![]() ![]() With this script, every voice clinician can easily determine DSI in the Praat program.ĭysphonia Severity Index Multi-Dimensional Voice Program Praat Variability Voice Range Profile.Ĭopyright © 2017 The Voice Foundation. There will now be an additional button labeled Calculate CPPs that will be available anytime Praat is opened. A custom script was therefore written for automated DSI determination in Praat. Open Praat (close and reopen if Praat was already open) and then choose any audio file to load into Praat for analysis. Second, correlation statistics were applied to compare Praat's DSI with the original DSI.īoth DSI versions correlated strongly. The program is constantly being improved and new builds are published frequently. First, stepwise multiple linear regression was applied to build a statistical model with the best combination of Praat predictors for the original DSI. Praat is a program for speech analysis and synthesis written by Paul Boersma and David Weenink at the Department of Phonetics of the University of Amsterdam. A crossover research design was implemented to counterbalance for possible exercise effects. The four voice markers for the original DSI, as well as ten additional voice markers in Praat, were administered on a total of 49 subjects in three different clinical voice centers. Praat es capaz de grabar la voz en varios tipos de archivos de audio y mostrar los espectogramas. ![]() The presented project was therefore designed (1) to develop such a Praat application and (b) to test its concurrent validity. To be more generally applied, however, implementation of DSI in the program Praat (Paul Boersma and David Weenink, Institute for Phonetic Sciences, University of Amsterdam, The Netherlands) would be advantageous for all voice clinicians. The original Dysphonia Severity Index (ie, DSI) weighs and combines four voice markers in a single number to size dysphonia gradation in the clinic: percent jitter (from Multi-Dimensional Voice Program KayPENTAX Corp., Montvale, NJ), softest intensity and highest fundamental frequency (both from Voice Range Profile KayPENTAX Corp.), and maximum phonation time. ![]()
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