Favour:Can anyone render this file in VideoStudio

[Old Grey]

I'm trying to prove VideoStudio has a fault. To prove it, could people download this file - a recording from a TV card - and render it in any format you like.

http://www.mediafire.com/?g9jldrys5f564z5

I've tried VideoStudio 11.5(with patches), X4, X5(Pro and Ultimate, with patches), and X6, and everyone of them renders the video with faulty intermittent sound.

The fault is described here, if you're interested, but not a necessary read. I don't want a work around - other programs don't need a work around -, I want to know 100% that Videostudio is at fault.
http://forum.corel.com/EN/viewtopic.php?f=1&t=47364

Just open it in Videostudio, put it in the Timeline, Save It in any format you like, and play the file. If by freak circumstance the sound comes out continuous, instead of every ½ a second, maybe we can trace what you have that I haven't got - I'm pretty sure no-one will get it working, because it's Videostudio that has the fault, and I know that because Sony Vegas had the problem until I installed QuickTime, and Cyberlink worked fine - probably because it installs QT automatically -.

Thanks for any help.

[RobertOZ]

Downloaded the file and as you say, when rendered the audio seems to keep skipping.

Looking at the file with MediaInfo shows that the audio used in the clip is AC-3, that could be the problem, I converted the clip to MP4 using the AAC format for audio, now when rendered the clip plays correctly.

Robert

[Ken Berry]

Ok -- I tried in several formats and variations within them (SmartRender on and off, Dolby 5.1 and 2 channel) in X6. I just uninstalled X5 so couldn't try it in that. All had that audio problem. (Interestingly enough, while the Sample clip you posted showed Properties mostly akin to HDV, it had Dolby 5.1 audio instead of mpeg audio which HDV uses; plus of course that high bitrate. But when I rendered it Same As First Clip, the Properties of the new clip were in fact pure HDV!!!???)

I have no explanation. But I don't think it is because of the presence or absence of Quicktime. I have the latest version of QT installed, and it shows up in X6 and appears to work well. However, when I tried to make .mov of your Sample in X6, the sound problem was there too.

[Old Grey]

Downloaded the file and as you say, when rendered the audio seems to keep skipping.

Looking at the file with MediaInfo shows that the audio used in the clip is AC-3, that could be the problem, I converted the clip to MP4 using the AAC format for audio, now when rendered the clip plays correctly.

Robert

That must be it, because when you right-click properties on the file it says Dolby, but when you go to save it in custom it says LPCM audio - VS is confused -. If the audio is AC-3, it looks like VS doesn't support it.

How did you convert the clip to MP4 with AAC audio?

[Old Grey]

Ok -- I tried in several formats and variations within them (SmartRender on and off, Dolby 5.1 and 2 channel) in X6. I just uninstalled X5 so couldn't try it in that. All had that audio problem. (Interestingly enough, while the Sample clip you posted showed Properties mostly akin to HDV, it had Dolby 5.1 audio instead of mpeg audio which HDV uses; plus of course that high bitrate. But when I rendered it Same As First Clip, the Properties of the new clip were in fact pure HDV!!!???)

I have no explanation. But I don't think it is because of the presence or absence of Quicktime. I have the latest version of QT installed, and it shows up in X6 and appears to work well. However, when I tried to make .mov of your Sample in X6, the sound problem was there too.

I don't know about QT, but I remember Sony Vegas had the same problem - when I tested it 1 year ago -, but a warning sign came up that said I needed QT to render that file. So I instated it, and it worked correctly after that.

[RobertOZ]

To convert the clip, I use Format Factory, probably one of the best free converters available, a word of caution, refuse permission to install the ASK toolbar, you will regret it, if you let it install.

Robert

[lata]

Hi

Strange things going on here

If you right click select properties the data rate is 90000kbps
Yet if you Share Create Video File –Same as first video you get 24464kbps, a more reasonable figure? And no DD 5.1

PAL (25 fps)
MPEG files
24 bits, 1440 x 1080, 25 fps
Upper Field First
(MPEG-2), 16:9
Video data rate: Variable (Max. 24464 kbps)
Audio data rate: 384 kbps
MPEG audio layer 2, 48 KHz, Stereo

But yes I am having problems with this one.

