Shruthi Raghavendra Ph.D.
Cognitive Neuroscientist | Auditory Researcher | Innovator in Neurotechnology
Hi, I’m Dr. Shruthi Raghavendra, a cognitive neuroscientist, auditory researcher, and passionate advocate for hearing health. My journey began in the lab, decoding how the brain processes sound. But along the way, it became about so much more: empowering people with hearing loss, preventing cognitive decline, and transforming the way we think about hearing care.
With a Ph.D. in Electrical Engineering and a specialization in auditory electrophysiology, I’ve spent several years studying how the brain responds to speech, especially in complex listening environments. I’ve developed EEG-based framework to measure listening effort and perceived sound quality.
Through my research and industry work at places like Starkey Laboratories and Harman International, I’ve seen firsthand how better hearing can change lives. But I’ve also seen the stigma, delays in diagnosis, and the devastating connection between untreated hearing loss and cognitive decline, including dementia. That’s why I’ve made advocacy a core part of my mission.
I believe hearing health is a human right not a luxury. I use my platform to raise awareness, mentor students, and contribute to community efforts like Walk4Hearing, IEEE EMBS, IEEE WEI, and IEEE Young Professionals.
“Together for a World Where Everyone Hears.”
Professional Experience
Harman International
At Harman International, I work as a Senior Audio Research Scientist, focusing on developing cutting-edge audio technologies that integrate neuroscience and signal processing. My work involves analyzing biosignals like EEG and pupillometry to personalize audio experiences, with applications in hearing enhancement, hearing aids, and consumer audio products. I also contribute to algorithm development, user-centered evaluations, and the translation of scientific insights into commercial innovations.
Starkey Laboratories
At Starkey, I interned as a Machine Learning Signal Processing Intern, where I enhanced a legacy dynamic range compression (DRC) algorithm by incorporating an SNR-aware gain strategy to reduce noise pumping artifacts. My work involved algorithm development, MATLAB-based testing, documentation, and designing web-based listening tests to evaluate algorithm performance. I also presented key findings and hearing test results to cross-functional research and engineering heads.
The University of Texas at Dallas
At UT Dallas, I served as a Research Assistant and Teaching Assistant during my Ph.D. In my RA role, I conducted EEG-based auditory neuroscience research, focusing on speech perception, cortical entrainment, and biosignal analysis. As a TA, I supported undergraduate and graduate-level courses in biomedical signal processing and electrophysiology, earning the Best Teaching Assistant Award in 2022 for my dedication and effectiveness in student mentoring and instruction.
Robert Bosch Engineering and Business Solutions Private Limited (RBEI)
At Robert Bosch, I worked as an Associate Software Engineer, where I contributed to the development and validation of embedded automotive software. My responsibilities included software testing, debugging, and ensuring compliance with industry standards. I was recognized with a Certificate of Appreciation for Keeping Commitments, reflecting my reliability and dedication to project deadlines.
PROFESSIONAL SKILLS
Biomedical Signal Processing Techniques
Applied advanced EEG and pupillometry signal processing methods to investigate auditory perception and neural entrainment.
Scientific Publishing and Peer Review
Authored peer-reviewed publications and actively engaged in the academic review process across ICBEB, Trends in Hearing, IEEE BHI etc.
Machine Learning for Biomedical Applications
Developed and optimized machine learning models to enhance speech perception and personalize hearing aid algorithms.
Experimental Research Design
Designed and executed controlled studies using biosignal data to test auditory hypotheses and validate algorithm performance.
Programming and Software Development
Proficient in MATLAB and Python for signal analysis, data visualization, and algorithm prototyping in auditory neuroscience research.
Digital Health Technology Development
Contributed to the development of cognitive and auditory health solutions integrating biosignal feedback and user-driven metrics.
Leadership in Healthcare Innovation
Spearheaded translational research initiatives to bridge cognitive neuroscience and clinical audiology for personalized hearing healthcare.
Data Quality Assurance and Validation
Ensured high data integrity through rigorous preprocessing, artifact rejection, and cross-validation of EEG and behavioral datasets.
Regulatory and Ethical Compliance
Adhered to IRB protocols and ethical guidelines in all human subject research involving EEG and perceptual testing.
