People Can Detect Sounds Ranging in Frequency From _____ to _____.
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Purves D, Augustine GJ, Fitzpatrick D, et al., editors. Neuroscience. second edition. Sunderland (MA): Sinauer Assembly; 2001.
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Neuroscience. 2nd edition.
Evidence details
The Audible Spectrum
Humans can observe sounds in a frequency range from virtually twenty Hz to 20 kHz. (Human infants tin actually hear frequencies slightly higher than 20 kHz, just lose some high-frequency sensitivity equally they mature; the upper limit in boilerplate adults is often closer to 15–17 kHz.) Not all mammalian species are sensitive to the same range of frequencies. Most small mammals are sensitive to very high frequencies, simply not to low frequencies. For instance, some species of bats are sensitive to tones as high as 200 kHz, simply their lower limit is around twenty kHz—the upper limit for young people with normal hearing. I reason for these differences is that small-scale objects, including the auditory structures of these small mammals, are improve resonators for high frequencies, whereas large objects are better for low frequencies (which also explains why the violin has a higher pitch than the cello).
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Copyright © 2001, Sinauer Associates, Inc.
Bookshelf ID: NBK10924
Source: https://www.ncbi.nlm.nih.gov/books/NBK10924/
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