- Keywords
- HRTF,
- MeSH
- Models, Anatomic MeSH
- Echolocation physiology MeSH
- Humans MeSH
- Sound Localization physiology MeSH
- Prospective Studies MeSH
- Auditory Pathways MeSH
- Auditory Perception * physiology MeSH
- Auditory Cortex physiology MeSH
- Models, Theoretical * MeSH
- Virtual Reality MeSH
- Sound MeSH
- Sound Spectrography methods instrumentation utilization MeSH
- Check Tag
- Humans MeSH
- MeSH
- Speech Acoustics * MeSH
- Acoustics * instrumentation MeSH
- Dysphonia etiology classification MeSH
- Phonation MeSH
- Voice Quality * MeSH
- Humans MeSH
- Signal Processing, Computer-Assisted instrumentation MeSH
- Voice Disorders * diagnosis MeSH
- Predictive Value of Tests MeSH
- Physical Exertion MeSH
- Sound Spectrography methods instrumentation MeSH
- Check Tag
- Humans MeSH
A method for analyzing and displaying electroglottographic (EGG) signals (and their first derivative, DEGG) is introduced: the electroglottographic wavegram ("wavegram" hereafter). To construct a wavegram, the time-varying fundamental frequency is measured and consecutive individual glottal cycles are identified. Each cycle is locally normalized in duration and amplitude, the signal values are encoded by color intensity and the cycles are concatenated to display the entire voice sample in a single image, similar as in sound spectrography. The wavegram provides an intuitive means for quickly assessing vocal fold contact phenomena and their variation over time. Variations in vocal fold contact appear here as a sequence of events rather than single phenomena, taking place over a certain period of time, and changing with pitch, loudness and register. Multiple DEGG peaks are revealed in wavegrams to behave systematically, indicating subtle changes of vocal fold oscillatory regime. As such, EGG wavegrams promise to reveal more information on vocal fold contacting and de-contacting events than previous methods.
- MeSH
- Algorithms MeSH
- Models, Biological MeSH
- Electrodes MeSH
- Phonation physiology MeSH
- Glottis physiology MeSH
- Voice physiology MeSH
- Vocal Cords physiology MeSH
- Music MeSH
- Humans MeSH
- Thyroid Cartilage physiology MeSH
- Vibration MeSH
- Sound Spectrography instrumentation methods MeSH
- Check Tag
- Humans MeSH
- Publication type
- Journal Article MeSH
- Research Support, Non-U.S. Gov't MeSH
