ASTM WK71681

    New Guide for reproducible low-frequency acoustical measurements in reverberation rooms

    (What is a Work Item?)

    Developed by Subcommittee: E33.10 | Committee E33 | Contact Staff Manager



    WK71681

    1. Scope

    The scope of the standard is to define a new guide for making reproducible measurements in low-frequency one-third octave bands (OTO) in reverberation rooms where, based on the room dimensions, the sound field is not modally dense. This standard can be applied while testing floor-ceiling assemblies for the Impact Insulation Class (IIC) test (E492) and can be a guideline to conduct tests for the low-frequency IIC rating (LIIC), which is under progress with the committee at the moment.


    Keywords

    low frequency; reverberation; modally dense sound field

    Rationale

    In most of the reverberation rooms used for sound measurement today, the sound field is not modally dense at the some of the low-frequency OTO bands where we make our measurements. Due to this, the lab-to-lab reproducibility of these test methods is poor. With the proposed method, the low-frequency measurements can be made reproducible.

    The title and scope are in draft form and are under development within this ASTM Committee.

    Citing ASTM Standards
    Back to Top
    Work Item Status

    Date Initiated:
    01-30-2020

    Technical Contact:
    Sunit Girdhar

    Status:
    Draft Under Development