Folded horn to capture very low freqs

Discussion in 'Ask Anthony Wellington [archive]' started by Piona, Feb 17, 2016.


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  1. Piona

    Piona

    Feb 17, 2016
    Hi,
    I am making a application that listening to human body sounds.
    The sounds are in a bass range bellow 150Hz (20Hz-15Hz)
    I am using a horn applied to the skin (like a wood fetal fetoscope to pregnants) to capture them
    I need to decrease significant the size of it ( 23 cm height) and I thought about folding it.
    Is there some limitation or "rules" to folding horns?

    Thanks!
    Anna