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COMMUNIKAY Vol. 9, No. 1
New Digital Strobe Software Introduced Kay is pleased to introduce three new software programs for use with the Digital Strobe: the Database of Stroboscopic Recordings of Laryngeal Pathologies (DSRLP), the Video Viewer for Kay Digital Video, and the Digital Strobe Voice Analysis Program (DSVAP). DSRLP DSRLP consists of more than 80 recordings of patient exams. Each recording contains a connected speech sample and laryngeal videostroboscopic exam from each patient. Selected stills (.jpg files) extracted from each exam are also provided. Many of the exams include both rigid and flexible endoscope viewing. The exams selected for use in the database are representative examples of an array of laryngeal pathologies typically encountered in the voice clinic. The database is intended for use by otolaryngologists, speech-language pathologists, residents, and students, who seek to broaden their knowledge of how various pathologies sound in conversational speech and how they appear through stroboscopic imaging. Most of the pathologies are represented by two or more examples to demonstrate the variability within diagnostic categories. In this way, clinicians can more fully appreciate the continuum of severity. Video Viewer The Video Viewer for Kay Digital Video, Model 9221, is included in Kay’s Digital Strobe systems (version 4.2 or higher), and in Digital Swallowing Workstations (version 2.1 and higher). The Video Viewer is a hardware-independent software program used for viewing and listening to exams recorded with Kay’s digital video recording systems (i.e., with .dvm, .dps, or .wav file extensions) as well as playing their associated audio files (.wav). Because Kay digital video files are stored in a compressed format, the Video Viewer decompresses this video file during playback using the host computer’s processor. The Video Viewer is solely a viewing program; as such, it cannot compress, or record, video in any format. The Video Viewer is processor-dependent and video may play back with artifacts if the host computer is not powerful enough to support full field-rate playback. It is advisable to have a computer with a minimum CPU speed of 1.5GHz to ensure smooth video playback without motion artifacts. Although delivered in the Digital Strobe system and the Digital Swallowing Workstation, the Video Viewer is also available on a CD-ROM, as an installation program, for use on a generic Windows computer. DSVAP Also newly released is the Digital Strobe Voice Analysis Program (DSVAP), a speech-acquisition and analysis program. DSVAP is designed primarily for otolaryngologists who wish to obtain a few important acoustic measurements, and a high-fidelity speech sample, on their patients. DSVAP provides quantitative acoustic analysis to complement videostroboscopic examination of patients using the same sophisticated algorithms found in Kay’s dedicated acoustic analysis product lines (e.g., CSL and Visi-Pitch), albeit with a small subset of parameters and features. DSVAP consists of two tasks: sustained phonation and a short running-speech sample. Because it is protocol-driven, the program is easy to use, even for the occasional user. Brief message prompts walk the user through each task in a step-by-step fashion. The instructions include keystrokes to execute data acquisition and analysis. Both protocols, along with an automated analysis of each task, can be performed in just minutes. The screen output and numerical results from DSVAP can then be inserted into the stroboscopy report. DSVAP does robust analysis and is in-tended to provide a simple, quantitative acoustic “snapshot” and high-fidelity acoustic sample of the patient’s voice that can be used for comparison before and after voice therapy or surgery. For more in-depth acoustic analysis, Kay offers the CSL hardware/software platform, with some 19 software options. Please contact Kay regarding availability of the new software. Complete abstracts of the following recently published studies
involving Kay instrumentation can be found under Kay in the News at
www.kayelemetrics.com: Van As, Corina, Florien J. Koopmans-van Beinum, Louis C.W. Pols, and Frans J.M. Hilgers. “Perceptual Evaluation of Tracheo-esophageal Speech by Naive and Experienced Judges Through the Use of Semantic Differential Scales.” JSLHR, Vol. 46, (4), pp. 947-959, Aug. 2003. An Xue, Steve and Grace Jianping Hao. “Changes in the Human Vocal Tract Due to Aging and the Acoustic Correlates of Speech Production: A Pilot Study.” JSLHR, Vol. 46, (3), pp. 689-701, June 2003. Jepsen, Matthew C., Deepak Gurushanthaiah, Nelson Roy, Marshall E. Smith, Steven D. Gray and R. Kim Davis. “Voice, Speech, and Swallowing Outcomes in Laser-Treated Laryngeal Cancer,” Laryngoscope, Vol. 113, (6), pp. 923-928, June 2003. Gonzalez, Julio, Teresa Cervera, and M. Jose Llau. “Acoustic Analysis of Pathological