Add BrightSurf on Google Email

Your voice gives away valuable personal information, so how do you keep that data safe?

Researchers at Aalto University warn that speech technologies can extract valuable personal information, posing risks for insurance premiums, advertising, and harassment. To mitigate this, engineers are developing protective measures, such as separating private info from necessary data transmission and using acoustic technologies to en...

SourceAalto University·JournalProceedings of the IEEE·DateJan 14, 2026

Tiny 3D printer reconstructs tissues during vocal cord surgery

A team of biomechanical engineers and surgeons has developed a 3D-printing soft robot that can accurately deliver hydrogels to the vocal cord surgical site. The device, which is only 2.7 mm in size, can reconstruct tissues removed during surgery and potentially prevent fibrosis and stiffening of the vocal cords.

SourceCell Press·JournalDevice·TypeExperimental study·DateOct 29, 2025

Proboscis monkeys' big noses boost vocal identity

A new study links the size of male proboscis monkeys' noses to their unique vocal characteristics, suggesting a significant impact on individual identity. The findings shed light on the complex interplay between anatomy, acoustics, and social behavior in animals, with potential implications for human communication.

SourceThe University of Osaka·JournalJournal of The Royal Society Interface·TypeComputational simulation/modeling·DateSep 3, 2025

Beyond words

Researchers analyzed massive audio recordings to create a dictionary of short melodies in English-language prosody, assigning functions and meanings. They discovered hundreds of basic patterns with linguistic functions, including conveying attitudes such as curiosity or surprise, and identified syntactic rules governing their order.

SourceWeizmann Institute of Science·JournalProceedings of the National Academy of Sciences·DateApr 22, 2025

It’s not just what you say – it’s also how you say it

A Northwestern University study discovered a region of the brain processes subtle changes in voice pitch, transforming them into meaningful linguistic information that guides human understanding. The findings challenge long-held assumptions about speech perception and have implications for speech rehabilitation, AI-powered voice assist...

SourceNorthwestern University·JournalNature Communications·TypeExperimental study·DateMar 3, 2025

Listening for multiple mental health disorders

Researchers developed a machine learning tool that screens for comorbid depression and anxiety disorders using acoustic voice signals. The study confirmed that a one-minute verbal fluency test can reliably identify subjects with comorbid AD/MDD, who tend to use simpler words and exhibit reduced variability in phonemic word length.

SourceAmerican Institute of Physics·JournalJASA Express Letters·DateFeb 4, 2025

Brits still associate working-class accents with criminal behavior – study warns of bias in the criminal justice system

A recent study published in Frontiers in Communication reveals that people with non-standard accents are more likely to be associated with criminal behaviour, but perceptions vary between accents. The researchers found a significant link between class or status, negative traits, and expected behavior, particularly when it comes to crime.

SourceUniversity of Cambridge·JournalFrontiers in Communication·DateJan 17, 2025

Dogs can recognize familiar speakers

Researchers at Eötvös Loránd University found that dogs can recognize their owners based on pre-recorded speech, demonstrating an ability to discriminate between familiar voices. Dogs performed well in matching the correct owner with their voice, with performance best when hearing their main owner's voice.

SourceEötvös Loránd University·JournalAnimal Behaviour·DateDec 17, 2024

Automatic speech recognition learned to understand people with Parkinson’s disease — by listening to them

Researchers trained an automatic speech recognizer on recordings from people with dysarthria related to Parkinson's disease, achieving a 30% accuracy improvement. The study, led by Mark Hasegawa-Johnson, provides valuable data for improving voice recognition devices.

SourceBeckman Institute for Advanced Science and Technology·JournalJournal of Speech Language and Hearing Research·TypeComputational simulation/modeling·DateSep 27, 2024

‘Baby talk:’ Decoding how children’s vocal and cognitive cues sway adults

Researchers found that adults prioritize cognitive cues over vocal signals when evaluating a child's intelligence or negative emotions, while vocal cues dominate for assessing happiness or helplessness. This study provides insights into the complex dynamics of caregiver-child interactions and their evolutionary roots.

SourceFlorida Atlantic University·JournalEvolution and Human Behavior·TypeObservational study·DateAug 6, 2024

Major trial looks at most effective speech therapy for people with Parkinson’s disease

A major clinical trial led by the University of Nottingham found that LSVT LOUD was more effective at reducing the impact of voice problems in people with Parkinson's disease compared to no speech and language therapy or NHS delivered therapy. The treatment improved communication skills, enabling participants to go out and socialize wi...

SourceUniversity of Nottingham·JournalThe BMJ·TypeRandomized controlled/clinical trial·DateJul 10, 2024

The "Queen of the Night" does not whistle

A new study by the University of Vienna rejects the idea that opera singers rely on a specialized 'whistle' voice register to produce high-pitched notes. Instead, researchers found that vocal folds vibrate at extremely fast rates to create these sounds, similar to speech and other forms of singing.

SourceUniversity of Vienna·JournalScientific Reports·DateJun 18, 2024

Should celebrities and influencers turn off their social media comments? A new study suggests they are less persuasive and likable when they do

Influencers who disable social media comments are perceived as less sincere, less receptive to consumer feedback, and incur professional consequences. This behavior can undermine their ability to connect with followers, even when the displayed comments are mostly negative in nature.

