User's Manual - Cornell Lab of Ornithology - Cornell University

Chapter 1: Getting StartedCouplingof cursorsbetween panesSnap cursors toselectionIn general, as you move a cursor in one pane, cursors in the correspondingdimensions of other panes move as well. For example, as you move a cursor inthe time dimension in the waveform pane, the corresponding time cursor inthe spectrogram pane moves in synchrony. No change occurs in the spectrumselection as you move cursors in the waveform pane, since the time dimensionis not represented in the spectrum. Similarly, if you move one of the frequencycursors in the spectrogram pane (vertical dimension), the correspondingfrequency cursor in the spectrum pane (horizontal dimension) tracks themovement.You can make cursors “snap” to outline an existing selection (made with themouse) by holding down the option key while clicking the CURSORS button.optionMaking and storing measurementsThe measurementpanelActivate the waveform pane, and then choose Measurement Panel from theWindows menu. A window like that shown in Figure 1.11 will appearcontaining the default measurement panel for the waveform pane. The upperrow of the measurement panel always shows various parameters of the activepane and the signal. The lower row shows the values of measurements of thesignal for the point where the mouse pointer is located, or for the regionselected in the display. As you move the mouse across the signal, the valuesdisplayed in the measurement panel change. (If you move the pointer off ofthe plot area of the active pane, the measurement cells display “--”.) Canarylets you make many other measurements of a signal in addition to the onesillustrated in this section; Chapter 6 explains how to configure themeasurement panel to display whatever combination of measurements youwant.Figure 1.11. The default waveform measurement panel.Activate one of the other panes, and the measurement panel will beautomatically redrawn to display measurements appropriate to the activepane. For example, if you activate the spectrogram pane, the measurementpanel looks like the one in Figure 1.12.Canary 1.2 User’s Manual 23