Glottal Enterprises helps clinics, hospitals and home users with precise, proven voice measurement systems and accurate, comfortable speech therapy solutions. Our products, found in leading hospitals and research centers worldwide, are based on over 30 years of professional experience and innovative research in voice measurement.Glottal Enterprises was founded in 1979 by Martin Rothenberg, PhD, to offer other researchers the unique speech and voice measurement methods developed at the Speech Research Laboratory of Syracuse University. Glottal Enterprises products are based on Dr. Rothenberg's original research in speech, voice and language. His patented designs have brought researchers and clinicians a broad line of tools, including electroglottographs, airflow, and pressure measurement equipment. The equipment is widely preferred by professionals in speech, voice, language, swallowing and singing research, as well as for demanding clinical applications. Equipment manufactured by Glottal Enterprises is used in leading clinics and research institutions around the world.