You can set the following preferences in the  category of the  window.
         
          
              
            
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                      Specifies playback range start and end times. The playback start and end times specify the  playback range. The playback range is always within the animation range. You can also specify the time units. See Edit animation preferences in the Animation Basics chapter of the Animation guide.
                      
 
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                      Specifies animation range start and end times. The animation start and end times specify the Range Slider range. The playback
                        range always stays within the animation range, so changing the animation start and end times can also change the playback
                        start and end times. Default animation start time is 1.00. Default animation end time is 48.00. You can also specify the time
                        units. See Edit animation preferences in the Animation Basics chapter of the Animation guide.
                      
 
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                      Specifies the  height (the vertical space it occupies). Increasing the height is especially useful when you are working with sound. Double
                        or quadruple the height for a better display of sound waveforms. Click 1x (normal height), 2x (double height), or 4x (quadruple
                        height). Default is 1x.
                      
 
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                      Specifies how the line markers that indicate keys appear on the . Click , , or . Default is Active.
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                                 Specifies that key ticks are not displayed. Selecting None is useful if you have a lot of keys and want to improve workspace
                                    selection performance. 
                                  
 
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                                 Specifies that key ticks are displayed, with associated keys available for selection and editing. 
                                  
 
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                                 Specifies that key ticks appear only for the currently selected channels in the . This is useful if you are using the  to edit keys on particular channels of an animated object. 
                                  
 
 
 
 
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                     Change the thickness of ticks that represent keyframes in the Maya . Key thickness is measured in pixels. The minimum key thickness is 1 pixel and the maximum is 63 pixels.
                      
 
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                     Options include  and .
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                                 When on, Maya displays the current time in video standard timecode. The current time is displayed next to the Current Time
                                    Indicator in the . Default is off.
                                  
 
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                                 When on, Maya steps through animation times by integer values, snapping to the nearest integer. Default is on. If working
                                    with sound or small time ranges, you can turn off  for smoother scrubbing.
                                  
 
 
 
 
 
          
              
            
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                      If your workspace layout includes several views (for example, selected from ), you can improve performance by having the scene play in only the currently active view. Click  or . Default is .
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                                 Scene plays only in the current, active view.
                                  
 
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                                 Scene plays in all the workspace views.
                                  
 
 
 
 
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                      Specifies what happens when the scene plays forward and then reaches the playback end time (or if playing backwards, the playback
                        start time). Click , , or. Default is.
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                                 Specifies that the scene plays once and then stops. 
                                  
 
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                                 Specifies that the scene plays forwards (or backwards) and then plays backwards (or forwards) until you stop playback. 
                                  
 
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                                 Specifies the scene plays forward to the playback end time (or plays backward to the playback start time) and then begins
                                    again at the playback start time (or playback end time) until you stop playback. 
                                  
 
 
 
 
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                      Specifies the speed at which your scene plays. Select, , , , or . Default is .
                      You can also specify the playback time units. See Edit animation preferences in the Animation Basics chapter of the Animation guide.
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                                 When selected, all the frames in your scene play, updating each before displaying the next. The speed depends on how long
                                    it takes your workstation to compute and draw each frame. You can specify the playback frame increment in the Playback by
                                    field. For example, a Playback value of 2.0 will cause only every other frame to play.
                                  
 
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                                 When selected, your scene plays in real-time or 24 frames per second (fps). Maya may not display all frames, depending on
                                    your workstation’s capabilities, the scene’s complexity, and the display mode (for example, wireframe or smooth shading).
                                    
                                  
 
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                                 When selected, your scene plays at half the speed of real-time or 12 frames per second (fps).
                                  
 
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                                 When selected, your scene plays at twice the speed of real-time or 48 frames per second (fps). 
                                  
 
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                                 When selected, your scene plays at the custom playback speed set in the Other Speed field.
                                  
 
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                                 Specifies a custom playback speed (in frames per second) for your scene. For example, if you specify an Other Speed value
                                    of 72, then your scene’s animation will play back at 72 fps. This field is only available when you select Other from the Playback Speed drop-down list.
                                  
 
 
 
 
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                      Specifies playback increments if is set to . For example, if you enter 4, Maya will play only every fourth frame (or time). Default is 1.000. You can also specify the
                        playback time units.
                      
 
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                       clamps the playback speed of your scene’s animation by specifing the speed that your scene’s animation playback is not allowed to exceed. This is useful when working with scenes that have fluctuating levels of heavy CPU activity, such as a
                        scene with a complex particle effect.
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                                 Specifies that the overall playback speed of your scene’s animation is as fast as possible, but it does not exceed 24 fps.
                                  
 
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                                 Specifies that the overall playback speed of your scene’s animation is as fast as possible, but it does not exceed 12 fps.
                                  
 
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                                 Specifies that the overall playback speed of your scene’s animation is as fast as possible, but it does not exceed 48 fps.