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Voicing and silence periods in daily and weekly vocalizations of teachers
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10.1121/1.2390676
/content/asa/journal/jasa/121/1/10.1121/1.2390676
http://aip.metastore.ingenta.com/content/asa/journal/jasa/121/1/10.1121/1.2390676

Figures

Image of FIG. 1.
FIG. 1.

(a) (Color online) The NCVS Voice Dosimeter, consisting of a modified Pocket PC with an accelerometer as the transducer. (b) The accelerometer is attached using hypo-allergenic medical adhesive and medical tape, to the sternal notch. The cabling runs underneath the clothing and the dosimeter is worn in a fanny pack.

Image of FIG. 2.
FIG. 2.

A dosimeter recording: (a) skin acceleration level (SAL) in dB, (b) voicing fundamental frequency, (c) and voice/no-voice switch (1 for voice, 0 for no voice).

Image of FIG. 3.
FIG. 3.

Ensemble averages (31 teachers) of histograms for (a) voice and silence occurrences/h for specific durations in logarithmic bins, and (b) voice and silence accumulations in s/h for these same occurrences, over the same bin distribution.

Image of FIG. 4.
FIG. 4.

Ensemble averages (31 teachers) comparing at-work and not-at-work histograms of (a) voice occurrences/h, (b) silence occurrences/h, (c) voice accumulation in s/h, and (d) silence accumulation in s/h.

Image of FIG. 5.
FIG. 5.

Ensemble averages (31 teachers) comparing weekday and weekend histograms of (a) voice occurrences/h, (b) silence occurrences/h, (c) voice accumulation in s/h, and (d) silence accumulation in s/h.

Image of FIG. 6.
FIG. 6.

(Color online) Ensemble averages (31 teachers) of (a) voicing occurrences/h and (b) voicing percentage/h over a period of a week. A two-week stretch was averaged into an equivalent one week stretch.

Tables

Generic image for table
TABLE I.

The results of each subject are presented in terms of vocal occurrences/h of recording (No. occurrences), the number of hours of recording, and number of days the subject participated. Results are displayed in terms of the weekday at work average, weekday not at work average and the weekend average. Averages and standard deviations for the overall group were shown. At Work and Not At Work averages were statistically different where Not At Work and Weekends were statistically similar.

Generic image for table
TABLE II.

The results of each subject are presented in terms of the percentage voicing/h of recording (% voicing), the number of hours of recording, and number of days the subject participated. Results are displayed in terms of the weekday at work average, weekday not at work average and the weekend average. Averages and standard deviations for the overall group were shown. At work and not at work averages were statistically different where Not At Work and Weekends were statistically similar.

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/content/asa/journal/jasa/121/1/10.1121/1.2390676
2007-01-01
2014-04-19
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Voicing and silence periods in daily and weekly vocalizations of teachers
http://aip.metastore.ingenta.com/content/asa/journal/jasa/121/1/10.1121/1.2390676
10.1121/1.2390676
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