Hubbry Logo
logo
Acoustic ecology
Community hub

Acoustic ecology

logo
0 subscribers
Be the first to start a discussion here.
Be the first to start a discussion here.
Contribute something to knowledge base
Hub AI

Acoustic ecology AI simulator

(@Acoustic ecology_simulator)

Acoustic ecology

Acoustic ecology, sometimes called ecoacoustics or soundscape studies, is a discipline studying the relationship, mediated through sound, between human beings and their environment. Acoustic ecology studies started in the late 1960s with R. Murray Schafer a musician, composer and former professor of communication studies at Simon Fraser University (Vancouver, British Columbia, Canada) with the help of his team there as part of the World Soundscape Project. The original WSP team included Barry Truax and Hildegard Westerkamp, Bruce Davies and Peter Huse, among others. The first study produced by the WSP was titled The Vancouver Soundscape. This innovative study raised the interest of researchers and artists worldwide, creating enormous growth in the field of acoustic ecology. In 1993, the members of the by now large and active international acoustic ecology community formed the World Forum for Acoustic Ecology.

The radio art of Schafer and his colleague, has found expression in many different fields. While most have taken some inspiration from Schafer's writings, in recent years there have also been divergences from the initial ideas. The expanded expressions of acoustic ecology are increasing due to the sonic impacts of road and airport construction that affect the soundscapes in and around cities where the human population is more dense. There has also been a broadening of bioacoustics (the use of sound by animals) to consider the subjective and objective responses of animals to human noise, with ocean noise capturing the most attention. Acoustic ecology can also be informative of changes in the climate or other environmental changes since every day we listen to sounds in the world to identify their source such as bird, car, plane, wind, water. But we don't listen those sounds as a network, a mesh of relationships that form an ecology. Acoustic ecology finds expression in many different fields that characterize a soundscape, which are biophony, geophony, and anthrophony.

Noise is generally a by-product of increased urbanization and development. As our cities became more industrialized, the volume and frequency of anthrophony, man-made noise signals, increased. Noise can alter the acoustic environment of aquatic and terrestrial habitats.

Animal biodiversity has shown to decline because of chronic noise levels in cities and along roadways.[citation needed] Musician and soundscape ecologist Bernie Krause relates biophony to an orchestra, where different groups of animals in an environment make sounds at different levels to avoid overlap or competition in their communication. Manmade noise such as jets flying over a habitat can disrupt the natural order of these sounds, even putting certain species in danger of predators. For example, some frogs synchronize in a way that protects individuals from attracting attention. The noise of a jet can cause the frogs to stop or fall out of sync, temporarily breaking this effect and exposing them to other animals.

On land, animal communication is shaped by physical characteristics of an environment such as distance, range of vision, weather, and surrounding noise. The physical layout of a habitat may impede the spread of soundwaves while air conditions can affect sound quality and speed. Animals can adapt to factors like distance by adjusting the frequency and amplitute of their calls to maximize communication effectiveness. Some species such as the urban great tits have changed the frequency of their calls to adapt. Soundscapes of particular habitats are always evolving because the activities and species that exist in those habitats changes over time.

In terms of evolution, man-made noise is a much more recent phenomenon. Indeed, through investigating collected recordings, ecologists can study ethology of animal acoustic communication, evolution, and development of acoustic behavior, relationships between animal sounds and their environment. However, all those ecological research goals have a precondition that those bioacoustic recordings are well investigated so that the animal species can be accurately recognized. Scientific research has shown that it has potential to change behavior, alter physiology and even restructure animal communities.

Soundscapes are composed of the anthrophony, geophony and biophony of a particular environment. They are specific to location and change over time. Acoustic ecology aims to study the relationship between these things, i.e. the relationship between humans, animals and nature, within these soundscapes. These relationships are delicate and subject to disruption by natural or man-made means.

In his book The Tuning of the World, Schafer used new terms like 'soundmarks' -- a specific community's distinctive sounds—and 'keynotes' -- prevalent but overlooked background sounds such as traffic—to help categorize the different elements of a soundscape.

See all
User Avatar
No comments yet.