TEVA is used by clicking buttons on the current page. Here is a list of the buttons on the Main page with a description of their use. English labels will be used here. The keyboard shortcuts are given between the -brackets (might depend on language). See also the Overview of Configuration page.
In the center of the page is the display area where a graph is drawn with the analysis. Below the time axis (if present), the voiced parts are indicated with blue-gray line segments. A green marker will indicate the point where the Harmonicity is maximal (which indicates a potential "best" part). These two additional markers will in general appear only after, respectively, the Pitch and Harmonicity contours have been displayed.
The sound level of the sound will be indicated as a colored circle in the top left of the page. The diameter scales with the maximal amplitude and the color indicates whether the maximal amplitude is too high (red), good (green), or too low (darker green to black).
The current time window will be indicated with vertical blue lines if it is smaller than the current display. Changing the display (eg, zoom in or out) will set the display window to the current time window.
A shortcut to the Select button is to click inside the display graph. The point where clicked will be marked as the first boundary and all will proceed as if the Select button was pressed. After selecting the first boundary, pressing the - or + keys will position a 1 or 2 second window around the (first) selection point, respectively. Pressing any other key or clicking the Select button again will cancel the selection.
A report with graphs and the analysis results can be saved into a report in printing format. The report contains the waveform of the current window, a 0.1 second enlargement window, and the Spectrogram, Pitch, and Ltas graphs. The analysis windows are calculated and pictures are combined into a single page report. On Apple OSX the pictures are saved as PDF graphics, on Microsoft Windows as (extended) WMF graphics. On all systems, pictures can also saved as PostScript graphics (EPS). There is experimental support for PNG format on Mac OSX and Linux.
Selected statistics about the analysis will be written below the display. This includes the Acoustic Signal Typing analysis related to the display.
© R.J.J.H. van Son, December 6, 2011