PROJECTS
Senior Audio Research Scientist, Harman International | Los Angeles, CA
At Harman, I led R&D at the intersection of neuroscience and audio technology, developing EEG- and pupillometry-based solutions for personalized listening. My work on cortical entrainment helped shape brain-aware audio features, and I created biosignal-driven testing protocols to assess cognitive load and optimize user experience. This role bridged academic research with real-world impact in hearing health and consumer audio innovation. The work contributed to a broader understanding of how cognitive factors influence auditory perception and how technology can be aligned to support more natural and less fatiguing listening experiences
Machine Learning and Signal Processing Intern, Starkey Laboratories | Minneapolis, MN
At Starkey, I enhanced a legacy dynamic range compression (DRC) algorithm by integrating an SNR-aware gain strategy to reduce noise pumping in hearing aids. I designed, implemented, and evaluated the algorithm using subjective listening tests and speech intelligibility metrics, presenting the outcomes to cross-functional teams. This work contributed to improving speech clarity and user satisfaction in hearing aid performance.
Research Assistant | The University of Texas at Dallas | Richardson, TX
Cortical Entrainment and Neuro-Steered Sound Quality: This project leveraged EEG-based cortical entrainment to assess how the brain synchronizes with speech rhythms under different listening conditions. We used entrainment strength as an objective, real-time marker of perceived sound quality, forming the basis for a neuro-steered audio framework. This enabled EEG-guided evaluation of listening difficulty without relying on subjective reports. The insights informed early models for brain-aware speech enhancement, where hearing devices could adapt dynamically to the listener’s cognitive state, enhancing both usability and user experience.
Research Assistant | The University of Texas at Dallas | Richardson, TX
Cross-Frequency Coupling in Speech Processing: This project investigated how different brainwave frequencies interact during speech perception using cross-frequency coupling (CFC), particularly phase-amplitude coupling between low-frequency (delta/theta) and high-frequency (gamma) bands. EEG recordings captured how the brain integrates temporal fine structure (TFS) and envelope cues, revealing a hierarchical encoding mechanism. These neural interactions offered insight into how the brain processes complex speech signals, informing future strategies for biosignal-driven auditory prosthetics and adaptive hearing technologies.
Research Assistant | The University of Texas at Dallas | Richardson, TX
Understanding Fricative Clarity in Hearing-Impaired Speech: This project analyzed how hearing-impaired individuals produce high-frequency fricatives like /s/, /ʃ/, /f/, and /θ/, and how these relate to speech intelligibility. Using acoustic features such as center of gravity and spectral spread, we found clear differences between high- and medium-intelligibility speakers, particularly among hearing aid users. Results suggest that speech production is shaped by amplification type and auditory experience, highlighting the need for more personalized hearing solutions.
Software Engineer | Robert Bosch Engineering and Business Solutions Private Limited | Bengaluru, India
Embedded Software Development for Automotive Systems: At Robert Bosch, I contributed to the development and validation of embedded software for automotive control units. My role focused on software testing, debugging, and compliance with industry standards for safety and performance. I worked with cross-functional engineering teams to ensure robust functionality in real-world automotive environments. My contributions were recognized with a Certificate of Appreciation for Keeping Commitments (2013), reflecting reliability and a commitment to delivery excellence in a fast-paced industrial setting
EDUCATION
Education
The University of Texas at Dallas, Richardson, TX
Doctorate of Philosophy (Ph.D.), Auditory Neuroscience
Visveswaraya Technological University, Belgaum, India
Master of Technology, Digital Communication Engineering
Visveswaraya Technological University, Belgaum, India
Bachelor of Engineering, Electronics and Communications Engineering
Hearing Loss Advocacy
Have a Question About Hearing Loss?Whether you’re navigating hearing loss yourself, supporting a loved one, or curious about the brain’s role in hearing — I’m here to help.
I mentor and speak with students, researchers, caregivers, and professionals around the world.
📅 Book a free 1:1 session with me on ADPList
Let’s connect, learn, and advocate for better hearing health together.
Upcoming Event: Walk With Me to Raise Hearing Loss Awareness Date: May 31, 2025
Location: Long Beach, CA
Join me in Long Beach for a meaningful walk to raise awareness about hearing loss and its impact on cognitive health and quality of life. Let’s walk together, share stories, and advocate for early intervention and inclusive hearing care.
Every step counts — and so does every voice.
If you can’t join in person, you can still support the cause by donating below.
