Aggregate data

Fast Track collects a lot of information about formant patterns across time. It may be too much for some purposes. After a folder analysis is carried out, this function will aggregate formant information from all files into a single CSV files. The user determines the number of formants to collect and the number of equally-sized temporal bins. For example, the default of five returns average (or median) formant values collected for the first 20% of the vowel, then from 20-40%, from 40-60%, and so on, for each formant. Vowel durations and average f0 is also collected. More information could easily also be collected by modifying the script directly (/tools/aggregate.praat).

Below is four different presentations of the same data:

• top-left: every single measurement, collected every 2 ms.
• top-right: every category mean, for each talker.
• bottom-left: every category mean, overall.