Products

Sonde Mental Fitness
Sonde Health
Developer Tools & APIs
Sonde Mental Fitness uses voice biomarkers and AI to detect and track symptoms of depression and anxiety, offering an API/SDK for integration into healthcare solutions for providers.

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About Sonde Health

Sonde Health is a leading healthcare AI company specializing in voice-based health monitoring. The company’s vocal biomarker technology analyzes subtle, disease-specific, and non-linguistic changes in a person’s voice to provide insights into various health conditions. For physicians, this platform offers a non-invasive and accessible tool for early detection, risk stratification, and ongoing monitoring of patients.

Their clinically validated technology leverages a robust dataset of over 1.2 million voice samples from more than 85,000 individuals across four continents. Sonde Health’s platform can be integrated into commonly owned devices such as smartphones and smart speakers, and its technology can also be embedded into device chipsets for passive health monitoring. The company provides enterprise vocal biomarker technology to various health verticals, including telehealth, pharmaceutical companies, remote patient monitoring, and consumer/medical device manufacturers. Sonde Health prioritizes data privacy and security, adhering to GDPR and HIPAA regulations, and is SOC Type 1 and Type 2 certified.

Focus Areas

Vocal biomarkers Mental fitness Cognitive fitness Respiratory health Depression Anxiety Mild cognitive impairment Asthma COPD COVID-19 Stress Performance tracking AI in healthcare Digital health Remote patient monitoring

Business Intelligence

Key InvestorsPartners Investment, NEOM Company, KT Corporation, PureTech Health, M Ventures, MP Healthcare Venture Management, Neoteny, Evidity Health Capital, Daphne Zohar
PartnershipsMassachusetts General Hospital, GN Group, Koye Pharmaceuticals, Qualcomm Technologies, Saaya Health, AFWERX
AcquisitionsNeuroLex Laboratories, Inc. (2020)
TechnologyAI-powered vocal biomarker platform, advanced audio signal processing, speech science, machine learning, API/SDK for integration into devices (smartphones, smart speakers, AR/smart glasses), cloud-native (implied)

What Physicians Need to Know

Vocal Biomarkers & Core Technology
Sonde Health specializes in leveraging clinically validated vocal biomarkers to detect subtle changes in voice indicative of various health conditions. Their platform uses advanced AI, machine learning, and audio signal processing, trained on millions of medically-labeled voice samples, to extract pertinent information from short voice recordings.
Mental Fitness (Depression, Anxiety, Stress, Performance Tracking)
Sonde's Mental Fitness product analyzes acoustic and prosodic vocal features from 30-second voice samples to generate a Mental Fitness (MF) score. This helps track mental state, identify symptoms associated with depression, anxiety, stress, and burnout, and supports proactive mental well-being management. It has been clinically validated to correlate with traditional mental health assessment tools.
Cognitive Fitness (Mild Cognitive Impairment)
The Sonde Cognitive Fitness solution monitors brain exertion or cognitive effort in real-time by analyzing eight vocal characteristics from 30-second voice interactions. It generates a Cognitive Fitness (CF) score to provide insights into one's cognitive state, aiding in managing mental well-being, optimizing productivity, and detecting potential cognitive changes early, including those related to mild cognitive impairment (MCI).
Respiratory Health (Asthma, COPD, COVID-19)
Sonde's Respiratory Responsive Vocal Biomarker (RRVB) tool detects and monitors symptoms of various pulmonary conditions, including asthma, COPD, and COVID-19. It can differentiate patients with these conditions from healthy individuals with meaningful accuracy, often using just a six-second 'ahh' vowel sound. This tool shows potential as a pre-screening and monitoring solution for acute respiratory infections.
AI in Healthcare, Digital Health & Remote Patient Monitoring
Sonde Health's platform is a prime example of AI in healthcare, enabling digital health solutions and remote patient monitoring. By integrating their vocal biomarker technology into everyday devices like smartphones, smart speakers, and wearables, they provide accessible, non-invasive, and continuous health insights, facilitating proactive health management and early intervention.
Physician Tip

For physicians, Sonde Health offers a novel, non-invasive method for continuous, objective patient monitoring that can complement traditional clinical assessments. The ability to track mental, cognitive, and respiratory 'fitness' through simple voice samples provides early indicators of health changes, enabling proactive intervention and personalized care. This technology can enhance remote patient monitoring programs, improve patient engagement by integrating into devices they already use, and potentially aid in risk stratification and early detection of conditions like depression, anxiety, MCI, asthma, COPD, and even COVID-19 symptoms. The data can provide valuable longitudinal insights into a patient's well-being, which is often difficult to capture with episodic clinic visits. Sonde's focus on privacy and security (HIPAA/GDPR compliant, SOC Type 1 & 2 certified) is also crucial for clinical adoption.