Donate Here https://www.walk4hearing.org/index.cfm?fuseaction=donorDrive.participant&participantID=7756
“Together for a World Where Everyone Hears.”
Have a Question About Hearing Loss?Whether you’re navigating hearing loss yourself, supporting a loved one, or curious about the brain’s role in hearing — I’m here to help.
I mentor and speak with students, researchers, caregivers, and professionals around the world.
📅 Book a free 1:1 session with me on ADPList
Let’s connect, learn, and advocate for better hearing health together.
Upcoming Event: Walk With Me to Raise Hearing Loss Awareness Date: May 31, 2025
Location: Long Beach, CA
Join me in Long Beach for a meaningful walk to raise awareness about hearing loss and its impact on cognitive health and quality of life. Let’s walk together, share stories, and advocate for early intervention and inclusive hearing care.
Every step counts — and so does every voice.
If you can’t join in person, you can still support the cause by donating below.
Donate Here https://www.walk4hearing.org/index.cfm?fuseaction=donorDrive.participant&participantID=7756
“Together for a World Where Everyone Hears.”
Publications
- Cross-frequency coupling in cortical processing of speech
- Analysis of fricatives in speech produced by hearing impaired individuals aided with different assistive hearing devices
- Cortical entrainment to speech produced by cochlear implant users and normal-hearing talkers
- Advances in Methodologies Using EEG to Characterize the Cortical Processing of Speech and Its Perceived Sound Quality
- Cortical entrainment to speech produced by cochlear implant talkers and normal-hearing talkers
- Sibilant production by hearing impaired speakers with different experience of auditory compensation
- Spectrum Sensing For Cognitive Radio Employing Time-Domain Signal Cross Correlation For Vehicular Ad-Hoc Networks
Awards
01
2019
Doctoral Student Aid
Conference on Implantable Auditory Prostheses
02
2016
Best Teaching Assistant Award
The University of Texas at Dallas
03
2016
Doctor of Philosophy (Ph.D.) in Electrical Engineering The University of Texas at Dallas
Awarded for original research in auditory electrophysiology and cognitive neuroscience, with a dissertation titled “Advances in Methodologies Using EEG to Characterize the Cortical Processing of Speech and Its Perceived Sound Quality.”
04
2016
Certificate of Appreciation for Keeping CommitmentsRobert Bosch
Recognized by Robert Bosch Ltd., a globally renowned engineering and technology company, for her outstanding professional commitment and reliability.
Media
"Bridging Cognitive Neuroscience and Hearing Technology: A Woman’s Perspective on Innovation in Hearing Health"My new article published in Hearing Health & Technology Matters !
In this article for Hearing Health & Technology Matters, I explore how EEG and pupillometry can drive brain-aware, personalized hearing solutions—sharing both scientific insights and my perspective as a woman innovator in hearing health.
7 Scary Signs Your Brain May Be Aging Faster Than It Should—And How To Reverse ItExcited to be featured in SheFinds!
Hearing loss isn’t just about sound—it’s deeply tied to brain health. Untreated hearing loss can accelerate brain aging, impacting memory, cognition, and quality of life. Early intervention is key to protecting both hearing and cognitive function. Let’s raise awareness together!
https://www.shefinds.com/collections/brain-aging-faster-signs/
The BestHeadphones For Travel Provide Rich Audio And Peaceful JourneysHonored to be cited as an expert source in Forbes alongside industry leaders!
In a recent article on the Best Headphones for Travel, I shared insights on audio quality, listener preferences, and emerging trends—drawing from my experience as a Senior Audio Research Scientist at Harman International.
https://www.forbes.com/sites/forbes-personal-shopper/article/best-headphones-for-travel/?
Hobby
- Cross-frequency coupling in cortical processing of speech
- Analysis of fricatives in speech produced by hearing impaired individuals aided with different assistive hearing devices
- Cortical entrainment to speech produced by cochlear implant users and normal-hearing talkers
- Advances in Methodologies Using EEG to Characterize the Cortical Processing of Speech and Its Perceived Sound Quality
- Cortical entrainment to speech produced by cochlear implant talkers and normal-hearing talkers
- Sibilant production by hearing impaired speakers with different experience of auditory compensation
- Spectrum Sensing For Cognitive Radio Employing Time-Domain Signal Cross Correlation For Vehicular Ad-Hoc Networks