Audio Screeching on Playback

[2Dogs]

Applied the patch but I still have the same problem, glad it worked for you.

Just to be sure, you do mean the recent 27,673 KB UVS11_Patch_Eng.exe and the 55,218 KB UVS11_Plus_ESD_ENG_PowerPack.exe?

I also believe the business with re-installing the older Quicktime is a red herring - I'm using the latest 7.3 version, with no problems that I'm aware of.

If you have indeed applied both of the above patches, as opposed to the "Kodak patch" mentioned earlier in the thread, then I might conclude that it's a Vista thing - but I'd be surprised if that were the case. Ulead/Corel would surely make the patch work with Vista, since it will obviously become increasingly relevant as more people use it/find it on new pc's.

[Black Lab]

Ulead/Corel would surely make the patch work with Vista, since it will obviously become increasingly relevant as more people use it/find it on new pc's.

Oh, were you serious?

[2Dogs]

Ulead/Corel would surely make the patch work with Vista, since it will obviously become increasingly relevant as more people use it/find it on new pc's.

Oh, were you serious?

On reflection, that Vista part does sound unlikely! Except that it will probably be increasingly difficult for pc buyers to get a new pc without Vista. Microsoft recently demonstrated how hackers could take over an XP machine in less than 6 minutes, and contrasted that with the improved security features of Vista. Trouble is, the XP machine was hooked up to a wifi connection with no encryption, the XP was SP1 and there was no anti-virus, firewall or anti-spyware software installed. So a bogus test really. The significant thing is that Microsoft were in effect rubbishing their own product, formerly touted as the greatest thing since sliced bread.

This, however, doesn't have too much to do with the problem!

[Black Lab]

I was actually referring to Corel making the patch work.

[Pavman]

Applied the patch but I still have the same problem, glad it worked for you.

Just to be sure, you do mean the recent 27,673 KB UVS11_Patch_Eng.exe and the 55,218 KB UVS11_Plus_ESD_ENG_PowerPack.exe?

I also believe the business with re-installing the older Quicktime is a red herring - I'm using the latest 7.3 version, with no problems that I'm aware of.

If you have indeed applied both of the above patches, as opposed to the "Kodak patch" mentioned earlier in the thread, then I might conclude that it's a Vista thing - but I'd be surprised if that were the case. Ulead/Corel would surely make the patch work with Vista, since it will obviously become increasingly relevant as more people use it/find it on new pc's.

Yes, I did use the exact patches you spoke of. I wet ahead and purchased QT pro and it still does not work unless I recode and re-insert the clip in the projects. This would not be a big deal on a new project but I have a large project already set to go. I am wondering if VS has the images pre-rendered and the cache needs to be cleared??

[2Dogs]

I went ahead and purchased QT pro and it still does not work unless I recode and re-insert the clip in the projects.

Why aren't you simply inserting the original .mov clips in your project? If you don't do that, you will end up re-encoding them, which will cause a further drop in picture quality.

Unfortunately, my understanding is that without the patch, the problem is not just with playback of the files, it is that the audio has been corrupted when you've encoded them - so your choices are limited to using the original clips on your timeline as I would suggest, or re-encoding them (having applied the patch and update) before inserting into your project.

Your workflow sounds a little odd. If I'm working with a lossless format such as DV avi, I often trim clips before inserting them in the timeline - but I would not do this for lossy formats. Are you following the "suggested workflow"?

[Pavman]

I went ahead and purchased QT pro and it still does not work unless I recode and re-insert the clip in the projects.

Why aren't you simply inserting the original .mov clips in your project? If you don't do that, you will end up re-encoding them, which will cause a further drop in picture quality.

Unfortunately, my understanding is that without the patch, the problem is not just with playback of the files, it is that the audio has been corrupted when you've encoded them - so your choices are limited to using the original clips on your timeline as I would suggest, or re-encoding them (having applied the patch and update) before inserting into your project.

Your workflow sounds a little odd. If I'm working with a lossless format such as DV avi, I often trim clips before inserting them in the timeline - but I would not do this for lossy formats. Are you following the "suggested workflow"?

Sorry about the confusion. I already have the original clips, mostley taken from a Panasonic Lumix still camera in .mov mode. These clips play fine when you play the "Clip" in VS 11 but when you play the "Project" in preview or final mode the popping or screeching happens. If I take the original clip and re-encode it using QT pro and insert it in the timeline the problem is fixed.

My question is, do I have to delete all of the clips from my timeline, close video studio and perhaps re-boot or something then re insert the original clips in VS for them to be re-encoded by VS? I am just thinking that since the problematic clips are already in the project or library VS is using the cached clips that it rendered earlier.

[2Dogs]

I think it would be sensible to reboot, just to be sure that the patches have been applied. Lately, I've been in the habit of letting one of my laptops stayed booted up but just hibernating overnight - I almost have to force myself to reboot it periodically.

When you reboot, perhaps you might try outputting a test part of your project to an mpeg-2 file (if DVD is your intended output format) and check that in your media player of choice to see if the audio problem is there. With the patch, you should be able to edit the original Panasonic .mov files - it certainly works on my pc with footage from a range of different Panasonic cameras. I have integrated sound with Realtek AC 97 audio. You might also check for the latest sound drivers, if you haven't already done so.

I did wonder why you'd shelled out for QuickTime Pro.

[2Dogs]

I just checked project playback of a Panasonic .mov file in a test project.

I was quite surprised that it's not great! The video stutters, and there are regular clicks!

There is no problem with the output from the project, however. So it would appear that the recent patch has fixed the audio encoding problem, but there remains a problem of playback of the .mov files within the project.

So you should definitely try some test output. and maybe Ulead/Corel will eventually come up with a new "flying pig" patch to fix this!