Sonde Health provides an API/SDK platform designed for easy integration into existing health-focused applications, devices, and enterprise systems. This allows partners to embed vocal biomarker analysis capabilities into their own offerings, including smartphones, smart speakers, hearing aids, earbuds, headphones, smart glasses, and AR glasses. They have strategic partnerships with companies like Qualcomm Technologies and KT Corporation, demonstrating their capability for seamless integration across diverse digital health ecosystems. The platform supports both cloud-based and edge AI processing, with optimized SDKs for various chipsets to ensure real-time analysis and data privacy.

Products by Sonde Health

1 product in the directory

Sonde Mental Fitness
Sonde Health
Developer Tools & APIs
Sonde Mental Fitness uses voice biomarkers and AI to detect and track symptoms of depression and anxiety, offering an API/SDK for integration into healthcare solutions for providers.

What the Web Says

Sonde Health is generally viewed as an innovative company with promising voice-biomarker technology for health monitoring. While the technology itself receives positive attention for its potential impact, specific product reviews are less abundant, and employer reviews indicate some areas for improvement in company culture and management.

Overall: Mixed

Strengths

  • Innovative and promising voice-biomarker technology with significant potential in healthcare.
  • Strong focus on R&D and cutting-edge health solutions.
  • Potential for early detection and monitoring of various health conditions.
  • Good mission-driven company with a focus on improving health outcomes.
  • Experienced leadership in the scientific and medical fields.
  • Technology has applications in mental health, respiratory health, and neurological conditions.

Limitations

  • Limited public product reviews available on major platforms like G2 or Capterra.
  • Some Glassdoor reviews mention challenges with management communication and transparency.
  • Potential for high-pressure work environment due to startup nature and ambitious goals.
  • As a newer technology, widespread adoption and integration into existing healthcare systems may face hurdles.
  • Specific details on product efficacy and user experience are not widely available from independent reviews.
  • Some employee reviews suggest a need for better work-life balance.

Based on reviews from: Glassdoor, Healthcare IT News articles/reviews, Reddit discussions (limited mentions), Company website (for product information), Industry publications discussing voice AI in health

