All the Q & A’s are queries that work on the ae_emuDB that comes with the emuR package:

course_data_dir = "./myEMURdata" # change to valid dir path on your system
library(emuR)
create_emuRdemoData(course_data_dir)
db = load_emuDB(file.path(course_data_dir, "emuR_demoData", "ae_emuDB"),
                verbose = F)

Q & A’s

Signal Data Extraction

Please place your answers in the R Markdown code blocks or write the answers next to the A:

  • Q: What are the names of all SSFF tracks contained in the ae_emuDB and what two emuR function can you use to get this information?

  • A:

  • Q: The ae_emuDB contains a SSFF track definition called dft. How many track columns (T1-Tn) do you get if you extract this track for any given segment list? Why so many?

  • A:

# place answer code here
  • Q: Add a new track to the ae_emuDB called ‘fund_freq’ using the add_ssffTrackDefinition() function using the ksvF0 wrassp function?
  • A:
# place answer code here
  • Q: Remove the previously added track including the files assosiated with it.
  • A:
# place answer code here
  • Q: If a certain type of data isn’t present in an emuDB (e.g. formants), what two possibilities are there to generate them for a given segment list?

  • A:

  • Q: What is the name of the SSFF track definition that is always present in every emuDB?

  • A:

Signal Data Visualization

  • Q: Plot the original F2 contours contained in the fm track of every ‘n’ segment on the Phonetic level.
  • A:
# place answer code here
  • Q: Plot the F0 contours of every ‘n’ segment on the Phonetic level. (No track available? What to do?)
  • A:
# place answer code here
  • Q: Plot the time normalized F2 contours contained in the fm track of every ‘n’ segment on the Phonetic level.
  • A:
# place answer code here
  • Q: Plot a stat ellipse formant plot (F1-F2) of the i: and u: vowels at 20% of their normalized duration.
  • A:
# place answer code here