting in deviating mass-spring-mass resonance frequenties versus real live measurements.
    Also laymen should be carefull to use whatever software.  Software is just a tool and does not substitute acoustic knowledge.  As such any model will use stylized principles. This program allows to enter whatever cavity one likes.
    It has e.g. no sense to calculate enormous cavities and hope that the results will represent real live acoustic behavior.
    Certainly with high transmission loss values FLANKING sound paths will limit insulation and so on.

    Even when measured in laboratories under very careful controled conditions, rather simple walls can show significant deviating transmission loss values.  A comparative study done in 24 official accredited laboratories spread over many countries, subsidized by the European Community [EC/EU], really shows the related question marks.

Calculation Tools
  1. Eric's related tools
    Look at the Studiotips topic:
    http://forum.studiotips.com/viewtopic.php?t=1414
    Copyright: http://www.acoustics-noise.com
    Direct related download files are:
    1. MSMresonance03.zip
      This file allows to calculate the Mass-Spring-Mass Resonance of different combinations of walls.
      It also allows to calculate the relative impact on Insulation [TL] of playing with the masses (wall leafs) and cavity widths.
    2. AcousticSelector03.zip
      This file includes > 50 walls (most of them gypsum board walls).
      This file is more meant as an educational file to show the difference between weighted insulation values as STC [US], Rw [Europe], MTC [US], Speech, Music, and so on.
    3. USNorms3.zip
      It allows to calculate STC-OITC and several music weighted TL values. It also alows to enter custom weighting curves. It makes the impact of the MSM on the overall TL very clear.

  2. A VERY good Excel File made by Brian Ravnaas:
    Brian's description:
    This sheet offers these:
    1. sheet with limited selectable menu with pre-loaded masses  (Brian might expand this to cover everything)
    2. sheet where mass is entered manually
    3. traditional calc sheet with manually entered mass
    1 & 2 compensate for stud volume, adjusting the volume of insulation and air
    Download Brian's MS Excel File: http://forum.studiotips.com/files/fmamcalculatorv2.xls
    Related thread introducing this valuable file: http://forum.studiotips.com/viewtopic.php?t=1522
    Note Eric:
    One can safely state that only few (if any) people visiting Studio & Home theater related groups have Brian's professional related experience.
PAPERS

