A new machine learning algorithm can accurately identify fish calls from hydrophone data, enabling efficient analysis of marine environments. The method has implications for understanding changes in ocean conditions and coral reef health.
Researchers at University of Rochester Medical Center found that the brain processes attended and unattended speech differently, converting attended speech into linguistic units for understanding. This study contributes to developing better wearable devices, such as hearing aids.
Researchers at Skoltech have created an optoacoustic endoscopic probe that can analyze atherosclerotic plaques by forcing molecules to sound their presence. The device uses laser light to make biomarkers oscillate, producing ultrasound signals that can be detected by a sensitive microphone.
The Seattle Space Needle renovation incorporated acoustic designs to limit sound transmission, enhancing visitor experience. Acoustic materials and effective reverberant sound control were selected for the observation levels and restaurant.
Ocean predators survive on small, scattered areas of food rather than average concentrations found in the water. Acoustic tools reveal dynamic layered maps of ocean life by interpreting echoes from sound pulses, providing insights into how animals adapt to find and exploit resources.
Researchers at Japan Advanced Institute of Science and Technology create method to estimate five-room acoustic parameters and speech transmission index using a short conversation, with potential applications in monitoring auditoriums during concerts and saving lives through smart speakers
Researchers found that changes in eDNA concentration accurately reflect movement of creatures between the twilight zone and surface. The study provides clues about species diversity, distribution, and migration patterns using genetic material shed by marine creatures.
Researchers developed an attention-based deep neural network to detect multiple ship targets, exceeding conventional networks' performance. The model focused on inherent features of the two ships simultaneously, outperforming traditional approaches.
Researchers have proposed a wearable, flexible scanner to enable patients to move naturally during brain scans. The technology uses photoacoustic imaging to visualize the cerebral cortex without the need for sedation or confined spaces.
Researchers developed a new, accurate method to detect North Atlantic Right Whale up-calls using Multimodal Deep Learning algorithms. The technology outperformed conventional methods in detecting up-calls, non-up-calls, and false alarms.
Researchers used MEG to measure brain activity while participants listened to simultaneous math equations and sentences, finding separate networks for each. The parietal lobe processed math and the temporal lobe processed language, with activity tracking every word and symbol.
Researchers used EEG to measure brain activity while musicians listened to or imagined Bach piano melodies. Brain activity during imagined music had the opposite polarity of actual listening, indicating prediction-driven responses. The study found that the brain continues to respond to music even when none is playing.
Andrea Alù, founding director of Photonics Initiative at CUNY ASRC, received the world's largest unrestricted prize for early-career scientists. His research discoveries in materials science and physics have brought about advances in electromagnetics, nano-optics, and acoustics with potential applications in various fields.
The study presents a phononic crystal that enables robust topological states at three dimensions, allowing for diverse wave steering applications. The researchers demonstrated the ability to engineer negative refraction of sound waves and utilize topological hinge states as transport channels.
A team of researchers has developed an AI system that can detect COVID-19 through automatic cough analysis. The system uses spectrogram features and demonstrates improved accuracy when incorporating gender information, which is found to be a significant factor in distinguishing between male and female coughs.
Researchers discover moths have evolved acoustic metamaterials on their wings to absorb ultrasound, outsmarting bats. This adaptation decreases echo return and enhances insect survival, with scales tuned to different frequencies forming a broadband absorption array.
Researchers develop Composite Urban Quietness Index to measure sound diversity of quietness, aiming to provide a new understanding of comfortable quiet. The study reveals that high-intensity sound and silent acoustic environments can cause stress, highlighting the need for quantifiable characteristics of quietness.
Researchers have developed a deep-learning model that can track changes in speech coordination features to detect depression. The app aims to provide early intervention before severe depression sets in, potentially saving lives.
The Acoustical Society of America will host virtual press conferences during the 180th Meeting, focusing on research in acoustics. Topics include teaching methods during the pandemic, the acoustic properties of moth wings, and the impact of headphones on younger generations' audio health.
Researchers developed a machine learning technique to detect North Atlantic right whales by listening for their sounds underwater. The technology can remove unwanted noises, increasing the reliability of detecting right whales in adverse conditions, and offers hope for the species' survival and population increase.
