You can zoom in the waveform horizontally. This allows you to zoom in or out on the time scale.
Procedure
Drag the horizontal zoom slider to the right to zoom in or to the left to zoom out.
Result
The horizontal zoom setting is shown on the info line as samples per pixel. You can zoom in horizontally to a scale of less than one sample per pixel. This is required for using the Draw tool.
Note
If you have zoomed in to one sample per pixel or less, the appearance of the samples depends on the Interpolate Audio Waveforms option in the Preferences dialog (Event Display—Audio page).