British Broadcasting Company [BBC] • R&D department
Copyright: http://www.bbc.co.uk/rd/pubs/copyright.shtml
BBC R&D has a staff of around 160 engineers, mathematicians and scientists based on an annual.budget of about £13 million [24.8 million US$ - 18.8 million Euro], of which £10 million [19 million US$ - 14.4 million Euro] is governance funding, with the residue coming from a mixture of licensing and funded work.
The have in house accredited measurement facilities (Anechoic, Reverberant, Transmission Loss) complying with the related ISO and ASTM standards.
Overview Papers 1970 - 1996 (pdf doc): http://www.bbc.co.uk/rd/pubs/reports/rpt60s_70to96.pdf
More recent publications: http://www.bbc.co.uk/rd/pubs/latest/index.shtml
The abbreviation RD in the Report numbers stand for Research & Development Report
  1. Gypsum board walls
    1. BBC RD 1995/6 by G.D. Plumb M.A. (Cantab) • PDF 374 kB • 15 pp.
      Lightweight partitions having improved low frequency sound insulations.
      www.bbc.co.uk/rd/pubs/reports/1995-06.pdf
  2. Gypsum board walls with integrated absorption
    1. BBC RD 1995/7 G.D. Plumb M.A. (Cantab) • PDF 563 kB • 16 pp.
      Lightweight partitions - Further investigations of partitions having built-in acoustic treatment.
      www.bbc.co.uk/rd/pubs/reports/1995-07.pdf
  3. The Sound Insulations Of Studio Doors:  Part 1: Door Blanks
    1. BBC RD 1994/14 G.D. Plumb, M.A. (Cantab) and R. Clark, B. Eng. (Hons) • PDF 1,098 kB • 20 pp.
      The sound insulations of a range of different door blanks were measured. The results were compared with the sound insulations of existing BBC door blanks. The new doors were made from medium density fibreboard (MDF) which is more stable than the blockboard used in existing studio doors. Consequently, they should require less maintenance and adjustment and should have a longer lifespan. The doors had higher sound insulations for their weight than existing
      designs, which might permit savings in the costs of the surrounding building structures. Overall construction costs of the door blanks themselves are likely to be similar to those of existing designs.
      www.bbc.co.uk/rd/pubs/reports/1994-14.pdf
  4. The Sound Insulations Of Studio Doors:  Part 2: Door Seals
    1. RD 1994/15 G.D. Plumb, M.A. (Cantab) and R. Clark, B.Eng. (Hons) • PDF 1,137 kB • 16 pp.
      The acoustic performances of a range of proprietary acoustic door seals were measured in the Transmission Suite. The seals were fitted to a standard BBC lead-cored door hung in a purpose-built blockwork wall. As a result of the work, suitable plant-on magnetic perimeter seals and drop-down threshold seals are recommended. The use of these seals will simplify the existing door frame design and should reduce costs without compromising the acoustic performances.
      www.bbc.co.uk/rd/pubs/reports/1994-15.pdf
  5. My neighbours are too noisy, what can I do?
    1. It's been the subject of many TV programmes, but you always think it will never happen to you.
      But what can you do if you find you have neighbours from hell?
      http://www.bbc.co.uk/crime/support/noisyneighbours.
Institute for Research in Construction [IRC], National Research Council Canada [NRC]
Copyright: http://irc.nrc-cnrc.gc.ca/notices.html
The abbreviation IR in the Report numbers stands for Internal Report.
The abbreviation RR in the Report numbers stands for Research Report.
The abbreviation IRC in the Report numbers stands for Institute for Research in Construction.
Recent projects in building acoustics at NRC • PDF 179 kB • 3pp. • Sept. 2004
This gives an overview of related studies and reports.
Bradley, J.S.; Gover, B.N.; Halliwell, R.E.; Nightingale, T.R.T.; Quirt, J.D.; Warnock, A.C.C.
http://irc.nrc-cnrc.gc.ca/fulltext/nrcc ... c44205.pdf
  1. Gypsum board walls - airborne transmission
    1. IRC's Acoustics Research - Sound Transmission through Gypsum Board Walls - Phase I
      http://irc.nrc-cnrc.gc.ca/ie/acoustics/walls1
      A brief description of the project related to IRC-IR-693 and IRC-IR-761 [This link does not include any measurement data itself.]
    2. IRC-IR-693 Full document in PDF • 2,115 kB • 83 pp. • Oct. 1995
      Sound Transmission Through Gypsum Board Walls: Sound Transmission Results
      Quirt, J.D.; Warnock, A.C.C.; Birta, J.A.
      http://irc.nrc-cnrc.gc.ca/irc/fulltext/ir693
      Direct link:
      http://irc.nrc-cnrc.gc.ca/irc/fulltext/ir693/ir693.pdf
    3. IRC-IR-761 Full document in PDF • 5, 540 kB • 370 pp. • March 1998
      Gypsum Board Walls: Transmission Loss Data
      Halliwell, R.E.; Nightingale, T.R.T.; Warnock, A.C.C.; Birta, J.A.
      http://irc.nrc-cnrc.gc.ca/fulltext/ir761
      Direct link:
      http://irc.nrc-cnrc.gc.ca/irc/fulltext/ir761/ir761.pdf
    4. IRC-IR-832 Full document in PDF • 1.317 kB • 57 pp. • Jan. 2002
      Sound Insulation of Load Bearing Shear Resistant Wood and Steel Stud Walls
      Nightingale, T.R.T.; Halliwell, R.E.; Quirt, J.D.; Birta, J.A.
      http://irc.nrc-cnrc.gc.ca/fulltext/ir832
      Direct link:
      http://irc.nrc-cnrc.gc.ca/irc/fulltext/ir832/ir832.pdf
    5. NRCC-44692 Full document in PDF • 721 kB • 9pp. • May 2001
      Noise Control Engineering Journal, v. 49, no. 5, Sept-Oct. 2001, pp. 216-223
      A Simple model of the sound insulation of gypsum board on resilient supports [RC]
      Bradley, J.S.; Birta, J.A
      http://irc.nrc-cnrc.gc.ca/fulltext/nrcc44692/