Try playing it with the Sound Mixer on……………

[Ken Berry]

Trevor -- you may not have noticed, but as I said above...

(Interestingly enough, while the Sample clip you posted showed Properties mostly akin to HDV, it had Dolby 5.1 audio instead of mpeg audio which HDV uses; plus of course that high bitrate. But when I rendered it Same As First Clip, the Properties of the new clip were in fact pure HDV!!!???)

And yes, very strange indeed. Moreover, I haven't heard of any recorder like the one he has recording in HDV format instead of one of the AVCHD formats used by many TV stations...

[lata]

Hi

I was able to use a Video Converter program which made a good job of it, so why cant Video Studio do that?

[Old Grey]

Trevor -- you may not have noticed, but as I said above...

(Interestingly enough, while the Sample clip you posted showed Properties mostly akin to HDV, it had Dolby 5.1 audio instead of mpeg audio which HDV uses; plus of course that high bitrate. But when I rendered it Same As First Clip, the Properties of the new clip were in fact pure HDV!!!???)

And yes, very strange indeed. Moreover, I haven't heard of any recorder like the one he has recording in HDV format instead of one of the AVCHD formats used by many TV stations...

It can't be PC DTV card recorder, because 2 different brands do the exact same thing. I have 4 cards ranging in age from old to the lasted models - Leadtek DTV2000H, Compro DVB-T300, Compro E750 and Compro E900F, and I assume they are just recording what they receive.

Ken said MOST TV stations use AVCHD, but it seems one doesn't.
The TV station transmits 3 channels, but only one of them has the problem - actually only VideoStudio has the problem -, and it only appeared 1 year ago - VS could edit it before that -, so I assume the they changed the audio format for that station.

Either way it's not the station, or the cards at fault - because other editing programs can do it -, it's VS that has the problem.

[erdna]

I think this station applies audio bitrate wobbling, a technique known for getting rid of sampling artifacts. VS loses periodically sync (and thus audio reproduction). Frequency modulated digitalisation is basically no problem for playback but known as difficult for editing, digital mixing...Old Grey, I can understand that some NLE's (where the audio bitrate is used as master) can handle these AV files, but can you name some? At least Edius6 doesn't accept the file.

[Ken Berry]

erdna: FWIW, I just loaded the clip into other NLEs I have and rendered it to new formats in them. It worked fine rendered to AVCHD in Sony Movie Studio Platinum 12 and Cyberlink PowerDirector 11, as well as Magix Movie Edit Pro 2013 -- though in the latter there was a short lapse in audio/video sync right at the start (up to the small boy with the corn), but not after that when I rendered it as high def mp4. When I rendered it in Magix to standard def mpeg-2 it came out fine.

So with all the NLEs I have on my system, VS was consistently the worst, regardless of the format chosen.

[Old Grey]

erdna: FWIW, I just loaded the clip into other NLEs I have and rendered it to new formats in them. It worked fine rendered to AVCHD in Sony Movie Studio Platinum 12 and Cyberlink PowerDirector 11, as well as Magix Movie Edit Pro 2013 -- though in the latter there was a short lapse in audio/video sync right at the start (up to the small boy with the corn), but not after that when I rendered it as high def mp4. When I rendered it in Magix to standard def mpeg-2 it came out fine.

So with all the NLEs I have on my system, VS was consistently the worst, regardless of the format chosen.

Thanks Ken, I found the same thing happened.

Now all we have to do is to get VS to support AC-3.

How about we get someone that has bought VS within 90 days of their free warranty, to send the file to Corel and see if they will do a patch for it - adding a remark that other programs can do it -.

[Ken Berry]

I think you are missing something here. VS can certainly handle AC-3, both two channel and 3/2 channel. It has done so since Version 8 (when we had to actually pay $30 to get the Dolby module!) So I am not sure at all that that is the problem. But what is the real problem remains a mystery to me...

[Old Grey]

I think you are missing something here. VS can certainly handle AC-3, both two channel and 3/2 channel. It has done so since Version 8 (when we had to actually pay $30 to get the Dolby module!) So I am not sure at all that that is the problem. But what is the real problem remains a mystery to me...

That's even worse, because if VS supports AC-3 and it is still putting out faulty sound, it must meen that the actual program has a glitch and needs to be fixed.