Laboratory of Voice and Speech Physiology

Overview. The main focus of the lab is to examine the sensory-motor aspects of voice and speech production using acoustic and physiological measures. Some of current research projects include;

a) examining the effect of reduced or altered auditory feedback on the voice and resonance characteristics of speech in individuals who are hard of hearing (HoH) and/or have cochlear implants (CI) or hearing aids.

b) examining the efficacy of augmenting traditional AR therapy for improving speech intelligibility with techniques that focus on biofeedback for breath management and resonant voice production.

c) examining the prosodic patterns of ASL to spoken English interpretation


Facilities. The Voice and Speech Physiology lab is well equipped for collecting and analyzing acoustic, aerodynamic and physiological data in noise-free surroundings.

  • Acoustic: Computerized Speech Lab (CSL 4500/4100), CSL 6400, Nasometer II (Model 6450), KayPentax software modules (Analysis Synthesis Laboratory, Multi-Dimensional Voice Profile, Multi-Speech, Real Time EGG, Real Time Pitch) Professional grade recording equipment including voice recorders, microphones, headphones, external speakers, pre-amplifiers etc. Acquisition and Analysis software (Windaq Pro+, Praat, Audacity)
  • Aerodynamic: Glottal Enterprises Aeroview Plus Phonatory Aerodynamics System w/ Waveview Software (including oral and oro-nasal CV masks with pressure and flow transducers);
  • Physiological: Electroglottograph (Glottal Enterprises EG2-PCX2 with Phasecomp software, Nasometer, Nasality Visualization System, s-visualization system


People. The lab is directed by Dr. Sanyu Jaiswal with research collaborations with Ms. Brittany Palmer, Ms. Antoinette Allen, Dr. Dragana Barac-Cicoja, Dr. Brenda Seal, and graduate students (Ayanna Coleman, Jasmine Wolfe, Eric Klein, Marysabel Meija)