QTAtrainer is useful not only for resynthesizing f0 contours of individual sentences, but also as a research tool. Tier 2 intervals labeled as F or f are searched only for negative slopes.Tier 2 intervals labeled as R or r are searched only for positive slopes.Tier 2 intervals labeled as H, M, L, h, m or l are given a fixed 0 slope.For each sound file, blank intervals in the target tier (2) are given full search ranges defined by the maximum and minimum parameter values.In the startup window, users can change the global search ranges defined by the maximum and minimum parameter values.The target search ranges can be restricted by user in a number of ways: No targets are extracted from intervals with no labels. The target intervals are defined by user by marking its boundaries and entering a label in the top tier of the TextGrid. The parameter set with the least SSE is chosen as the target of the interval. For each target interval, the script uses all possible combinations of the three parameters within the search range to generates f0 contours based on qTA, at a certain step size, and the difference between the synthesized and original contours is computed in terms of sum of squared errors (SSE). The extraction of target parameters in this script is done by analysis-by-synthesis. The surface f0 is the outcome of sequential asymptotic approximation of successive pitch targets based on a critically damped 3rd-order linear system. In qTA, a target is defined by the linear equation f0 = mt + b, where f0 is the surface f0, m is the slope of the target and b is the height of the target defined as the intercept of the target offset with the y-axis. The current script is based on the implementation of Prom-on, Xu and Thipakorn (2009). The target notion is the core of the PENTA model (Parallel Encoding and Target Approximation, cf. A pitch target is the ideal f0 trajectory associated with a segmental unit, which is defined by three parameters: slope, height and strength. This script is for automatic extraction of pitch target parameters. * Original sound from ToBI training web site: Explanation Collect extracted parameters of all sounds in a folder and save them in ensemble files.Perform the same f0 analysis as ProsodyPro.Exhaustively process all wav files in a folder.Manually rectify vocal pulse markings for accurate f0 tracking.Specify target location and restrict direction of target slope.Resynthesize F0 contours based on user-modified or any arbitrary target parameters.Resynthesize F0 contours based on the extracted target parameters.Automatically extract pitch target parameters (slope, height, strength) based on qTA ( Prom-on, Xu & Thipakorn, 2009).QTAtrainer (previously PENTAtrainer1) - A Praat script for automatic analysis and synthesis of intonation based on the qTA model, working on individual sound files ( Version 1.2) Īn interactive Praat script that allows you to:
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