Over the last couple of weeks, some people have reported issues in regards of audio synchronization (lips dont match the spoken words) with some HTC phones running WIndows Mobile, such as the HD2.
The problem lies in the phone. Playing the video files on anything else (tip: use Quicktime on a PC to verify your files) results in perfect sync, however when the same file is played on a HTC HD2, the audio does not match up to the video. Looking around on the web, I found a couple of reviews as well as a few forum-threads on this issue, including a variety of different things people have tried.Different conversion tools, different video players (TCPMP, CorePlayer etc) all resulted in the same problem.
The only solution that resulted in watchable video is to encode video is to force the audio to start a quarter of a second later than the video, and when this is played on the device itself, it lines up better.
I am currently in testing with a few DVD Catalyst users to work out the specifics, and the next update will have an option to adjust this, however, I have to stress that this is a method I personally do not like. Files created with this adjustment will only play properly on the affected devices, and can not be used for anything else. I use my converted files as a backup, and often load a couple of movies from my collection onto a netbook so I can view them when I have to go somewhere. With this solution, they will only be useful on the phone itself. In various forums, people mentioned that they contacted HTC with the issue, and some reported receiving a confirmation of the issue, and that they are “working on it” while others reported that “no issue was found by the support engineers”
Either way, a solution is in the works on our end, but, if you do use your phone for video playback, and have a chance to change it out for a different model, I’d suggest to do so.
For your convenience I converted a movie trailer (Robin Hood) to HD2 format.
The zipfile contains 2 MP4 video files, one converted normally (plays fine on the computer in QUicktime) while the other has the HTC audio fix applied to it.
http://www.tools4movies.com/HTC/robinhood.zip
One of the disadvantages that comes from releasing new phones on a monthly basis is that the support from these companies is not the greatest. Due to the amount of different models, it’s hard for a company to address each issue for each phone