      Direct link:
      http://irc.nrc-cnrc.gc.ca/fulltext/nrcc ... c44692.pdf
           Some other documents and/or links related to IRC-IR-693 and IRC-IR-761
      • Noise Isolation Provided by Gypsum Board Partitions
        Canada Mortgage and Housing Corporation
        In July 2001, the CMHC commissioned MJM Acoustical Consultants Inc., to analyse the data contained in IRC report no 761
        Conclusions of the study:
        http://www.cmhc.ca/publications/en/rh-p ... 2-108.html
      • Michel Morin, MJM Acoustical Consultants Inc., Montreal
        Research Projects and Publications
        http://www.mjm.qc.ca/en/recherche_pub.html
      • Sound transmission through periodically frame parallel plates
        by Lin and Garrelick
        JASA, vol 61, #4, pp. 1014-1018, 1977
        Reference provided by Brian Dayton
      • Fact Sheet on Cavity Filling • PDF 167 kB • 5 pp.
        Double leaf lightweight partition walls, with plasterboard as a leaf material and mineral wool as the cavity filling, constitutes the most effective separating walls between adjacent rooms for the provision of acoustical performance at moderate cost.
        http://www.eurima.org/downloads/Fact_Sh ... illing.pdf
        This document is not direct but indirect related, showing some basic principles.
        It's a pitty the document gives not the basic measurements themselves. The complete underlaying investigations and measurement data should probably extremely useful telling a lot more than shown now.
      • Owens Corning - QUIETZONE® ACOUSTICAL BATTS • PDF 375 kB • 16 pp.
        WE’VE BEEN QUIET ABOUT BEING QUIET TOO LONG!
        http://www.owenscorning.com/worldwide/a ... eBro_E.pdf
      • Owens Corning - Fiberglass Insulation - Cellulose Insulation • PDF 339 kB • 12 pp.
        Facts you should know before you insulate
        http://www.owenscorning.com/worldwide/a ... 11529E.pdf
      • Owens Corning - Acoustical Wall Insulation Design Guide • PDF 1,128 kB • 36 pp.
        Based on:
        NRC Report IRC-IR-693, October 1995 “Summary Report for Consortium on Gypsum Board Walls: Sound transmission Results”. ...
        http://www.owenscorning.com/worldwide/a ... 011340.pdf
      • Isover (Saint Gobain group) - Fiberglass = glass wool Insulation • Cavity filling • PDF 55 kB • 5 pp.
        How does a fibrous product improve the acoustic performance of a wall?
        A very interesting summary refering to more studies but without any exact references (looks and feels as an internal Isover document)
        The referred pictures aren't included in the PDF document.
        It should be nice to exactly know those references and pictures.
        http://80.81.172.145/files/pdf/awg_paper_CH_1.pdf
      • from IR-693 p83 (last page)
        http://irc.nrc-cnrc.gc.ca/fulltext/ir693/ir693.pdf
        "Increasing the fraction of the cavity filled with absorptive material improved the sound transmission loss steadily, in a partition with negligible structural connection between the surfaces. With half-filled cavity the STC was 6 dB lower than with a full cavity."
  2. Heavy Block walls - airborne transmission
    1. IRC-BRN-217 Full document in PDF • 144 kB • 24 pp.
      Sound Transmission Loss of Masonry Walls: Tests on 90, 140, 190, 240 and 290 mm Concrete Block Walls with Various Surface Finishes.
      Warnock, A.C.C.; Monk, D.W.
      http://irc.nrc-cnrc.gc.ca/fulltext/brn217
      Direct link:
      http://irc.nrc-cnrc.gc.ca/irc/fulltext/ ... brn217.pdf
    2. IRC-IR-586 Full document in PDF • 248 kB • 32 pp. , January, 1990
      Sound Transmission Loss Measurements Through 190 mm and 140 mm Blocks With Added Drywall and Through Cavity Block Walls.
      Warnock, A.C.C.
      Direct link:
      URL: http://irc.nrc-cnrc.gc.ca/fulltext/ir586.pdf
  3. Floors - impact & airborne transmission
    1. IRC IR-766 Full document in PDF • 3,265 kB • 140 pp. •
      Summary Report for Consortium on Fire Resistance and Sound Insulation of Floors: Sound Transmission Class and Impact Insulation Class Results
      Warnock, A.C.C.; Birta, J.A.
      IR-766
      http://irc.nrc-cnrc.gc.ca/fulltext/ir766
      Direct link:
      http://irc.nrc-cnrc.gc.ca/irc/fulltext/ir766/ir766.pdf
    2. IRC-IR-811 Full document in PDF • 2,224 kB • 319 pp. , July 2000,
      Detailed Report for Consortium on Fire Resistance and Sound Insulation of Floors: Sound Transmission and Impact Insulation Data in 1/3 Octave Bands
      Internal Report, Institute for Research in Construction.
      Warnock, A.C.C.; Birta, J.A.
      http://irc.nrc-cnrc.gc.ca/fulltext/ir811
      Direct link:
      http://irc.nrc-cnrc.gc.ca/irc/fulltext/ir811/ir811.pdf
    3. IRC-RR-169 Full document in PDF •  2,115 kB • 117 pp. , January 2005
      Available NOW !!!!!!
      Was around end may 2005 available on the net, originally planned to be published late 2004,
      Summary Report for Consortium on Fire Resistance and Sound Insulation of Floors: Sound Transmission and Impact Insulation Data
      Warnock, A.C.C.; Birta, J.A.
        Abstract:
        This project was a continuation of an earlier project 1,2 to determine the factors that are important in determining the degree of sound transmission through floors.
        Studies of fire resistance of floors carried out in this joint project are dealt with in other IRC internal reports.
