Random (?) 1-second audio dropouts on .TS conversion
Posted: Thu Jan 22, 2009 10:48 pm
I have received a message from a user who is having difficulty registering. While I am assisting him to rectify that, I am posting his problem in the hope that someone might be able to assist.
[/quote]The problem in short: Under VideoStudio I seem to have random (?) approximately 1-second audio dropouts during conversion of an edited .TS file irrespective of output format.
Some more info....
Longtime user of VideoStudio... love it. Done a bunch of holiday movies in it (version 11.5) without major complaints (apart from MP3 volume upon conversion to DVD format under 11.5 which is covered in other posts).
I'm currently running Pro X2 version 12 with the (stickied) November patch installed.
Recently purchased a BeyonWiz DP-S1 as a TV recorder/media player... upgraded its firmware to current, setup wireless access from it to the PC and thought what the heck - let's transfer a program from it to the PC and then edit it under VideoStudio to remove the ads and convert it to divx (basic structure is 512x288 resolution, 900kbps video and 128kbps/48Khz audio to create a 350MB file) so my young fella can watch it at his leisure on his portable Cowon A2 PMP.
VideoStudio opens the .TS file without drama and lets me edit it. However, no matter if I use SHARE to convert it to a divx avi, an xvid avi or to a .mpg file (and then later convert it from mpg to divx outside of VideoStudio) there are always approximately 1-second audio dropouts at the same particular timepoints. Having listened to the entire 47 minute file(s) many times the noticeable dropouts (I may have missed some that just happened to occur in a quiet moment) occur at timepoints 5:14, 13:41, 18:54, 24:31, 28:20, 33:58 and 41:02. No matter what audio/video options I tweak in the divx/xvid settings (although I did read and follow initially the conversion guides listed here before trying a few other options) this occurs and also occurs in the .mpg file as well.
These audio droputs do NOT occur on the original raw recording on the BeyonWiz nor in the playback of the original or edited .ts file, either inside the VideoStudio preview window or through an external .ts player.
Searches of this website have not turned up anything of note so far although at one point I did try turning off SmartRender within VideoStudio (without effect) based on one thread I read.
So, grasping at straws, I decided to download the trial version of VideoReDo TV Suite and also requested a trial key from them to temporarily unlock full functionality so I could look at the full edited 47 minute output from it (6 minutes only otherwise). I took the original .TS file that I had previously loaded into Video Studio and remade my commercial removal edits and saved it as a .mpg (it can't convert direct to divx in the product) which I then converted to a xvid avi as before external to VideoStudio. Both of these files upon playback show no evidence of the audio drops that I was experiencing under Video Studio so I can only assume something's going wrong inside the VideoStudio product.
Now... I LIKE VideoStudio... I'm comfortable with it for my projects and would like to continue using just this one tool to perform all our video editing needs. Having successfully seen another product perform the edit and conversion I'd like to see this issue resolved rather than going another route or using some other complicated "use this product to split stuff then use that to edit stuff and then use this to remux it all together" routine (so please don't suggest that).
I do see one of the bullet points of the latest patch does indicate "H.264(MPEG-TS) Audio now plays correctly" and I restate - the audio playing inside of the VideoStudio project window of my edits plays perfectly. It only exhibits this anomaly upon conversion in the output file.
For the record I have NO transitions between any of my edits... they are all direct cuts. Also, the places at where these short audio dropouts occur in the converted video do NOT appear anywhere near the commercial break splices... in fact I can't discern anything that gives me a clue as to why they occur where they do.
I'm also on recent versions of the xvid and divx codecs (I renamed the divx dll that came inside of VideoStudio) although that shouldn't affect the .mpg output anyway.
Anyway... none of this explains the discrepancy between the VideoStudio and VideoReDo TV Suite output so I'm left wondering about other people's experiences with editing .TS files under VideoStudio. There's no video/audio lipsync issues in either product's output... just the "random" 1-second audio dropouts in the VideoStudio version.
The only thing I haven't yet tried on a whim and a prayer (and I don't see how it'll help but I give it a go tonight) is ensure I am on the latest directX patch update (I'm on directX 9.0c, and up-to-date with all Windows XP patches).
Any thoughts or anyone else verify that this situation also happens for them?