EPG

Electropalatography (EPG)

View some notes on electropalatography here.

Make sure that you watch the main EPG video. Also provided here are two additional short animated movies, e1.mov and e2.mov, that further illustrate the operation of an electropalatograph. (These two movies should play if your computer is already able to display the main EPG movie).

Some further information on this data is as follows:

1. Pstart (column 2) and pend (column 3) show the approximate start and end palatograms for each word. So for example the first word, 'Kate', starts near palatogram 1 and ends near palatogram 62.
2. The palatograms occur every 5 ms (milliseconds) and so the ending time (end) i the same as pend but multiplied by 5. The starting time is (pstart x 5) - 5. Five ms is subtracted from the start time as (pstart x 5) is the time at the end of that palatogram and we are interested in the time at the start of that palatogram (5 ms earlier). For example, since the next word, 'wheateron's' starts at palatogram 63, its start time in ms is (5 x 63) - 5 = 310 ms. You will note that this means that the start of each word is one palatogram after the end of the preceding word, but is at the same point in time in milliseconds as the end of the preceding word.
3. The penultimate column dur is the duration in milliseconds of each word (so the difference between end and start).

Results

View the waveform for this utterance here. Note that the time scale on the waveform is shown in seconds (top row: multiply this by 1000 to obtain milliseconds) and also as palatogram numbers (bottom row: palatogram samples at a rate of 200 per second or 5 ms apart). Also, the word boundaries (as quantified in the table above) are indicated by vertical red lines.

View the electropalatograms for this utterence here. Note that only every second palatogram (ie. odd numbered palatograms) is in this file and therefore the difference beween each adjacent pair of these palatograms is 10 ms rather than 5 ms (as it would have been if all palatograms had been supplied)..

2012 workshop questions

View the questions you must answer for this workshop.

You should print out this document, answer the questions on the printed sheets, and attach the Linguistics Department assignment cover page to it. Please place a hardcopy of your assignment in the assignment box in the faculty undergraduate office on the ground floor of C3A. If, and only if, you are unable to deliver it to the university (this should only affect some distance students) then scan it as a black and white image (not colour) and email the scanned pages directly to Robert Mannell.