Dani Byrd
Haskins Labs., 270 Crown St., New Haven, CT 06511-6695
Catherine P. Browman
Haskins Labs.
Louis Goldstein, and Douglas Honorof
Haskins Labs.
Yale Univ.
In the past, much articulatory movement data have been obtained using the
x-ray microbeam. Currently, however, magnetometer systems such as EMMA are
becoming predominant. A unique data set, addressing concerns of consistency
between these instruments is reported. A single speaker was recorded with both
instruments reading the same utterances: ``It's a [pV'CVp] again.'' Data from
two x-ray microbeam (XRMB) runs were collected on the same day (pellets
re-placed for the second run); 27 months later the parallel EMMA data were
collected. Vertical movement of the lower lip, tongue tip, and tongue body
during the VCV's was analyzed. Extrema positions (amplitudes) and distance and
time between these positions (gestural displacements and durations) were
obtained. The results demonstrate that the correlation between EMMA and XRMB
runs is very high, almost as high as that between the two XRMB runs.