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RE: Infrasound: The Silent Creepy Sound of the Horror Movies
My first time of coming across infrasound. I now understand why teachers find it difficult to detect student murmuring in class and yet fellow student knows but cover up.As we grow up, the less we hear sounds at low frequency. Thanks @greenrun.
They may hear murmur, just that some older adults can't detect frequency higher than 17kHz.
Thanks @greenrun
You are welcome.