Glottal Enterprises helps researchers with proven voice measurement systems. Our products, found in leading research centers worldwide, are based on over 30 years of professional experience and innovative research in voice measurement. Glottal Enterprises was founded 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. Glottal Enterprises Inc. does not promote the use of its instruments for clinical or medical applications. Instruments and software provided by Glottal Enterprises are not intended for the diagnosis, cure, treatment, or prevention of disease in humans or animals.