Glottal Enterprises Inc. produces the Aeroview Aerodynamic Voice Analysis System, which offers several advantages over the Kay-Pentax PAS system for voice analysis. The Aeroview system allows for one-hand operation, uses a circumferentially vented mask that causes less speech distortion, and can be easily moved between computers. It also provides additional voice analysis features like measuring phonation threshold pressure and displaying glottal airflow pulses during vowels that the Kay-Pentax system does not.

1. Glottal Enterprises Inc. www.glottal.com (315) 422-1213
The Aeroview Aerodynamic Voice Analysis System from Glottal Enterprises
AeroviewPlus by Glottal Enterprises compared with the Kay-Pentax PAS system
Features Kay-Pentax
PAS System AeroviewPlus*
Convenient one-hand operation NO YES
Low speech distortion circumferentially vented (CV) mask NO ** YES
Usable with any modern Windows PC YES YES
Usable with any modern Laptop NO YES
Easily movable between computers NO YES
Reliable measurement of Phonation Threshold Pressure (PTP) NO YES
Detailed interactive instructional manual YES YES
Displays the low-pass filtered airflow during voicing and consonants YES YES
Displays the glottal airflow pulses during vowels NO YES
Automated subglottal pressure interpolation from intraoral pressure NO YES
Average glottal flow resistance YES YES
Voice fundamental frequency YES YES
Syllable rate shown onscreen NO YES
Accurate Sound Pressure Level (SPL) NO * YES
Auto-averages over three user-selected syllables NO YES
Auto-zero for transducers NO YES
Approximate glottal airflow pulse wave shape, including offset from zero flow (breathiness) NO** YES
Detailed glottal pulse wave shape using inverse filtering NO** YES
Display two airflow channels (oral and nasal) from a single mask (with Dualview upgrade) NO YES
Compute the DC-Nasalance from the oral and nasal airflows (with Dualview upgrade) NO YES
* SPL recorded by the PAS system is not accurate because of the muffling and acoustic distortion of the respiratory mask used.
** Glottal waveform analysis, including inverse filtering, cannot be performed using the PAS system because of the acoustic distortion caused by the closed
respiratory mask used in the PAS system.
*This product is for research and teaching purposes only. It is not a medical device. It is not intended to be used in the diagnosis, cure, treatment or prevention of disease and it
is not intended to affect the structure or function of the body.