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A voice accumulator is a portable system for long-term measurements of voice use in normal conditions. A make contact with microphone connected to your front portion of the neck registers vocal fold vibrations. The purposes of the current study had been: 1) to evaluate the voice accumulator's two measuring applications optimized for registration of elementary frequency (F0) and phonation time,Office 2007 Professional Key, respectively; and two) to test the voice accumulator for discipline recordings. Four healthful subjects have been recorded in a very sound-proof booth concurrently with one speak to microphone into a voice accumulator and a single get in touch with microphone right into a laptop or computer. When it comes to F0 and phonation time,Windows 7 Professional Key, the results showed that correlations among the voice accumulator's two measuring packages plus a signal-processing method had been high ( r &#83 0.85) for all subjects but 1. The inter-subject variability was large. A prerequisite for reliable vocal fold vibration detection by the voice accumulator was a careful placement and a firm attachment with the make contact with microphone on the neck. Four subjects had been recorded with the voice accumulator during a working day. It was concluded that the voice accumulator is an overall good instrument for measurements of F0 and phonation time,Office Home And Business 2010 Key, and thus is useful for both clinical work and research.