        The report presents measurements of airborne and impact sound transmission through 67 floor assemblies—wood joists, wood trusses, wood Ijoists, and cold-formed C-shape steel joists.
        Three types of sound-absorbing material were used and two thicknesses of Type X gypsum board.
        The results of this phase of the project were combined with those from Phase I and used to refine a regression model for estimating sound transmission class, impact insulation class and some other single-number ratings.
        The regression model was used to create a small program for estimating these ratings for a restricted set of common floors.
      http://irc.nrc-cnrc.gc.ca/fulltext/rr169
      Direct link:
      http://irc.nrc-cnrc.gc.ca/fulltext/rr169/rr169.pdf
  4. Floor Coverings - Effect on impact transmission loss
    1. IRC-IR-802 Full document in PDF • 253 kB • 34 pp.
      Impact Sound Measurements on Floors Covered with Small Patches of Resilient Materials or Floating Assemblies
      Warnock, A.C.C.
      http://irc.nrc-cnrc.gc.ca/fulltext/ir802
      Direct link:
      http://irc.nrc-cnrc.gc.ca/irc/fulltext/ir802/ir802.pdf
  5. Windows - Airborne transmission
    1. IRC-BRN-172 Full document in PDF • 253 kB • 7pp. , April, 1981
      MEASUREMENTS OF THE SOUND TRANSMISSION LOSS OF WINDOWS
      by J. D. Ouirt
      Institute for Research in Construction, National Research Council Canada
      http://irc.nrc-cnrc.gc.ca/fulltext/brn172.pdf
  6. Effect of electrical outlets
    1. IRC-IR-772 Full document in PDF • 449 kB • 23 pp.
      Effect of Electrical Outlet Boxes on Sound Insulation of a Double Leaf Wall
      Nightingale, T.R.T.
      IRC-IR-772
      http://irc.nrc-cnrc.gc.ca/fulltext/ir772/
      Direct link:
      http://irc.nrc-cnrc.gc.ca/fulltext/ir772/ir772.pdf
  7. Flanking noise - Effect on impact transmission loss
    1. IRC-IR-754 Full document in PDF • 1,213 kB • 153 pp. • Dec. 1997
      Flanking Transmission at Joints in Multi-Family Dwellings. Phase 1: Effects of Fire Stops at Floor/Wall Intersections
      Internal Report, Institute for Research in Construction
      Nightingale, T.R.T.; Halliwell, R.E.
      http://irc.nrc-cnrc.gc.ca/fulltext/ir-754
      Direct link:
      http://irc.nrc-cnrc.gc.ca/irc/fulltext/ ... ir-754.pdf
    2. NRCC-49677 Full document in PDF • 2.3 MB • 232 pp. • June 1, 2007
      Best Practices Guide on Fire Stops and Fire Blocks and Their Impact on Sound Transmission:
      Richardson, J.K.; Quirt, J.D.; Hlady, R.
      http://irc.nrc-cnrc.gc.ca/pubs/fulltext/nrcc49677
      Direct link:
      http://irc.nrc-cnrc.gc.ca/pubs/fulltext ... c49677.pdf
    3. IRC-RR-103 Full document in PDF • 5,196 kB • 288 pp. • Nov. 2002
      Flanking Transmission in Multi-Family Dwellings Phase II : Effects of Continuous Structural Elements at Wall/Floor Junctions
      Research Report, Institute for Research in Construction
      Nightingale, T.R.; Halliwell, R.E.; Quirt, J.D.
      http://irc.nrc-cnrc.gc.ca/fulltext/rr103
      Direct link:
      http://irc.nrc-cnrc.gc.ca/irc/fulltext/rr103/rr103.pdf
    4. IRC-RR-168 Full document in PDF • 5,281kB • 401 pp. • March 2005
      Available NOW !!!!!!
      Was around end may 2005 available on the net, originally planned to be published late 2004,
      Flanking transmission at the wall/floor junction in multifamily dwellings - quantification and methods of suppression
      Research Report, Institute for Research in Construction
      Nightingale, T.R.T.; Halliwell, R.E.; Quirt, J.D.; King, F.
        Abstract:
        The primary focus of this project is flanking transmission in wood framed construction caused by the junction of a partition wall and floor that had continuous structural elements which pass under the partition wall separating two multifamily dwellings.
        Flanking transmission is sound transmission between two rooms by paths other than directly through the nominally separating wall or floor assembly.
        Flanking exists in all buildings and its importance in determining the apparent sound insulation (that perceived by the occupants) will be a function of the construction details of the walls, floors and their junctions.
      http://irc.nrc-cnrc.gc.ca/fulltext/rr168
      Direct link:
      http://irc.nrc-cnrc.gc.ca/fulltext/rr168/rr168.pdf
E-A-R Technical White Papers
Copyright: Normal Copyright rules apply as defined by Naional and International Laws.
Our engineers are noise control experts. Our customers probably are not. Because of this, much of our product literature is designed to help customers understand their design problems and work with us to solve them.
http://www.earsc.com/HOME/engineering/T ... asp?SID=11
The related documents relate to the understanding of floating floors.
  1. The Basics of Vibration Isolation Using Elastomeric Materials
    1. How damped elastomers can be used to reduce transmission of structureborne vibration.
      By Peter A. Masterson - Senior Applications Engineer - E-A-R Specialty Composites
      This document is direct related with the design and calculation of a floating floors.
      The explained principles and physics are applicable on all resilient materials, whether this is rigid glassfiber or rockwool, competitive materials and partly materials as rubber, EPDM, and so on.
      The latter however work mainly on deformation, not compressibility of the volume.
      Possible differences with other materials are to be assigned to individual material properties

