Glossary beginning with N

Click one of the letters above to go to the page of all terms beginning with that letter.


near field

"The area less than one wavelength from a sound source. In this area pressure and particle velocity are out of phase and sound measurements are unpredictable." [1]


noise pollution

"Noise pollution refers to the elevation of natural ambient noise levels due to sound-generating human activities, which may have detrimental consequences for humans and animals alike..." [1]


Normal song

See: Calling song

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Scratchpads developed and conceived by (alphabetical): Ed Baker, Katherine Bouton Alice Heaton Dimitris Koureas, Laurence Livermore, Dave Roberts, Simon Rycroft, Ben Scott, Vince Smith