Researchers at Sandia National Laboratories have built the world's smallest acoustic amplifier, exceeding previous versions by over 10 times. The device uses sound waves to process radio signals, paving the way for smaller and more sophisticated wireless technology.
Aalto University researchers discovered that wood-based pulp fibers are well-suited for making acoustic materials. These natural fibers have positive environmental impacts compared to traditional acoustic materials, absorbing significant amounts of carbon dioxide from the atmosphere and producing more energy-efficient products.
The Acoustical Society of America will host its 180th meeting online June 8-10, offering new features to ensure an exciting experience for attendees. The meeting will include prerecorded talks, live discussion sessions, panel discussions, and lightning round sessions.
Politecnico di Milano researchers used neural networks to predict the acoustic behavior of violin plates based on geometric parameters. The results showed an accuracy close to 98%, enabling luthiers to design and build violins with optimal sound quality, exploring new designs and materials.
Cancer immunotherapy using acoustics-based therapies has shown synergistic effects, enhancing the autogenous immune response to cancer tissue. Detailed mechanisms of sonopyrolysis-, sonoporation-, and sonoluminescence-based therapy are discussed to demonstrate its potential in cancer treatment.
Researchers at the University of Kansas have described a new species of fanged frog found in the Philippines, which was previously thought to be the same as another species on a neighboring island. The Mindoro Fanged Frog has distinct genetic differences and unique mating calls, setting it apart from its cousin.
Haiyan Wang developed a new approach to creating high-quality thin films used in devices for optics, acoustics, and electronics. The innovation uses a versatile nanocomposite-seeded method to create single-layer films, improving production efficiency.
Researchers created a tool that uses light reflection analysis to identify deepfake photos, achieving 94% accuracy. The technique exploits differences in reflected light patterns between real and fake images, providing a promising solution to combat deepfakes.
Researchers at Shinshu University have developed an acoustic cloaking structure that can operate in both air and water. The design uses finite element analysis to optimize the material selection and acoustics properties, enabling functionality in a wide frequency band.
PhD candidate Rebecca Poulsen designed a speaker system to study brain networks and hearing in baby fish, finding they can hear high-frequency sounds. Whole-brain imaging revealed how larvae process different types of sounds, raising questions about their brain's interpretation.
A team of engineers at the University of Cambridge identified the physical mechanisms responsible for wheezing, a condition affecting up to a quarter of the world's population. They developed a 'tube law' to predict when wheezing occurs and could lead to a cheaper and faster diagnostic for lung disease.
A study by Carlos Duarte and colleagues reveals that human-generated noise pollution is negatively affecting marine animals, altering their behavior, physiology, and survivability. The authors argue that mitigating these impacts through regulation of sources can rapidly decline harmful effects.
Researchers used passive acoustics to study shell-crushing behavior in whitespotted eagle rays, distinguishing prey types based on acoustic features. The study provides critical data for conservation efforts and ecosystem monitoring in Florida's coastal waters.
Researchers at Skidmore College are developing a unique musical scale for each element based on its spectral signature, allowing students to visualize atomic structures through sound. The project has led to collaborations with Carnegie Hall and London-based DJs, creating soundscapes from celestial data.
Researchers found that face masks obstruct facial cues, a crucial aspect of effective communication. The loss of visual information significantly impacts native and non-native speakers' ability to understand each other.
Researchers found that surgical and N95 masks can minimize negative effects on speech intelligibility, making them ideal options for instructors. By wearing these types of masks, educators can help students understand speech more effectively while ensuring their own safety.
A new system called GLINDA allows researchers to capture the unique sound signature of a tornado, improving understanding of its behavior and potential impact on false alarm rates. By measuring infrasound at close range, scientists can gain valuable insights into tornado production and reduce the number of deaths caused by these deadly...
In 2D simulations, researchers found that the pseudo-turbulence relationship changes within larger-scale flows in less viscous fluids. The team discovered an inverse energy cascade and a different mathematical relationship between flow energy and frequency.
A Cornell University research team will use acoustic technology to monitor and manage soil-dwelling pests, preventing damage from predators. The project aims to provide turfgrass managers with greater knowledge and decision-making power about pest distributions and management strategies.
The team's 'virtual ANC headphone' uses laser-based technology to eliminate the need for users to wear head/ear phones or buds. It significantly reduces ambient noise in both open and enclosed spaces, decreasing distractions and improving work/rest ease.