      HTML version
      http://www.earsc.com/HOME/engineering/T ... asp?SID=61
      Direct download pdf version
      http://www.earsc.com/pdfs/engineering/B ... lation.pdf
    2. Understanding Damping Techniques for Noise and Vibration Control
      by Jennifer Renninger - Applications Engineer - E-A-R Specialty Composites
      HTML version
      http://www.earsc.com/HOME/engineering/T ... asp?SID=62
      Direct download pdf version
      http://www.earsc.com/pdfs/engineering/u ... amping.pdf
    3. Designing for Quiet, Vibration-Free Operation
      by Neil Plesner - Market Development Manager - E-A-R Specialty Composites
      HTML version
      http://www.earsc.com/HOME/engineering/T ... sp?SID=145
      Direct download pdf version
      http://www.earsc.com/pdfs/engineering/d ... htpper.pdf
    4. Dynamic Data Predict Response of Elastomeric Isolators
      by Bruce Chew - Senior Applications Engineer - E-A-R Specialty Composites
      HTML version
      http://www.earsc.com/HOME/engineering/T ... sp?SID=142
      Direct download pdf version
      http://www.earsc.com/pdfs/engineering/dynamic.pdf
    5. Constrained-Layer Systems Provide Weight-Efficient, High- Level Damping
      by Brian Joyal - Program Engineer - E-A-R Specialty Composites
      HTML version
      http://www.earsc.com/HOME/engineering/T ... asp?SID=60
      Direct download pdf version
      http://www.earsc.com/pdfs/engineering/CLD.pdf
    6. The Four-Fold Method of Noise and Vibration Control
      by David Frankovich - Senior Applications Engineer - E-A-R Specialty Composites
      HTML version
      http://www.earsc.com/HOME/engineering/T ... asp?SID=59
      Direct download pdf version
      http://www.earsc.com/pdfs/engineering/4foldWP.pdf