Voices Compressed with MPEG System,” Journal of Voice, Vol. 17, (2), pp. 126-139, June 2003. Dromey, Christopher, Neisha Carter, and Arden Hopkin. “Vibrato Rate Adjustment,” Journal of Voice, Vol. 17, (2), pp. 168-178, June 2003. Watts, Christopher, Jessica Murphy, and Kathryn Barnes-Burroughs. “Pitch Matching Accuracy of Trained Singers, Untrained Subjects with Talented Singing Voices, and Untrained Subjects with Nontalented Singing Voices in Conditions of Varying Feedback,” Journal of Voice, Vol. 17, (2), pp. 185-194, June 2003. Yiu, Edwin M-L, and Rainy MM Chan. “Effect of Hydration and Vocal Rest on the Vocal Fatigue in Amateur Karaoke Singers,” Journal of Voice, Vol. 17, (2), pp. 216-227, June 2003. Buder, Eugene H., and Teresa Wolf. “Instrumental and Perceptual Evaluations of Two Related Singers,” Journal of Voice, Vol. 17, (2), pp. 228-244, June 2003. Earnest, Margaret M., and Ludo Max. “En Route to the Three-Dimensional Registration and Analysis of Speech Movements: Instrumental Techniques for the Study of Articulatory Kinematics,” Contemporary Issues in Communication Science and Disorders, Vol. 30, pp. 5-25, Spring 2003. Robb, Michael, Harvey Gilbert, Ricki Reed, and Amanda Bisson. “A Preliminary Study of Speech Rates in Young Australian English-Speaking Children,” Contemporary Issues in Communication Science and Disorders, Vol. 30, pp. 84-91, Spring 2003. Donzelli, Joseph, Michele Wesling, Susan Brady, and Mary Craney. “Predictive Value of Accumulated Oropharyngeal Secretions for Aspiration During Video Nasal Endoscopic Evaluation of the Swallow,” Annals of Otology, Rhinology and Laryngology, Vol. 112, (5), pp. 469-475, May 2003. Martin-Harris, Bonnie, Martin B. Brodsky, Christina Clare Price, Yvonne Michel, and Bobby Walters. “Temporal Coordination of Pharyngeal and Laryngeal Dynamics with Breathing During Swallowing: Single Liquid Swallows,” Journal of Applied Physiology, 94, pp. 1735-1743, May 2003. Reidy, Patrick M., James P. Dworkin, and John H. Krouse. “Laryngeal Effects of Antigen Stimulation Challenge with Perennial Allergen Dermatophagoides Pteronys-sinus,” Otolaryngology-Head and Neck Surgery, Vol. 128, (4), pp. 455-462, April 2003. Chang, Hsin-Pin and Shyue-Yih Chang. “An Alternative Surgical Procedure for the Treatment of Vocal Fold Retention Cyst,” Otolaryngology-Head and Neck Surgery, Vol. 128, (4), pp. 470-477, April 2003. Verneuil, Andrew, Bruce R. Gerratt, David A. Berry, Ming Ye, Jody Kreiman, and Gerald S. Berke. “Modeling Measured Glottal Volume Velocity Waveforms,” Annals of Otology, Rhinology and Laryngology, Vol. 112, (2), pp. 120-131, Feb. 2003. Peretti, Giorgio, Cesare Piazza, Giovanna Cantarella, Cristiano Balzanelli, and Piero Nicolai. “Vocal Outcome After Endoscopic Cordectomies for TIS and T1 Glottic Carcinomas,” Annals of Otology, Rhinology and Laryngology, Vol. 112, (2), pp. 174-179, Feb. 2003. Beaver, Mary ES, C. Richard Stasney, Erik Weitzel, Michael G. Stewart, Donald T. Donovan, Robert B. Parke, Jr., and Margarita Rodriguez. “Diagnosis of Laryngopharyngeal Reflux Disease with Digital Imaging,” Otolaryngology-Head and Neck Surgery, Vol. 128, (1), pp. 103-108, Jan. 2003. Zeitels, Steven M., Robert E. Hillman, Ramon A. Franco, and Glenn W. Bunting. “Voice and Treatment Outcome from Phonosurgical Management of Early Glottic Cancer,” Annals of Otolaryngology, Vol. 111, (12), Supplement 190, pp. 3-20, Dec. 2002. Zeitels, Steven M., Robert E. Hillman, Rosemary Desloge, Marcello Mauri, and Patricia B. Doyle.. “Phonomicrosurgery in Singers and Performing Artists: Treatment Outcomes, Management Theories, and Future Directions,” Annals of Otolaryngology, Vol. 111, (12), Supplement 190, pp. 21-40, Dec. 2002. Bammer, Tanja, John R. Salassa, and Paul J. Klingler. “Comparison of Methods for Determining Cricopharyngeal Intrabolus Pressure in Normal Patients as Possible Indicator for Cricopharyngeal Myotomy,” Otolaryngology–Head and Neck Surgery, pp. 299-308, Oct. 2002. Speyer, Renee, George Wieneke, Elham Ghazi Hosseini, Pieter A. Kempen, Willem Kersing, and Philippe H. Dejoncker. “Effects of Voice Therapy as Objectively Evaluated by Digitized Laryngeal Stroboscope Imaging,” Annals of Otology, Rhinology, and Laryngology, Vol. 111 (10), pp. 902-908, Oct. 2002. Rothman, Howard B., W.S. Brown, Jr., and J. Ronald LaFond. “Spectral Changes Due to Perfomance Environment in Singers, Non-singers, and Actors,” Journal of Voice, Vol. 16, (3), pp. 323-332, Sept. 2002. Timmermans, B., M.S. De Bodt, F.L. Wuyts, A. Boudewijns, G. Clement, A. Peeters, and P.H. Van de Heyning. “Poor Voice Quality in Future Elite Vocal Performers and Professional Voice Users,” Journal of Voice, Vol. 16, (3), pp. 372-382, Sept. 2002. Soneghet, Renata, Rodrigo Paula Santos, Mara Behlau, Walter Habermann, Gerhard Friedrich, and Heinz Stammberger. “Nasalance Changes After Functional Endoscopic Sinus Surgery,” Journal of Voice, Vol. 16, (3), pp. 392-397, Sept. 2002.
