The "tipa", "tapi", "pipa", "papi" dataset
Lippus, P; Šimko, J; Türk, H.

This dataset is collected from 4 native Estonian speakers with Carstens AG-500 electromagnetic articulograph articluating the 27 combinations of disyllabic words for the purpose of studying gemination in the Estonian three-way quantity system. All procedure is described in detail in this paper:

Türk, H., Lippus, P., & Šimko, J. (2017). Context-dependent articulation of consonant gemination in Estonian. Laboratory Phonology: Journal of the Association for Laboratory Phonology, 8(1), 26. https://doi.org/10.5334/labphon.117

The data set has 3480 rows and the 40 columns contain the following info:

SP - Speaker ID
trial - trial number
file - file name
VQ - V1 length
CQ - C2 length
rep - the i repetition of the test word in the sweep
nrep - the N of the repetitions of the test word within this sweep
C1ph - initial consonant label, levels "p", "t"
V1ph - stressed vowel, levels "a", "i" 
C2ph - intervocalic consonant, "p" (does not vary)
V2ph - unstressed vowel, levels "a", "i"
C1start - start time of the C1 in the acoustic signal. For the first repetitions of each sweep this is 0, the boundary between the initial pause and first consonant is not annotated
C1stop - end time of C1
V1start - start time of V1 (=C1stop)
V1stop - end time of V1
C2start - start time of C2
C2stop - end time of C2
V2start - start time of V2
V2stop - end time of V2
PclOnsT - /p/ closing gesture onset time
PclOffsT - /p/ closing gesture offset time
PopOnsT - /p/ closing opening onset time
PopOffsT/p/ closing opening offset time
ErrFlag
V2onsT - Tongue transition gesture onset time
V2offsT - Tongue transition gesture offset time
V1ErrFlag
PclDisp - Displacement of the /p/ closing gesture
PclPV - Velocity of the /p/ closing gesture
PopDisp - Displacement of the /p/ opening gesture
PopPV - Velocity of the /p/ opening gesture
V2Disp - Tongue transition gesture displacement
V2PV - Tongue transition gesture velocity
v2lag - (V2onsT-PclOnsT)
pClGestDur - Lip closing gesture duration (PclOffsT-PclOnsT)
pOpGestDur - Lip opening gesture duration (PopOffsT-PopOnsT)
v2GestDur - Tongue transition gesture duration (V2offsT-V2onsT)
pClDur - acoustic duration of intervocalic /p/ (C2stop-C2start)
VQCQ - combination of VQ and CQ
item = test word (C1ph+V1ph+VQ+CQ)