SourceAmerican Marketing Association·JournalJournal of Marketing·DateJun 11, 2024

Best way to bust deepfakes? Use AI to find real signs of life, say Klick Labs scientists

Researchers at Klick Labs developed an algorithm to detect deepfakes with 80% accuracy by analyzing speech pause patterns, offering a solution to the growing problem of AI-generated content. The study's findings suggest that vocal biomarkers can distinguish between real and fake voices, providing a novel approach to flagging deepfakes.

SourceKlick Applied Sciences·JournalJMIR Biomedical Engineering·TypeData/statistical analysis·DateMar 21, 2024

Machine learning tools can predict emotion in voices in just over a second

Researchers developed machine learning models that can recognize emotions in voice recordings as short as 1.5 seconds with high accuracy comparable to humans. The study used three ML models and achieved an accuracy of over 90%, with potential applications in therapy, interpersonal communication technology and more.

SourceFrontiers·JournalFrontiers in Psychology·TypeComputational simulation/modeling·DateMar 20, 2024

Neurobiology: How bats distinguish different sounds

Scientists have discovered that the bat brainstem processes echolocation and communication calls differently, with a stronger response to less frequent calls due to better neural synchronization. The findings may also be relevant to medical applications in humans, such as understanding diseases like ADHD or schizophrenia.

SourceGoethe University Frankfurt·JournalJNeurosci·TypeExperimental study·DateFeb 23, 2024

Low voice pitch increases standing among strangers

A cross-cultural study found that lower voice pitch makes women and men sound more attractive for long-term relationships and more formidable among other men. Lower male voice pitch also confers formidability and high social status in societies with higher relational mobility, suggesting evolutionary origins.

SourcePenn State·JournalPsychological Science·DateFeb 8, 2024

Smartphones and smart speakers may be able to detect alcohol intoxication by analyzing voice patterns: Study

Researchers found that changes in voice patterns predicted alcohol intoxication with 98% accuracy. The study suggests that smartphones and smart speakers could be used to deliver 'just-in-time interventions' to prevent injuries and deaths from motor vehicle accidents.

SourceJournal of Studies on Alcohol and Drugs·JournalJournal of Studies on Alcohol and Drugs·TypeExperimental study·DateNov 9, 2023

Fear of humans pervades the South African savanna

A recent study found that animals in the Greater Kruger National Park react with alarm to hearing human voices, fleeing waterholes and abandoning their habitat. The researchers used custom sound systems to compare the fear response of mammals to humans versus lions.

SourceCell Press·JournalCurrent Biology·TypeObservational study·DateOct 5, 2023

Diagnosis of voice condition from call audio

Researchers developed a new method to estimate vocal cord vibrations pitch from call audio, leading to more accurate dysarthria diagnoses in telemedicine. The method integrates feature quantities extracted from amplitude and phase spectra, demonstrating robustness against background noise.

SourceToyohashi University of Technology (TUT)·JournalIEEE/ACM Transactions on Audio Speech and Language Processing·TypeExperimental study·DateAug 17, 2023

Brain recordings capture musicality of speech — with help from Pink Floyd

Neuroscientists at UC Berkeley have successfully reconstructed a recognizable song from brain recordings, capturing the electrical activity of brain regions tuned to music attributes. This breakthrough could enable future brain implants with prosodic content, improving communication for patients with speech disorders.

SourceUniversity of California - Berkeley·JournalPLOS Biology·TypeExperimental study·DateAug 15, 2023

Can conventional speech therapy combined with singing address voice problems in individuals with Parkinson’s disease?

A new study found that combining conventional speech therapy with singing can improve voice problems in individuals with Parkinson's disease. The tele-rehabilitation program showed significant improvements in voice intensity and Voice Handicap Index scores, suggesting a more effective treatment approach.

SourceWiley·JournalInternational Journal of Language & Communication Disorders·DateJun 7, 2023

The invention of Lithuanian scientists – AI will become an assistant in voice analysis

Researchers from Kaunas University of Technology and Lithuanian University of Health Sciences developed an AI-based system to evaluate the 'substitute voice' of laryngectomy patients, allowing for faster detection of pathologies. The Acoustic Substitution Voice Index (ASVI) uses acoustic parameters and artificial intelligence methods t...

SourceKaunas University of Technology·JournalApplied Sciences·TypeComputational simulation/modeling·DateNov 29, 2022

Simplified voice box enriches human speech

Researchers found that human larynx evolution led to stable voices and controlled pitch without adding new structures. This simplification allowed for the development of complex vocal information, enabling humans to communicate effectively.

SourceKyoto University·JournalScience·TypeExperimental study·DateAug 11, 2022

How do I sound? Do you like my voice?

A study by the University of Cincinnati suggests that transgender and gender diverse people can benefit from better-designed smartphone apps offering voice and communication training software. The app features identified as most critical include feedback, accountability, automated goal setting, and non-interactive elements like videos ...

SourceUniversity of Cincinnati·JournalJournal of Voice·TypeSurvey·DateApr 13, 2022