Researchers from the University of Oldenburg are using virtual reality to better understand auditory perception, particularly in noisy environments. They aim to clarify how complicated processes such as perception, attention, and memory can be investigated using new interactive VR methods.
Researchers discovered the precise construction of moths wings that enable extraordinary ultrasound-absorptive properties, creating a resonant absorber 100 times thinner than sound wavelength. This breakthrough inspires the design of ultra-thin sound absorbers for homes and offices.
The Acoustical Society of America will hold its 179th meeting entirely online from December 7-11, bringing together interdisciplinary groups of scientists to discuss their latest research. The conference includes sessions on COVID-19, sound and smell, and more.
Two studies by Aalto University show that minor sound fluctuations make identifying concert halls difficult. The research highlights the importance of considering both acoustic parameters and musical timbre in understanding concert hall acoustics.
A laboratory study replicates common restaurant noise levels and shows that even 'normal' background noise can be unpleasant to diners. The study suggests noise management strategies, including quiet dining areas for older and noise-sensitive individuals, to improve dining experiences.
Researchers found vessel traffic and whale vocalizations contribute to ambient sound, with fluctuations by month and seasonal peaks. The study establishes a baseline for understanding the impact of human-made noise on the sanctuary's ecosystem.
A recent study suggests that population density plays a crucial role in innovation, with cities producing unconventional patents and suburbs producing conventional ones. The research found that large innovative companies tend to perform their research in suburban office parks, while urban cores facilitate interactions between researche...
Scientists have experimentally realized amorphous photonic topological insulators, which exhibit robust topological edge states despite lack of periodic atomic lattices. The discovery opens up new avenues for realizing non-periodic photonic topological materials for novel photonic devices.
Researchers created a photonic Floquet topological insulator in a periodically driven fractal lattice, exhibiting topological edge states with real-space Chern number 1. The simulations show wavepackets can propagate along the outer and inner edges without penetration or backscattering.
Researchers have created an optical switch that can direct high-frequency gamma radiation by switching the acoustic field. This effect demonstrates controlled transparency of a resonant medium for gamma radiation, which may be useful for controlling generated radiation in modern synchrotron sources and X-ray lasers.
Chia-Ching Lin, a graduate student at UTA, has won the Leo Beranek Student Medal for Excellence in Noise Control Engineering. His research focused on gear noise and vibration control in automotive rear axle systems.
A study found that animals who try to sound 'bigger' are often skilled sound learners. Researchers analyzed the sounds and body size of 164 mammals and discovered that those who fake their size are frequently good at learning new sounds. This discovery may provide insight into human speech evolution.
Dr. Ying-Tsong Lin, the 12th person in history to visit Challenger Deep, is an acoustic scientist studying sound propagation in the ocean. His research aims to improve acoustic communication and geo-location at extreme depths.
A Cornell University team has discovered a way to control electron spin transitions using acoustic waves, eliminating the need for magnetic fields. This breakthrough enables the development of smaller, more power-efficient acoustic sensors for navigation technology and other applications.
Scientists from the U.S. Army Combat Capabilities Development Command's Army Research Laboratory have improved distributed algorithms for multi-agent coordination, enabling better situational awareness and communication capabilities for Soldiers in limited bandwidth scenarios.
A research team from the University of Göttingen has successfully harnessed the 'whispering gallery' effect to control electron beams using light. This breakthrough enables new possibilities for quantum technologies in nanoscale sensing and microscopy.
A pilot study tested the effectiveness of drones in measuring Atlantic bluefin tuna, showing they can capture images of individual fish and schools with high accuracy. The use of drones may supplement traditional fishing methods and provide valuable data for fisheries management.
Researchers created a fast, precise and scalable method for individual nano- and submicron scale manipulation in acoustic fields using megahertz frequencies. The technology isolates submicron particles, enabling sorting, patterning and size-selective capture of nanoscale objects.
The James Webb Space Telescope has achieved a significant milestone by being fully folded and stowed into its launch configuration. The observatory will unfold and stretch itself out in space before making groundbreaking observations of the cosmos.
Researchers propose a scheme to realize selective directional coupling of near-field longitudinal waves based on inherent geometric properties and symmetry analysis. The work enables the creation of Janus and Huygens sources, which selectively couple with one side or two sides of the near-field pattern, respectively.