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The following links are still to be checked, since they also include overlapping data.

Dealing with flanking transmission in wood framed construction
Quirt, J.D.; Nightingale, T.R.; Halliwell, R.E.
NRCC-46629
http://irc.nrc-cnrc.gc.ca/fulltext/nrcc46629/
http://irc.nrc-cnrc.gc.ca/fulltext/nrcc ... c46629.pdf            506 kB

Flanking transmission in wood framed multifamily dwellings
Halliwell, R.E.; Quirt, J.D.; Nightingale, T.R.T.
NRCC-45723
http://irc.nrc-cnrc.gc.ca/fulltext/nrcc45723/
http://irc.nrc-cnrc.gc.ca/irc/fulltext/ ... c45723.pdf

Using floor toppings to control flanking transmission
Nightingale, T.R.T.; Halliwell, R.E.; Quirt, J.D.
NRCC-45724
http://irc.nrc-cnrc.gc.ca/fulltext/nrcc45724/
http://irc.nrc-cnrc.gc.ca/irc/fulltext/ ... c45724.pdf

Effectiveness of toppings to control flanking transmission in lightweight framed floors
Nightingale, T.R.T.; Halliwell, R.E.; Quirt, J.D.
NRCC-45673
http://irc.nrc-cnrc.gc.ca/fulltext/nrcc45673/
http://irc.nrc-cnrc.gc.ca/irc/fulltext/ ... c45673.pdf    284kB

Vibration response of floors and the effectiveness of toppings to control flanking transmission
Nightingale, T.R.T.; Halliwell, R.E.; Quirt, J.D.
NRCC-45377
http://irc.nrc-cnrc.gc.ca/fulltext/nrcc45377/
http://irc.nrc-cnrc.gc.ca/irc/fulltext/ ... c45377.pdf  320 kB

Construction details affecting flanking transmission in wood framed multifamily dwellings
Halliwell, R.E.; Quirt, J.D.; Nightingale, T.R.T.
NRCC-44707
http://irc.nrc-cnrc.gc.ca/fulltext/nrcc44707/
http://irc.nrc-cnrc.gc.ca/irc/fulltext/ ... c44707.pdf 417 kB

Sound transmission through gypsum board walls - effect of shear membranes and framing details
Nightingale, T.R.T.; Halliwell, R.E.; Quirt, J.D.
NRCC-45018
http://irc.nrc-cnrc.gc.ca/fulltext/nrcc45018/
http://irc.nrc-cnrc.gc.ca/irc/fulltext/ ... c45018.pdf


Flanking sound transmission in wood-framed construction
Nightingale, T.R.T.; Halliwell, R.E.; Quirt, J.D.
NRCC-45019
http://irc.nrc-cnrc.gc.ca/fulltext/nrcc45019/
http://irc.nrc-cnrc.gc.ca/irc/fulltext/ ... c45019.pdf
A version of this document is published in / Une version de ce document se trouve dans :
Canadian Acoustics, v. 29, no. 3, Sept. 2001, pp. 58-59

Preliminary results of a systematic study of sound transmission through a cavity wall assembly
Nightingale, T.R.T.; Quirt, J.D.
NRCC-43676
A version of this document is published in / Une version de ce document se trouve dans :
Canadian Acoustics, v. 27, no. 3, Sept. 1999, pp. 58-59


http://irc.nrc-cnrc.gc.ca/ctus/ctu27e.pdf
Nightingale, T.R.T.; Quirt, J.D.; Sultan, M.A. Effect of Electrical Outlet Boxes on Sound Isolation of Gypsum Board Walls, Construction Technology Update, 27, pp. 4, May 01, 1999

Effect of electrical outlet boxes on sound insulation of a cavity wall
Nightingale, T.R.T.; Quirt, J.D.
NRCC-41912
A version of this document is published in / Une version de ce document se trouve dans :
Journal of the Acoustical Society of America, v. 104, no. 1, July 1998, pp. 266-274
http://irc.nrc-cnrc.gc.ca/fulltext/nrcc41912/
http://irc.nrc-cnrc.gc.ca/irc/fulltext/ ... c41912.pdf  454 kB

http://irc.nrc-cnrc.gc.ca/ctus/ctu01e.pdf
Warnock, A.C.C.; Quirt, J.D. Control of sound transmission through gypsum board walls, Construction Technology Update, 1, Jan., pp. 6, January 01, 1997
NRCC-40624

