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    Acoustic Guide

    Speech Privacy
    The next table shows you how these numbers relate to what you might hear, or not want to hear, between two rooms in an office environment.
    Weighted sound reduction index
    Speech Privacy Level
    25 dB
    Normal speech can be overheard
    30 dB
    Loud speech can be heard clearly
    35 dB
    Loud speech can be distinguished under normal conditions
    40 dB
    Loud speech can be heard but not distinguished
    45 dB
    Loud speech can be heard faintly but not distinguished
    >50 dB
    Loud speech can only be heard faintly with great difficulty

    For a full breakdown of the acoustic ratings our different systems can achieve, please download the full acoustic guide below.