I have to qualify the above by saying that I did my test on this slowish Celeron M laptop, with a couple of Firefox tabs, e-mail and anti-virus running.... which is not my normal M.O.

[Pavman]

I just checked project playback of a Panasonic .mov file in a test project.

I was quite surprised that it's not great! The video stutters, and there are regular clicks!

There is no problem with the output from the project, however. So it would appear that the recent patch has fixed the audio encoding problem, but there remains a problem of playback of the .mov files within the project.

So you should definitely try some test output. and maybe Ulead/Corel will eventually come up with a new "flying pig" patch to fix this!

I have to qualify the above by saying that I did my test on this slowish Celeron M laptop, with a couple of Firefox tabs, e-mail and anti-virus running.... which is not my normal M.O.

I will give it a try this weekend, thanks for your suggestions and help with my issue. I will post my results when able - I am out of town today.

[Pavman]

I just checked project playback of a Panasonic .mov file in a test project.

I was quite surprised that it's not great! The video stutters, and there are regular clicks!

There is no problem with the output from the project, however. So it would appear that the recent patch has fixed the audio encoding problem, but there remains a problem of playback of the .mov files within the project.

So you should definitely try some test output. and maybe Ulead/Corel will eventually come up with a new "flying pig" patch to fix this!

I have to qualify the above by saying that I did my test on this slowish Celeron M laptop, with a couple of Firefox tabs, e-mail and anti-virus running.... which is not my normal M.O.

I will give it a try this weekend, thanks for your suggestions and help with my issue. I will post my results when able - I am out of town today.

Well I did try to output the project again with the patches and QT pro now installed and I still have the popping sound issues. I then deleted a few of the .mov clips from the project and then re-inserted them in the timeline. This is the strange thing, the re-inserted clips previewed in "Project" preview perfectly, then when I added more clips and tried the "Project" preview again some of the newly inserted clips that just worked moments earlir started popping again. I have several .mov clips in the project from the same camera, same day etc.. that work just fine - VS is just picky and does this randomly.

Originally I wanted to avoid several hours of work in converting the original clips in QT to another format and re-inserting and editing them in the project; however, it appears that it may have been the faster route anyhow.

Thanks to all for the suggestions and the help; however, it seems that this is a bug. Hopefully VS developers lurk in these posts at times and will care enough to acknowlledge and fix the problem in the future. I hope today's Corel is a different company than that of the Corel Draw era, if not VS will not last in the marketplace.

[2Dogs]

Hi pavman,

sorry to hear that after applying all the patches you're still experiencing problems.

You might try to do some tests with an increasing number of different file formats on your timeline, in order to isolate what might be causing the problem, starting off with just some .mov clips. Do make sure to check playback in something other than VS though - Media Player, for example, or your favourite software media player. After all, your goal will be to produce output for playback on another device, for example a standalone DVD player or even another pc, rather than on your pc within VS.

For my own part, I've tried outputting to mpeg-2 with a mixture of colour clips, .mov files from my Panasonic FZ8, mpeg clips rendered fro miniDV avi originals, and miniDV avi clips captured from my camcorder, various filters and transitions, all without audio problems in the output file. I've been using the widescreen clips from the Panasonic, which are 848 x 480. Perhaps it is a Vista-related problem.

Playback within VS in "Project" mode does remain problematical, however, which indicates something is not right. When I click on a .mov file thumbnail in my library, it also takes a significantly longer time for VS to "take" than it does when clicking on a similar sized mpg clip.

So it would seem that there are still things to be fixed, even in XP.

[Pavman]

Since I am now using QT pro to "export" all 85 .mov files from my panasonic to .mov files from Apple, I got to wondering. Should I export them as mpeg4 or somethiing else instead. Any comments before I go to work on this task?

[2Dogs]

Since I am now using QT pro to "export" all 85 .mov files from my Panasonic to .mov files from Apple, I got to wondering. Should I export them as mpeg4 or something else instead. Any comments before I go to work on this task?

As a general rule, it's best to re-encode files as little as possible in order to maintain the highest picture quality. Therefore it really depends on your intended final product. Let's say that it is going to be a DVD, for playback on a standalone or set top DVD player. In that case, the final format would be DVD compliant mpeg-2. Since Quicktime doesn't encode to that (to the best of my knowledge) you should try to encode it to mjpeg, which is the format of the original Panasonic files. Using mjpeg compression, each frame of the video is compressed, much like a jpg still image, without any dependence on any other frames. It's a very editable format. mpeg-4, by contrast, uses groups of frames, and is not as well suited to editing. I don't think you should encode to mpeg-4.

In the end, you should do your own practical tests on a sample file or files and decide what works best for you.

[Pavman]

Since I am now using QT pro to "export" all 85 .mov files from my Panasonic to .mov files from Apple, I got to wondering. Should I export them as mpeg4 or something else instead. Any comments before I go to work on this task?

As a general rule, it's best to re-encode files as little as possible in order to maintain the highest picture quality. Therefore it really depends on your intended final product. Let's say that it is going to be a DVD, for playback on a standalone or set top DVD player. In that case, the final format would be DVD compliant mpeg-2. Since Quicktime doesn't encode to that (to the best of my knowledge) you should try to encode it to mjpeg, which is the format of the original Panasonic files. Using mjpeg compression, each frame of the video is compressed, much like a jpg still image, without any dependence on any other frames. It's a very editable format. mpeg-4, by contrast, uses groups of frames, and is not as well suited to editing. I don't think you should encode to mpeg-4.

In the end, you should do your own practical tests on a sample file or files and decide what works best for you.

Gotcha, learning as I go. I have been exporting them as the same file type as the original ".mov", I don't know of any lossless way to fix the sound problem. QT export defaults to H.264 compression???? so that is what I have been using although there are several options available. Should I keep the files in .mov format??