Nightingale, T.R.T.; Quirt, J.D. "Degradation of wood stud wall sound isolation by electrical boxes," Canadian Acoustics/Acoustique Canadienne, 23, (3), Acoustics Week in Canada (Quebec City, Quebec, 10/25/1995), pp. 55-56, September 01, 1995 (Presented at Acoustics Week in Canada, held Oct. 2-5, 1995 in Quebec City, Quebec)
(NRCC-39278)

http://irc.nrc-cnrc.gc.ca/fulltext/nrcc39272.pdf
Warnock, A.C.C.; Quirt, J.D. "Sound transmission through gypsum board walls," 23, (3), Acoustics Week in Canada (Quebec City, Quebec, 10/25/1995), pp. 47-48, September 01, 1995
(NRCC-39272)

Warnock, A.C.C.; Quirt, J.D. "Sound transmission class ratings for gypsum board walls," Construction Canada, 37, (1), pp. 25-26, 28-29, 32, January, 1995
(NRCC-38800)

http://irc.nrc-cnrc.gc.ca/fulltext/nrcc38990.pdf
Warnock, A.C.C.; Quirt, J.D. "Sound transmission through gypsum board walls," INTER-NOISE 95 (Newport Beach, CA., U.S.A. 7/10/1995), pp. 1-4, 1995
(NRCC-38990)

Warnock, A.C.C.; Quirt, J.D. "Noise control in buildings," Noise Control in Buildings : A Practical Guide for Architects and Engineers, (Chapter 10), pp. 10.1 - 10.26, 1993 (ISBN: 0070268878)
(NRCC-36950) (IRC-P-3496)

Warnock, A.C.C.; Quirt, J.D. "Airborne sound insulation," Noise Control in Buildings : A Practical Guide for Architects and Engineers, (Chapter 5), pp. 5.1 - 5.77, 1993 (ISBN: 0070268878)
(NRCC-36946) (IRC-P-3492)

Halliwell, R.E.; Quirt, J.D.; Warnock, A.C.C. "Design and commissioning of a new floor sound transmission facility," 2, Inter-noise '93 - Proceedings of the International Congress on Noise Control Engineering : People Versus Noise (Leuven, Belgium, 8/24/1993), pp. 995-998, 1993 (ISBN: 9052040249)
(NRCC-36037) (IRC-P-3284)

http://irc.nrc-cnrc.gc.ca/practice/noi3_E.html
Quirt, J.D. "Noise from ventilation fans," Construction Practice : Selected Applications in Construction Technology, Section 5, pp. 1-2, 1993 (Reprinted in Construction Practice : Selected Applications in Construction Technology Section 5 (NRCC- 35475) Aussi disponsible en français: Le bruit des ventilateurs) (ISBN: 0660149281)

Quirt, J.D. "Assessing the noise from ventilation fans," Building Performance News, (12), pp. 2, October, 1991 (Aussi disponible en français: Évaluation du bruit des ventilateurs)
(NRCC-35210) (IRC-P-3078)

Quirt, J.D. "Sound emission from residential ventilation fans," 1, Proceedings of Inter-noise 91 : International Conference on Noise Control Engineering : The Costs of Noise (Sydney, Australia, 12/2/1991), Sydney, Australia : Australian Acoustical Society, pp. 79-82, 1991 (Abstract paper also appeared in Canadian Acoustics, v. 18, no. 3, July 1990, p. 81-82.) (ISBN: 0909882126)
(NRCC-35054) (IRC-P-2087)

Halliwell, R.E.; Quirt, J.D. "Controlling inter-office sound transmission through a suspended ceiling," Journal of the Acoustical Society of America, 90(3), pp. 1146-1153, 1991
(NRCC-33097) (IRC-P-1710)

Warnock, A.C.C.; Quirt, J.D.; Harris, C.M. , ed. "Noise control in buildings," Handbook of Acoustical Measurements and Noise Control, Chapter 33, New York : McGraw-Hill, 1991
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