Ongoing research projects

Preliminary guidelines for clinical examination of voice problems:
- Reflux examination
- High Speed Digital Imaging (HSDI)
- Phonetograms
- Electroglottography (EGG)
- Overtone analysis
- Speaking frequency analysis
- Cough form
- VQOL (Voice Quality Of Life)
- VHI (Voice Handicap Index)
- OCT diagnostics of larynx


Other activities

Routine analysis

A program for voice analysis made by Laryngograph.

A program for voice analysis made by Kay-elemetrics - Pentax.

High Speed Analysis Wolf Ltd.:
This equipment is purchased from Wolf Ltd. which makes us able to record a sample with sound and video of the throat and the vocal cords. 4000 pictures pr. second with fiber optics and stored films (Stoboscopy with only 25 pictures pr. seconds gives a distorted picture), there are 187 measurements in the software, licensed from Erlangen (Prof. Döllinger) for high speed film and analysis, including acoustically analysis, glottal areal waveform, ect.

Current analysis method includes Lingwaves software (see also thesis/ebook 2014).

Formants and overtones:
Description of intensity maxima of the sound in the human throat. Overtone Analyzer by software company SYGYT(r) used to visualize formants and overtones up to 20.000 Hz, this is valuable for registers and high note problems, in voice recordings.

Medical Voice Hygiene Advice.
Advice on proper use of the voice for optimal function both in singing and speaking, including Voice Handicap Index (VHI) and Reflux Symptom Index (RSI), as well voice related quality of life (VQOL).


Ongoing discussion of symptoms evaluation of general test including allergy, infection and genetics, pharmacogenetics treatments and lifestyle treatments.