Chopper window using

The Transport Controls (see Figure 1.6) operate like standard media file playback or VCR controls. These buttons are used to move the timeline cursor around on the timeline and to control playback and recording in a project. A few transport controls are also available in the Explorer and Chopper windows (defined later). 

The Chopper window is a special tool that is used to perform precise trims of media files and insert the trimmed portion into the timeline. The advantage to using the Chopper to trim events is that you can trim an event in more detail in the Chopper window without zooming in on the project timeline. There are also a number of other tools in the Chopper window that make trimming easier. 

To view the Chopper window, from the View menu, select Chopper or press Alt+2. The Chopper window displays the entire media file of the selected track. Click on a different track to load a different media file into the Chopper. To trim and insert events into the timeline using the Chopper ... 

The various regions can thus be inserted into the loop region using the Chopper window ... 

The Chopper window can be used to insert regions (takes) into the timeline. 

Fig. 10. LS photometer60 for use at = 1086 nm A - laser, B - lens, C - shutter, D -rotating chopper, E - shutter, F - entrance window, G - thermostat vessel, H - metal shield, I - shutter, J - thermostat liquid, K - cylindrical LS cuvette, L - light trap, M - shutter,...

A remarkable adaptation of technology borrowed from another analytical method was demonstrated for an electrospray ionization (ESI) IMS instrument ion injection to a drift tube was achieved through modulation with a mechanical chopper as found in atomic absorption spectrometry. The chopper was a disk with a small hole that would align with the source and drift tube and would operate as an ion injector. The disk had a second window that was used with optical sensors to synchronize ion injection and drift time, and ion injections were made at pulse rates of 5 to 200 Hz with pulse widths of 200 to 500 ps. 

These shortcuts allow you to navigate the timeline without using the mouse. Many of these shortcuts also work in the Chopper and Track Properties windows. ... 

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