Results 31 to 40 of about 7,349 (202)

Reverberant Sound Field Equalisation for an Enhanced Stereo Playback Experience

open access: yesProceedings of the 10th Convention of the European Acoustics Association Forum Acusticum 2023, 2022
The topic of room equalisation has been at the forefront of research and product development for many years, with the aim of increasing the playback quality of loudspeakers in reverberant rooms. Traditional room equalisation systems comprise of a number of filters that when applied to the primary loudspeakers, additional room colouration is compensated
Brooks-Park, J., Van De Par, S.
openaire   +2 more sources

Repellence Effect of the New Sound for Underwater Speaker of Hydrofoil [PDF]

open access: yesTransNav, 2015
In order to prevent hydrofoil colliding with cetaceans, the underwater speaker (UWS) has been installed to repel cetaceans. Yamada et al. (2012) analyzed and devised the UWS sound as it fits the cetaceans' acoustic properties to prevent the collision ...
Tatsunori Nakashima   +12 more
doaj   +1 more source

Alarm Calling in Plateau Pika (Ochotona curzoniae): Evidence from Field Observations and Simulated Predator and Playback Experiments

open access: yesAnimals, 2023
Acoustic communication plays a vital role in passing or sharing information between individuals. Identifying the biological meaning of vocal signals is crucial in understanding the survival strategies of animals.
Meina Ma   +5 more
doaj   +1 more source

Food Calls in Common Marmosets, Callithrix jacchus, and Evidence That One Is Functionally Referential

open access: yesAnimals, 2018
We studied three calls of common marmosets, Callithrix jacchus, elicited in the context of food. Call A, but not B or C, had been described previously as a food call. We presented insects (live mealworms or crickets) and fruit (banana or blueberries) and
Lesley J. Rogers   +2 more
doaj   +1 more source

Two novel vocalizations are used by veeries (Catharus fuscescens) during agonistic interactions.

open access: yesPLoS ONE, 2015
Avian vocalizations are common examples of the complex signals used by animals to negotiate during agonistic interactions. In this study, we used two playback experiments to identify agonistic signals in a songbird species with several acoustically ...
Kara L Belinsky   +2 more
doaj   +1 more source

Structural-functional characteristics of two song types in Phylloscopus humei (Phylloscopidae)

open access: yesNature Conservation Research: Заповедная наука, 2023
Several songbird species use two singing modes, which are functionally different. The first mode is preferentially used at the beginning of the breeding cycle, and serves to attract females, while the second mode is used later in the season as well as ...
Svetlana G. Meshcheryagina   +1 more
doaj   +1 more source

Social Disruption Impairs Predatory Threat Assessment in African Elephants

open access: yesAnimals, 2022
The transmission of reliable information between individuals is crucial for group-living animals. This is particularly the case for cognitively advanced mammals with overlapping generations that acquire detailed social and ecological knowledge over long ...
Graeme Shannon   +4 more
doaj   +1 more source

Directional speakers as a tool for animal vocal communication studies

open access: yesRoyal Society Open Science, 2023
Audio playbacks are a common experimental tool in vocal communication research. However, low directionality of sound makes it hard to control the audience exposed to the stimuli.
Lily Johnson-Ulrich   +5 more
doaj   +1 more source

Evaluation of the visual signal in playback by territorial responses of nuthatches

open access: yesAvian Research
A playback experiment is a well-established method for behavior research, especially in the study of the territorial responses of songbirds. Birds obtain information from multimodal signals, whereas only acoustic signals are provided in traditional ...
Miao Tian, Junyang Feng, Canwei Xia
doaj   +1 more source

Mutual mother‐pup acoustic identification in Asian particolored bats

open access: yesEcology and Evolution, 2022
In many vertebrates, vocal communication is crucial in parent–offspring interactions, and parents are often able to discriminate between the calls of their own and others' offspring.
Xiao Tan   +4 more
doaj   +1 more source

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