Selection Toolbar
From Audacity Manual
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Selection Toolbar includes the Project Rate and Snap To controls. It also lets you precisely place the cursor point or selection region without having to click or drag in the waveform using a mouse, and without having to zoom in first to find the exact spot.
The Selection Toolbar (above) is normally at the bottom of the Audacity window, but like any of the Toolbars, it can be moved as desired by dragging the grab bar on its left side. Selection Toolbar shows and allows changing of the following:
- Project Rate: The sample rate for the project, typically 44100 Hz. Changing this value immediately changes the sample rate at which new tracks will be recorded or generated, and at which existing tracks will be played back, mixed or exported.
- Snap To: If checked, selections and mouse clicks snap to the currently chosen units. For example, the units in the image above are set to hours, minutes and seconds (hh:mm:ss). If Snap To is checked and the cursor is at the start of the Timeline, clicking in the track at 2.8 seconds causes the cursor to jump to the nearest preceding unit, in this case 2.0 seconds. To change the units to another format such as samples or CDDA frames, click the downward pointing arrow in any of the three boxes to right of Snap To, or right-click over them.
- Selection Start: If there is no selection, this shows the cursor position.
- (Selection) End/Length: Click the "End" radio button to show the end point of the selection. If there is no selection, the value is the same as the Selection Start. Clicking the "Length" button shows the length of the selection instead (the value shows as zero if there is no selection).
- Audio Position: Displays the current real time position of playback or recording.
Editing the Selection Toolbar values
You can edit the individual values in the numerical entry boxes so as to change the cursor position or selection area on the waveform. Using a mouse, click on the digit and then use either the mouse wheel or the up and down arrow on the keyboard to increment the value. Use left and right arrow to navigate to adjoining values, and TAB and SHIFT + TAB to navigate to adjoining boxes. Selection Toolbar is also fully accessible using only the keyboard. See Audacity Selection for full details.
