Cornell Phonetics Laboratory

Robert Barker (UPHOTO)
Robert Barker (UPHOTO)
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Sound-Recording Facilities

CPL contains a sound booth for experiments that require high-quality audio recordings or acoustic isolation from environmental noise. Audio stimuli can be provided by studio-quality headphones or speakers. Responses can be recorded by way of a button response box, studio-quality microphones, and video.

Cornell researchers use this facility to

• Record speech from native and non-native speakers of different languages and language dialects 
• Conduct stimulus/response experiments to test hypotheses on how humans perceive and produce speech.

Articulatory Movement Tracking

The NDI-Wave Electromagnetic Articulatory Movement (EMA) lets researchers study the movements of the lips, tongue, and jaw while people are speaking.

Real-time biofeedback with electromagnetic articulometry
Real-time EMA biofeedback games

Real-Time Vocal Tract MRI

CPL is affiliated with the Cornell Speech Imaging Group (SIG), a cross-disciplinary team of researchers using real-time magnetic resonance imaging to study the dynamics of speech articulation.

Real-time MRI Vocal Tract Features
Cornell Speech Imaging Group: America the Beautiful
In the News: Hidden impatience revealed in linguistics study 


CPL’s GE LOGIQbook hand-carried ultrasound imaging system creates real-time sonograms of the vocal apparatus during speech. This portable ultrasound—a battery-powered "laptop" imager—is small and light enough for field research. Cornell researchers have used it in Africa to study tongue posture in click languages.


CPL’s Glottal Enterprises EG-2 Electroglottograph (EGG) lets researchers non-invasively measure properties of vocal fold vibration, including creaky voice and breathy voice. This device is also used for instruction in both graduate and undergraduate phonetics courses.

Studying Speech and Language

The Cornell Phonetics Laboratory (CPL) provides an integrated environment for the experimental study of speech and language, including its production, perception, and acquisition. Located in Morrill Hall, the laboratory consists of six adjacent rooms and covers about 1,600 square feet. Its facilities include a variety of hardware and software for analyzing and editing speech, for running experiments, for synthesizing speech, and for developing and testing phonetic, phonological, and psycholinguistic models.