Autodesk 64006-051108-9001 User Guide - Page 249

Troubleshooting Common Problems and Solutions Hardware Codecs •Make sure that you do not have multiple movies open at one time. Certain hardware codecs may use the capture card to display video. If more than one movie is open at a time, the card must support all movies simultaneously and could possibly crash. Make sure that you don't have a movie open in the background with another application such as Premiere or QuickTime Player. •Make sure that you have the latest version of the codec and drivers and that you are not running your capture hardware on an unsupported configuration. Please see the capture hardware vendor's documentation for more details. Image Quality Problems •If the movie periodically gets blurry, then sharp again, or vice versa, you may have the Temporal/Spatial quality sliders set too high or low. •When using the Apple Animation codec, use the keyframe Quality Balance slider to balance the keyframe and delta frame quality. Otherwise, set the Spatial slider in the Encode tab of the Settings window to a lower setting if the keyframes are sharp and the delta frames are blurry. Use a higher setting if the opposite is true. •If you are making low-data rate Web movies, make sure that you haven't allocated all the data rate to the audio. This is easy to do if you aren't careful. Also, be sure that you know what data rate units you are using. If you are expecting KiloBytes but are specifying kilobits, your movies will look substantially worse. See "Video Data Rate" on page 184.