Phonatory Deviation Diagram is a simple and straightforward graph, which ranks the client’s production inside a normal or altered area by means of a little red circle, which indicates the average value and smaller green circles, which show the irregularity distribution, particularly concerning phonatory deviation; it enables brief and precise information on the quality of the client’s production.
You can record a sound and edit the sound file easily!
The statistics screen displays the acoustic analysis values of fundamental frequency, jitter, shimmer, irregularity, noise rate and GNE (Glottal to Noise Excitation).
It´s possible to send the results by e-mail (sound file, Phonatory Deviation Diagram and Statistics) or export the sound file through iTunes.
Note: To use the Vocal Quality Functions, record a sustained vowel for some seconds (preferencially the /e/ vowel)
Dr. Mara Behlau, pDH
*Phonatory deviation Diagram is based on hoarseness diagram method developed by Dr. D. Michaelis (pHD thesis). References:
1.[Kasuya et al.] Novel acoustic measurements of jitter and shimmer characteristics from pathological voice, Eurospeech '93, p. 1973-1976 (1993)
2.[Michaelis et al. 1998] JASA 103(3), pp.1628-1639 (1998)
3.[Fröhlich et al. 2000] JSLHR 43, pp.706-720 (2000)
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