video plays fast

[vyseman15]

i have 2.9 r3 i think i fixed the video speed by changing the synch.parameter to 263 which is the highest. but the sound is fast and they sound like chipmunks! no matter what i put for the audio parameter, its still fast

[djflexmaster79]

What kind of blabbering bullshit is that????


Give us some info on what your doing?

DJ
Site Mod

[vyseman15]

basically one piece is playing at an incredible speed. i tried changing the parameter number that are found by going to display settings, then advanced settings. which sorta slowed the video, but the audio is still playing fast.

[dlanor]

basically one piece is playing at an incredible speed. i tried changing the parameter number that are found by going to display settings, then advanced settings. which sorta slowed the video, but the audio is still playing fast.

There are three different synch parameters on that page, and you only mentioned one of them, so that is one problem right there.

Normally, with traditional video modes, these parameters should need no changes. As the timing of these modes is not so critical the default values should work fine. But for use with the higher resolutions of HDTV modes they normally do need considerable adjustment.

Btw: These parameters are maintained separately for each video mode, so adjustments made for one video mode will not affect (thus ruining) any other video mode.

Exactly which video modes are you using, and what are your three synch parameter values for each such mode at present ? And what is the current visual quality for those modes ? (Just the modes you really want to use please.)

For example, with my own Panasonic HDTV set and running SMS in the video mode HDTV 1080i, I get good results with synch parameters 1 through 3 having values of 506, 506, 480, respectively.


However, I really don't think that the problem you are having is related to those synch parameters, as they relate only to the physical playback medium, and how pixel and audio data is rendered to it. Your problem seems more related to how the encoded video format is interpreted for playback, and that is an entirely different issue. Considering my own results with SMS over the years I strongly suspect that the video you tried with that horrible result is in fact erroneously encoded. You might be able to fix that by recoding it through VirtualDub or similar tools.

NB: Such encoding errors are often hidden in playback with PC media players, which can sometimes detect an anomaly in the match between audio and video playback speed, and then force both to use the more reasonable one. Basically this is an intentional malfunction of the player, refusing to use the encoded speeds which are mismatched. But SMS is more obedient, and really tries to use the encoded speeds even if those are incorrect, which leads to a bad result. And since those who make such files don't notice the error with those PC players, they seldom bother to correct it. So if you want it fixed you will probably need to do it yourself.

Best regards: dlanor

[vyseman15]

how do I use virtualdub?
is this the right way?
http://ryan.com.br/wp/tutorial-virtualdub-en/

[dlanor]

how do I use virtualdub?
is this the right way?
http://ryan.com.br/wp/tutorial-virtualdub-en/

Yes, from a quick glance that is one of the many ways in which it can be used.
Though he evidently wanted to do if for some other reasons than yours.
Possibly your video too would benefit from the same re-encoding he used.

In many cases when playback acts strange, a simple re-streaming without re-encoding can work wonders. This is done by specifying "Direct stream copy" for both Video and Audio, so that nothing is changed in the packed stream of either one. But the re-streaming still normalizes the interlacing of video and audio streams in a way that can eliminate many problems caused by previous editing of a video by other tools.

Also, since nothing is altered in the encoded data of the streams, this re-streaming is extremely fast, so you can always afford to try it without losing much time. (Assuming only that you have sufficient storage space, as always when working with media files...)

Best regards: dlanor