Please note that a sound card is required in order to have smooth video playback (even without using audio in the project). You can double click on the sound card to determine the driver information in the same fashion as the video card. In Device Manager the sound card is displayed in the Sound, video and game controllers section. The process for the sound card is very similar. Now click the Driver tab and you will see all the driver information including Driver Provider and Driver Date. To determine the manufacturer and date of the video card driver, double click on the video card name. To determine what video card is on the system, click the plus sign in front of Display Adapters in the Device Manager list. Next, select the Hardware tab then click the Device Manager button. To get to Device Manager by right click on the My Computer icon and select Properties. Make sure that you have the latest sound and video card drivers loaded from their manufacturer's websites.ĭetermine what sound and video card is on the system by checking in Device Manager. 4:3, interlaced), it would be best to add video clips in that same format. ![]() For example, if the project format is set to NTSC Standard (720 x 480, 29.97 frames/sec. If the size or frame rate do not match, the performance might be much worse than it could be. Make sure that the media in the timeline matches the timeline format. Repeat this until all Hardware Acceleration settings have been tried. If it has not, close Studio again and move the slider one more notch to the left. Try adjusting it one setting lower, then restart Studio and see if the performance has improved. In this settings window there is a horizontal slider that allows the adjustment of the hardware acceleration setting of the graphics cards. Next go to the Windows START button - Control Panel - Display - Settings - Advanced - Troubleshoot. Try lowering the hardware acceleration for the graphics card. To do this, simply uncheck the Enable background rendering checkbox. It may also be helpful to completely disable background rendering. An easy way to identify if background rendering is occurring is the appearance of a green bar at on the timeline at the point where the rendering is taking place. If background rendering is still occurring, the project will not play back smoothly. If this option is selected, before preview the project, make sure that background rendering has fully completed. In the background rendering section is a setting called Enable background rendering. Within Studio go to Setup -> Video and audio preferences. You need to restart Studio in order to take effect. ![]() Try ticking and un-ticking both of these options to see if any combination of these settings has an effect on the preview problem. In the video preview section of these settings are the following checkboxes: Within Studio go to Setup - Video and audio preferences. ![]()
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