VoxMetria 1.0.13

VoxMetria - Vocal Quality is a specialized tool designed for Speech-Language Pathologists to conduct detailed voice analyses. It features a phonatory deviation graph that visually represents voice deviations, aiding clinicians in their assessment process.

• The Phonatory Deviation Diagram provides a clear and accessible visualization, distinguishing between normal and altered voice production. This is achieved through the use of a central red circle indicating the average voice value, surrounded by smaller green circles that depict the distribution of irregularities related to phonatory deviation. The diagram offers concise and precise insights into the client's voice quality.
• The platform allows for straightforward recording and editing of sound files, facilitating seamless data management.
• The statistics screen displays key acoustic parameters, including fundamental frequency, jitter, shimmer, irregularity, noise rate, and GNE (Glottal to Noise Excitation), supporting comprehensive analysis.
• Results can be conveniently shared via email, including sound files, the phonatory deviation diagrams, and statistical data. Additionally, sound files can be exported through iTunes for further use.
• To optimize the utilization of Vocal Quality functions, it is recommended to record a sustained vowel sound, preferably /e/, lasting several seconds.

Coordination: Dr. Mara Behlau, pDH

*The Phonatory Deviation Diagram is based on the hoarseness diagram method developed by Dr. D. Michaelis (pHD thesis). References include:

1. Kasuya et al. (1993). "Novel acoustic measurements of jitter and shimmer characteristics from pathological voice," Eurospeech, pp. 1973-1976.
2. Michaelis et al. (1998). "JASA," 103(3), pp. 1628-1639.
3. Fröhlich et al. (2000). "JSLHR," 43, pp. 706-720.