The Vocal Extent Measure: Development of a Novel Parameter in Voice Diagnostics and Initial Clinical Experience

Table 2

Results of parameters investigated with the 2 registration programs DiVAS (XION medical, Berlin, Germany) and LingWAVES (WEVOSYS, Forchheim, Germany).

Parameter of VRP	LingWAVES (mean ± SD)	DiVAS; (mean ± SD)	Significance (-test)	Difference between genders (LingWAVES)	Difference between genders (DiVAS)
VEM			NS	NS	NS
DSI			NS	NS
MPT (s)			NS	NS	NS
Jitter (%)				NS	NS
(Hz)
(Hz)			NS
(Hz)
(dB)				NS	NS
(dB)				NS	NS
(dB)				NS	NS
(dB)				NS	NS
				NS	NS
(ST × dB)				NS	NS

: area of the VRP; DSI: dysphonia severity index; : the highest tone; : the lowest tone; : frequency range, : the lowest intensity; : the highest intensity; : dynamic range; : mean dynamic range per semitone; MPT: maximum phonation time; NS: not significant; : perimeter of VRP; ST: semitones; VEM: vocal extent measure; VRP: voice range profile; at ; at ; and at .