Recently added AcornTV on demand - video is jerky for all programs -

M

Mitch-R

Guest
#1
Just added Xfinity AcornTV after using AcornTV.com to stream. The image is much sharper, but any program I watch has a regular jerk once per second. When anything is moving, items and people take a jump in position that is jarring on the eyes.

Most of the Acorn material started as either UK, Australian or NZ programming created with either 25 frames/second or 50 fps. The Xfinity feed is reformated to 29.97 fps and appears to be dropping frames to achieve the new frame rate, rather than blending all the frames to the new rate.

Xfinity seems to be using most of the original frames, so movement is smooth, then decides to drop a bunch of frames to get back in sync. If the missing frames show something moving - oh well!

Examples of the Xfinity/Acorn on-demand with this issue would be Agatha Raisin, Doc Martin, Good Karma Hospital and Brokenwood Mysteries. All have been converted poorly to 29.97fps and have the 1-sec jerk throughout each episode.

The streaming from AcornTV.com for all the programs and episodes listed above is the proper 25fps rate and motion is very smooth when viewed on the same tv.

The only reason I'm trying Xfinity's version is that it is Acorn keeps the bitrate for their streaming quite low to reduce bandwidth and the Xfinity image is sharper - at least the frames that aren't missing.

Can you get anything done on Xfinity's end or suggest a solution? Otherwise will switch back to streaming and live with the reduced clarity over 60-90 minutes of jerking.

"Recently added AcornTV on demand - video is jerky for all programs -," is about XFinity-Comcast TV Television and On Demand.

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