Kay’s new program, Real-Time EGG Analysis, Model 5138, is a powerful software option that can be used in conjunction with an electroglottograph and Kay’s CSL, Visi-Pitch, and Multi-Speech platforms. For assessing and treating voice disorders, electroglottography (EGG) provides an intuitive representation of vocal fold dynamics and relative contact patterns during phonation. However, real-time processing of the EGG waveform in its proper aspect ratio is not typically provided in general-purpose data-acquisition systems. Rather, these systems display a compressed EGG waveform during acquisition. Kay’s Model 5138 provides a triggered display of very short time durations, with proper aspect ratio, as the patient phonates; it also calculates and displays user-defined quantitative EGG measures (quotients). Only one quotient is displayed in real time, but all can be calculated post-processing. Model 5138 can also be used for visual feedback to the patient. The clinician instructs the patient on “desirable” vocal behavior; the patient then uses the display to practice proper phonatory technique.
The Computerized Speech Lab (CSL), Model 4500, is Kay’s newest, most advanced acoustic analysis system. A professional-level hardware/software system, the latest generation CSL hardware is integrated with a rich array of speech analysis and biofeedback software packages. An input/output recording device for a PC, which complies with the rigorous specifications and features needed for the most exacting speech-processing requirements, Model 4500 offers input signal-to-noise performance typically 20 dB superior to generic, plug-in sound cards, designed primarily for sound output. CSL boasts numerous citations in professional peer-reviewed journals for its broad range of application in analyzing speech and voice. Since its introduction a decade ago, CSL has become the instrument of choice for clinicians at leading medical centers and for university researchers. It includes a state-of the-art PCI hardware interface, using ASIO drives for low latency between the external module and the host computer, as well as a wealth of features ideal for speech analysis. CSL has been enhanced throughout ten years of development to yield a rich set of features for speech analysis for teaching, research, voice measurements, clinical feedback, acoustic phonetics, and second language articulation; 19 optional programs and databases target specific speech applications. For more information, contact a product specialist or your local representative.
Advanced Stroboscopy with Bless, Woo On August 8-9, Kay presented its two-day Advanced Stroboscopy Workshop to current stroboscope users eager to improve their operational and interpretational skills of stroboscopic exams and clinical management based on exam findings. Featured speakers, Peak Woo, M.D., and Diane Bless, Ph.D., taught the interpretation section of the workshop. Woo, a renowned specialist in phonosurgery, is a laryngologist and Director of Clinical Services at the Grabscheid Voice Center, and Eugene Grabscheid Professor of Otolaryngology, Mount Sinai School of Medicine, New York. Bless, co-author of the acclaimed text, Video-stroboscopic Examination of the Larynx, is a speech pathologist and professor in the Department of Communication Disorders and Department of Surgery at the University of Wisconsin, where she serves as the director of the Voice Clinic. Both distinguished speakers have published and lectured widely on videostroboscopy. According to participants, the workshop was “very informative and helpful,” with “a terrific interdisciplinary perspective” that improved their “overall knowledge of strobes and pathology” as well as their “diagnostic skills.” Others praised the “great interaction among the professionals” and the unique way in which the course “brought together the manufacturer (Kay Elemetrics) of the diagnostic tool with the voice diagnosticians.” The course was offered as part of Kay’s ongoing commitment to customers through operational support and continuing education. The next Advanced Stroboscopy Work-shop, with Clark Rosen, M.D., and Mike Karnell, Ph.D., as new guest faculty, is scheduled for December 5-6. For further information about upcoming workshops, visit: www. kayelemetrics.com/WhatsNew /training.htm.
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