VS10 Sound Problem on playback

Eugene · Post by **Eugene** » Sat May 06, 2006 4:01 pm

I have a sound problem in VS10 plus.

When I playback clips in 'clip' mode, the sound is fine. When I playback clips in 'project' mode I get a lot of crackling (breakup). If I go on to generate an mpeg file from the share menu, the sound is a lot better, but still crackles.

All my editing is done from PAL mpeg2 (not AVI), as I have a DVD Camcorder.

I had VS9 previously, and never encountered this one.

Any assistance appreciated.

GeorgeW · Post by **GeorgeW** » Sat May 06, 2006 4:05 pm

Do you have 5.1 audio enabled or disabled?

Which version of VS10 -- Trial or Full version?

Which DVD Camcorder, and are you using the "Import from DVD" function, or capturing some other way?

Does your DVD Camcorder record Dolby Digital audio? if so, 5.1 or stereo?

Regards,
George

Eugene · Post by **Eugene** » Sat May 06, 2006 4:12 pm

George,

Do you have 5.1 audio enabled or disabled?
I've tried both and it's the same

Which version of VS10 -- Trial or Full version?
Full Version

Which DVD Camcorder, and are you using the "Import from DVD" function, or capturing some other way?

It's a Sony DVD-203, and I have the same problem if I 'import from DVD' straight off the 8cm DVD, or import the mpg files created using Sony's own software (Pixela)

Does your DVD Camcorder record Dolby Digital audio? if so, 5.1 or stereo?
It has both, but all my tests are using Dolby Digital 2.0

When I generate the final mpeg, I am matching the settings from the original camcorder recording (e.g. 9100Kbps, Dolby Digital 2.0, 25fps etc)

Thanks.

GeorgeW · Post by **GeorgeW** » Sat May 06, 2006 5:02 pm

In Preferences (F6), what do you have for settings (Playback, preview, etc...)

I'm not sure what the problem is, can you load a small test clip somewhere that consistently gives you a problem? Maybe there's a conflict in the Dolby Digital audio between the Sony Cam and VS10

Regards,
George

Eugene · Post by **Eugene** » Sat May 06, 2006 5:20 pm

In preferences I have 'instant playback', if I change it to 'High Quality', when I playback I get the message 'High Quality Mode is disabled with current project settings' ??

The sound problem is consistent. If I put the same clip each time I test onto the timeline, the sound breakup occurs in exactly the same place (in 'project' mode playback)

Thanks.

Post by **Ken Berry** » Sat May 06, 2006 10:23 pm

You say the problem also occurs with files captured using Pixela. But does the sound also break-up when you play back those files in Pixela? If so, then it sounds more like a hardware problem and likely to be linked to your camera.

Eugene · Post by **Eugene** » Sun May 07, 2006 12:20 am

No, it's fine when I play back through Pixela, and even ok when I play back in VS10 in 'clip' mode (i.e. when it's just playing the native mpeg). The problem only occurs when VS10 has to actually process the content, e.g. when seleting 'project' before playback when editing, or after creating an mpeg from the 'share' section.

Also worth noting that I never had this problem at all in VS9.
Thanks.

Ilene · Post by **Ilene** » Sun May 07, 2006 1:35 am

I've often had the problem you describe with VS9....My music breaks up on playback in project mode, however it always burns/renders perfectly. I find that it most often happens when I am making a lot of volume changes to a soundtrack, and/or I'm stopping and starting the project playback a lot as I'm editing each frame. I was sort of blaming it on MCE or perhaps my computer not being able to keep up...the music generally plays choppy and eventually clears up on it's own....but like I said, it ALWAYS renders perfectly fine, so I don't worry about it. I know this doesn't help your problem, but at least you know, you are not the only one to experience it! Good Luck! Ilene

Mike-Mat · Post by **Mike-Mat** » Sun May 07, 2006 4:25 am

Ditto - What Ilene said. I saw the same thing. Crackling the audio for the Project, but good audio for the Clip. It always seems to create good audio on the final output project.

Mike Mattera

Eugene · Post by **Eugene** » Sun May 07, 2006 3:18 pm

Ok,

I've done a few more tests, tried adjusting the settings for the output mpeg, doesn't seem to make any difference. In summary:-

- 8cm DVD from Camcorder played directly - sound fine
- MPEG content imported from Camcorder DVD, using Pixela, played in Windows Media Player - sound fine
- clips played in VS10 plus, in 'clip' mode (imported straight from DVD, or from Pixela generated MPEG) - sound fine
- clips played in VS10 plus, in 'project' mode - lots of crackle/breakup
- MPEG created from VS10 plus - better, but still come crackle
- DVD created from VS10 plus - better, but still come crackle

wh5916 · Post by **wh5916** » Mon May 08, 2006 12:17 am

Eugene wrote:Ok,

- MPEG created from VS10 plus - better, but still come crackle
- DVD created from VS10 plus - better, but still come crackle

This sounds similar to an issue that I had with the preview version of VideoStudio 10. On my own system (2.6 ghz P4, 1.5 gbytes of RAM, AIW Radeon 9600 video card, roughly 110 gbytes of free hard drive space on the drive assigned to Ulead), VideoStudio 10 could not create a DVD from its own source files that wasn't plagued with an intermittent popping type of noise in the completed audio. The source files sounded fine upon playback, the problem was in the completed DVD files.

I finally managed to create a decent DVD with VideoStudio 10, but to do so I had to edit/create the MPEG-2 files using VideoStudio 8. Using those files as source material, VideoStudio 10 created a decent DVD with very nice menus and perfect audio...after this experience though, I'm very hesitant to make the purchase.

Mike-Mat · Post by **Mike-Mat** » Mon May 08, 2006 12:37 pm

Well I just finished a project with 4 projects merged into 1 Disc. Now that I take a closer listen to it..... Yes, I can tell there is a loss of audio quality.

Does a representative of Ulead monitor this forum for problems?

Where should this be reported?

Mike

Post by **Ron P.** » Mon May 08, 2006 1:30 pm

Mike,

I posted this in the VS10 Private section, with attention to Vinson Chien, the PM for VS10.
What you can do, since you have a registered version is go to Ulead's website and complete a Tech Support form. Don't email, use the form on the website. I would have done this, however as you know the way their website is laid out, you have to be a registered user of the product before you can pose a Tech support issue, and I don't have mine yet...

Ron P.

Eugene · Post by **Eugene** » Mon May 08, 2006 1:52 pm

I've logged this through the ulead website's technical support. The first response I received suggested that I ensure that my MPEG output settings match the input MPEG files (e.g. VBR 9100kbps, 250kbps sound etc). I reported back that I tried this, but still have the problem, and I'm now waiting for their response (this was quite a few days ago now though).

Thanks.

GeorgeW · Post by **GeorgeW** » Mon May 08, 2006 1:53 pm

Hi,

Take a look at your work flow, and describe the audio format all the way through -- from original capture (i.e. original format), through each step of your work flow. Is there any possibility the audio is being re-encoded multiple times ?

Does this happen when the original audio is already compressed (i.e. either Dolby Digital or mpeg audio from the start)?

And are you modifying the audio in any way -- applying audio effects, sound levels, etc...

Regards,
George