Last updated: 2026-07-22

Videos

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Press & Coverage

Sonde Health
Sonde Health to Bring Voice-Powered Fitness Tracking to Snapdragon AR1 Gen 1 Platform for Smart Glasses and Augmented Reality Glasses
Sonde Health announced a collaboration with Qualcomm Technologies to enable its vocal biomarker platform on Snapdragon AR1 Gen 1 powered devices, bringing ambient wellness monitoring to smart and AR glasses. This integration allows for privacy-focused health tracking through everyday speech analysis.
2025-11
Sonde Health
Sonde Health and Saaya Health Forge Strategic Partnership to Improve Workforce Performance and Wellness for Blue-Collar Enterprises
Sonde Health partnered with Saaya Health to provide comprehensive performance health tracking and proactive support to blue-collar workforces using voice AI-based health tracking. This collaboration aims to enhance workforce performance and wellness.
2025-05
Sonde Health
Sonde Health Adds Elite Performers to Advisory Board to Advance Voice AI Performance Tracking for the Global Workforce
Sonde Health expanded its advisory board with experts in human performance optimization, including retired U.S. Air Force Major General Troy E. Dunn and athletes Colleen Quigley, DeAndre Hopkins, and Moses Moody, to advance its voice AI enterprise performance platform. This move aims to bring 'above-the-neck' health monitoring solutions to high-stress industries.
2025-02
Sonde Health
Sonde Health Integrates Voice-Based Health Monitoring Technology into Qualcomm's Snapdragonu00ae S7+ Gen 1 Sound Platform
Sonde Health integrated its voice-based health monitoring technology into Qualcomm's Snapdragon S7+ Gen 1 Sound Platform. This integration allows for enhanced health tracking capabilities within audio devices.
2025-01
Sonde Health
Understanding the Impact of Vocal Biomarker Technology in Mental Health: Insights from Sonde Health's Recent Study
A new study published in 'Frontiers in Psychiatry' validated Sonde Health's Mental Fitness Vocal Biomarker (MFVB) platform, demonstrating its ability to accurately discern mental health symptoms from short voice recordings. The study involved 104 participants and showed strong correlations between MFVB scores and mental health symptom severity.
2024-04
M Ventures
Sonde Health Launches New Voice-Enabled Health Screening Tool to Help Employers Return to Work During the Global Pandemic
Sonde Health launched 'Sonde One,' a voice-enabled health detection and monitoring app to help employers safely bring employees back to the physical workplace during the COVID-19 pandemic. The tool leverages Sonde's vocal biomarker platform and machine learning technology.
2020-07
PureTech Health
Sonde Health Raises $19.25 Million Series B for Voice-Based Health Monitoring
Sonde Health raised a $19.25 million Series B investment round, led by Partners Investment, with participation from NEOM Company, KT Corporation, and existing investors. The funding will be used to drive global commercial growth, deepen respiratory and mental health monitoring technologies, and build capabilities for additional health conditions.
2022-12
Chief Healthcare Executive
Sonde Health Bags $16M for Voice-Based Health-Tech Platform
Sonde Health announced a $16 million Series A funding round to expand its voice-based health-tech platform across multiple health conditions and device types. The funding was led by M Ventures, with additional investments from MP Healthcare Venture Management, Neoteny 4, LP, Canepa Healthcare, and PureTech Health.
2019-04

Frequently Asked Questions

Sonde Health's technology analyzes subtle changes in vocal characteristics, such as acoustic and prosodic features, tone, strain, and speech flow, from short voice samples using advanced algorithms and AI. This allows for the detection and monitoring of conditions across mental fitness (e.g., depression, anxiety, stress), cognitive fitness (e.g., cognitive effort, mild cognitive impairment), and respiratory health (e.g., asthma, COPD, COVID-19).
Sonde Health's technology is offered as an API/SDK, enabling seamless integration into existing digital health platforms, mobile applications, and devices like smartphones and smart speakers. For healthcare organizations, primary use cases include early detection and risk stratification, continuous remote patient monitoring, enhancing patient engagement, and supporting proactive management of mental, cognitive, and respiratory health.
Sonde Health's vocal biomarkers are backed by extensive clinical validation studies conducted in the US and India, with peer-reviewed publications demonstrating strong correlations with mental health symptom severity, cognitive function, and various respiratory conditions. The company adheres to stringent data privacy and security standards, being compliant with HIPAA and GDPR regulations, and is SOC Type 1 and Type 2 certified, with NIST Cybersecurity Framework 2.0 certification in progress.
Sonde Health prioritizes patient data privacy and security by adhering to GDPR and HIPAA regulations. Their technology is designed to process voice data locally on the user's device, preventing storage or transmission to the cloud, or if transmitted, it is encrypted and de-identified to protect sensitive health information.
Sonde Health operates on an enterprise business model, offering its vocal biomarker platform for licensing to companies looking to integrate mental fitness or respiratory monitoring products, or to develop novel voice-based health solutions. While specific pricing is not publicly disclosed, the technology is presented as a cost-effective and accessible solution for health evaluation and screening.
Sonde Health provides its technology via an API/SDK, indicating comprehensive developer support for integration and implementation into existing systems. They also collaborate closely with partners on regulatory reviews and data security agreements for research and clinical deployment. For enterprise clients, Sonde offers a dashboard that provides population-level insights, aiding in ongoing monitoring and strategic decision-making.
Sonde Health, founded in 2015 and a PureTech Health entity, demonstrates stability through a $19.25 million Series B investment round in December 2022 and ongoing product development in areas like fatigue and cognitive impairment. Key partnerships include Qualcomm Technologies for integrating vocal biomarkers into mobile platforms and chipsets, GN Group for cognitive fitness, and academic collaborations with institutions like Massachusetts General Hospital for clinical studies and research.

Investors

Who's funded Sonde Health.

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