Visible Vowels uses a live view, i.e., each time the user changes something in the settings, the plot shown in the viewer is immediately adjusted accordingly. Visible Vowels is a web app for the visualization and normalization of acoustic vowel measurements: f0, formants and duration. October 2016 - present, Fryske Akademy, Leeuwarden. The application is implemented in the PRAAT scripting language. Using this application students of speech and language therapy can train their pronunciation of Flemish Dutch vowels against voices of broadcasters of the Flemish Radio and Television Broadcasting Organization. VowelEditor: Show vowel marks from Table file.November 2014 - August 2016, Thomas More University College, Speech therapy and Audiology, Antwerp.Ĭoco is a vowel pronunciation training system 'Coco'.Publish the Sound, the PitchTier and the FormantTier from the trajectory.ĭraws the trajectory in the picture window. Make the synthesized sound available in the object menu. Here you can modify the sharpness of the F1 and F2 peaks and also add a number of higher formants. Shows time markers as small bars orthogonal to the trajectory. The optional Size column contains the font size of the vowel markers, while the Colour column contains the colour specification of each vowel. The Vowel column contains the vowel marker labels, the F1 and F2 columns have the first and second formant frequencies in Hertz. The Table needs to have at least three mandatory columns labeled "Vowel", "F1" and "F2" and two optional column labeled "Size" and "Colour". Show the vowel marks in the editor from a fixed set of vowel inventories. Modify the horizontal and vertical scales. Set startpoint, endpoint and duration of a new trajectory. Modifies trajectory duration (like editor field). Reverses the trajectory (like editor button). The bottom line in the Editor displays the first and second formant frequency and the fundamental frequency at the start point and the endpoint of the trajectory. After you finished the new trajectory, three trajectories will be appended: the current one, the straight line one and the new one.ĭetermines the fundamental frequency at the start of the trajectory.ĭetermines how many octaves the pitch will changes during the course of the trajectory. You may extend the current trajectory by starting a new trajectory with the shift button pressed. Will publish the sound in the list of objects.Īllows to modify the duration of the current trajectory.ĭetermines the duration of the straight line trajectory that connects the endpoint of the current trajectory with the startpoint of a new trajectory. ![]() In the lower part of the editor a number of buttons and fields are displayed. With default settings, time markers are at 50 milliseconds apart and they may give you an indication of the speed by which you traversed the trajectory.) ![]() (The small bars on the trajectory are time markers. Next you will hear the vowel-like sound whose first two formants follow this trajectory. After you release the mouse button, the color of the trajectory will change to black. While you move the cursor around, the positions you trace will be indicated by blue dots. With the mouse button down, you can move the mouse cursor around in the plane spanned by the first two formants. An Editor for generating vowel-like Sounds from mouse movements.
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