8 Replies Latest reply on Aug 2, 2009 11:43 AM by the_wine_snob

    AVCHD Video appear grainy "sawtooth" on playback after rendering


      I'm using a Canon VIXIA HG20 AVCHD HD Video Camcorder and have been shooting in 1080/60i with a 1920x1080 Image Resolution at 24Mbps.


      I copied the MTS files on to my dedicated Video drive and opened Elements 7 and started a project using the "NTSC AVCHD 1080i 30" setting.


      Setting states the following:

      - For editing with 1920x1080i AVCHD camcorders.

      - 16:9 interlaced HD video at 29.97 frames per second.

      - 48kHz audio.

      - Drop-Frame Timecode numbering.


      General Editing mode: HD 1080i Timebase: 29.97 fps


      Video Settings Frame size: 1920h 1080v (1.000)

      Frame rate: 29.97 frames/second

      Pixel Aspect Ratio: Square Pixels (1.0)

      Fields: Upper Field First


      Audio Settings

      Sample rate: 48000 samples/second

      Capture Format HDV Capture


      Video Rendering

      Maximum Bit Depth: Off (Also tried with it on)

      Preview File Format: I-Frame only MPEG-2

      Compressor: I-Frame Only MPEG

      Color depth: Millions of colors


      Default Timeline Video tracks: 3

      Stereo tracks: 3


      I added the media files and previewed them i the monitor and also on the timeline and they looked great!


      I then rendered the video (by pressing the Enter key) and noticed the video did not look nearly as good afterwards during playback. The video seems to have "saw-toothed" like pixels on some of the moving objects on playback, such as on the edge of a shirt collar (just an example), yet appears great again when paused.


      I've tried to monkey-around with the settings, yet to no luck.


      Any thoughts about why this is happening and what can be adjusted to correct the issue?


      Thank you, Brandon