Acoustic standing waves are termed modes with numbered order by frequency
Evidence
Standing waves in an acoustic context are often called the modes of a given system; the lowest-frequency standing wave is known as the “first-order mode,” and the multiples of this are higher-order modes. So the third-order mode of a system is the third lowest frequency standing wave pattern that can occur in it. — David M. Howard, Jamie Angus, Acoustics and Psychoacoustics, 413
Categorization
Category: Definitional Content
- DEFINE: Clarifies the standard terminology mapping standing waves to numbered modes, foundational for acoustics vocabulary.
Related
- Low frequencies cannot form diffuse fields because boundaries create standing waves (similarity 0.83)
- Standing waves are a subclass of the more general phenomenon called resonant modes (similarity 0.83)
- Standing waves occur at all multiples of the lowest resonant frequency (similarity 0.82)