Wind and rustling leaves are a major obstacle to recording biophonies

Evidence

The dominant source of pressure fluctuation at a microphone is represented by the intrinsic turbulence in the flow (Morgan and Raspet 1992). The noise produced by wind is a problem for collecting biophonies but on the other hand is important information on environmental dynamics. Rustling leaves can be an important cause of background noise over a wide range of frequencies. — Almo Farina, Soundscape Ecology, 292

Categorization

• XREF: Wind-as-masker connects to the reader’s two acoustic papers (Aylor, Embleton) and the general problem of separating anthrophony/anthropogenic noise from target signals. — connects to: Forest edges are sonic discontinuities segregating wind noise from animal sounds. — Almo Farina, Soundscape Ecology: Principles,…, 357; Geophony from wind and anthrophony from traffic both suppress animal acoustic communication — Almo Farina, Soundscape Ecology: Principles,…, 127; Background noise may prevent us from hearing an otherwise audible forest sound — Gordon Hempton, John Grossmann, One Square Inch of Silence- One Man’s…, 1010 (+5 more)
• DEFINE: Biophony is named here as the class of animal-produced sounds that wind noise contaminates.

Broader Connections

• Geophony from wind and anthrophony from traffic both suppress animal acoustic communication #corroborates (0.88) — Almo Farina, Soundscape Ecology, 127
• Forest edges are sonic discontinuities segregating wind noise from animal sounds. #qualifies (0.85) — Almo Farina, Soundscape Ecology, 357
• Background noise may prevent us from hearing an otherwise audible forest sound #exemplifies (0.80) — Gordon Hempton, John Grossmann, One Square Inch of Silence- One Man’s…, 1010
• Vegetation substrate type shapes the spectral character of wind noise #expands (0.78) — Almo Farina, Soundscape Ecology, 1255
• Wind speed gradients, not wind itself, refract sound and break reciprocity #qualifies (0.75)
• Natural sounds like wind and rain are recognized through their statistical patterns #corroborates (0.72) — Dijk, Pim van, Physiology, Psychoacoustics and…, 3280
• Thick shrubs barely block noise because they act as a slower continuum #expands (0.72)