**Dysphagia Study Using Novel Microphone Device** This study focuses on improving ways to detect *dysphagia*, which means having trouble swallowing. Instead of using invasive methods, this study uses a special thin film called a nanomembrane patch. This patch is worn on the chin and listens to the sounds of your muscles as you swallow. It helps to study the swallowing patterns using a *machine learning algorithm*, which is a smart computer program that learns from data. **Key Points:** - Participants should be between 40 and 85 years old and have either had a stroke or are suspected to have swallowing issues. - The study involves wearing a patch during a routine swallowing test, so it's non-invasive. - Participants will be from Emory University Hospital and need to sign a consent form before joining. The study is not suitable for individuals with a BMI over 35 or those with a history of head and neck cancer treatment, as these factors affect the patch's performance. Participants will need to fill out a questionnaire and their data will be securely stored.