Bioacoustics & Ecoacoustics Glossary

normal mode

https://glossary.acousti.cloud/normal_mode

en

"a characteristic distribution of vibration amplitudes, among the parts of a system each part of which is vibrating freely at the same frequency. Complex free vibrations are combinations of these simple normal modes." [1]

Reference: [1] Broughton WB. Glossarial Index. In: Acoustic Behavior of Animals. Elsevier; 1963.