PMC2685150_01
The NCVS voice dosimeter worn by a male adult (left) and sample output (right) of loudness, frequency (spectral centroid and fundamental frequency), and voicing detection in 30 msec intervals.
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A potential tool for such examination is the National Center for Voice and Speech (NCVS) voice dosimeter (Figure 1, discussed in further detail below), a device designed to monitor voice use in adults for several days at a time ().