Sound echo after creating video file

[Davidk]

Hi,

great that solving it is getting a broader view. If you need a larger file I can supply one - I just picked the 5C file because it was small and would not require a long time to upload. At the time I had not thought about email, so being able to do that turned out to be blind luck.

I think that if you were getting the echo you would know it. Which really has me wondering . . .

You mentioned MPEG optimiser . . . . I haven't used that function before. The selection I've typically used to render a clip or project is Share/create video file/same as project settings, and when the file panels come up, select the save in folder, check the options (normally not, but lately to turn off the play after render function because of the echo) and click OK to get it going.

Compared to that method, why use optimiser (eg is there an explicit benefit of some sort)? Altho I guess there may be an implicit one . . . . no echo.

Davidk

[Davidk]

Hi,

This is the 2nd reply at this point - the 1st one does not seem to have taken (?) and in the meantime I did a bit of testing. So I'll try to combine the to datasets.

1. it's great to see that solving this is getting broader view. And if you were getting the echo on your tests you would know it - its pretty distinctive.
2. You mentioned using MPEG optimiser - I haven't previously used that function. The method I've always used to render a project or a clip is Share/Create video file/same as project settings. When the file panel comes up, select the required file folder to save in and OK. Lately, I've used the edit option to turn off the "play after render" option before selecting OK to get it going.
3. I originally chose the 5C file because it was small and would not take long to upload. That I could do that by email turned out to be blind luck. However I have longer files that exhibit this property if required.
4. The tests I mentioned were on a longer clip file (049, 23 seconds, 27Mb) and compared the results of 2 methods:
a. doing it your way: Share/create video file/MPEG optimiser/select the file folder to save in, and OK: rendered file had no echo.
b. doing it my way: Share/create video file/same as project properties/select the file folder to save in, and OK: rendered file had echo on playback after render.
Both of these rendered files had unique names for reference later.
5. I also deleted the original clip in the project timeline and then inserted as a new clip the rendered files, and just played them. I've mentioned doing this before. But this time, the rendered files retained the original echo (or no echo) effects.
I can send you these 3 files - the source file and the 2 differently rendered output video files if needed. The total would be about 90mb.

Now I'm even more confused. Maybe If we can't identify a cause/fix, a reliable workaround would be good.

Davidk

[canuck]

Please upload the 3 files (separately or zipped) to a free website like "4shared.com". That way others can also have a look a the the rendered file. Perhaps you could even create a "smart package"ofyour setup and upload it. That way we would be testing exactly with your settings.

[Davidk]

Trevor,

Can I use your 4shared location as before for the upload??

Canuck,
Can you clarify what you mean by smart package of my setup?

I haven't made a project file of any single clip that's been under test, and as far as I know all smart package does is put all the components of a project together in one place. If there's only one file, a package seems pointless. So how does X5 setup get into smart package?

Davidk

[lata]

Trevor,

Can I use your 4shared location as before for the upload?? Yes David

Canuck,
Can you clarify what you mean by smart package of my setup? create a project using your video files, then file Smart Package will copy the entire contents to a single folder allowing you to share/upload. you have the option to create a zipped folder

I haven't made a project file of any single clip that's been under test, and as far as I know all smart package does is put all the components of a project together in one place. If there's only one file, a package seems pointless. So how does X5 setup get into smart package? The smart package The Package contains the VSP which includes all edits, I guess not needed as you are providing an unedited video file

Davidk

[lata]

Now I'm even more confused. Maybe If we can't identify a cause/fix, a reliable workaround would be good.Davidk

The work-round a fix is there:-
1 / Set the project properties to match the video file. This is the norm when working with DVD-Mpeg2 type files
Did you ever set Show Messages? this would automatically set the project properties for you?

2 / Render using Digital Dolby Audio.

3 / Did you ever try re-naming the Mod to Mpg?

The lpcm audio seems to be a problem for you, I am thinking its a problem with your pc rather than a Video Studio problem
having a longer video file will help

Your other post referred to loosing audio during transitions and eventually found you were using the Mod types, not sure if this was ever sorted?
http://forum.corel.com/EN/viewtopic.php?f=1&t=48039

[Davidk]

Hi Trevor,

The upload is done. The 4shared site is tricky to use. Each time I've tried an upload using the browser, it breaks at about the 10mb sent point, and using the desktop program has involved a re-install (custom, without the add-on search bars etc) each time. However once I got the desktop UI up, the upload went Ok.

In the zip archive are 4 files: the source .mod file, two versions of that file rendered using 1) mpeg optimiser and 2) same as project properties, (both as outlined in the recent posts) and a vsp file. Decided to do that (make a vsp file) after thinking about Canuck's remarks re settings - its only got one clip in it, but just on the off-chance the vsp file does in fact have application settings in too.

Re your comment re the previous loss of sound issue - yes, resolved, but indirectly. The audio of the clip involved must have become corrupted. How, escapes me. Why it would have audio in one mode and not another was also a mystery. But when I eventually replaced it with a new copy from the DVD backup source, the problem went away.

Davidk

Post edited by Trevor, added 4 shared link
http://www.4shared.com/zip/g4_UUsRc/mod ... _test.html

[lata]

Hi David

Using the new sample I have tried again to replicate your echo but unable to do so.

Everything I try creates a good video, the immediate playback sounds good, the same as any other playback

I have used a XP and Windows 7 computer with the same results.

You said that the echo was unmistakable well I definitely do not hear it?

It has to be your system, something has to be causing this.

[Davidk]

Hi Trevor,

Accepting that, I don't know what it might be. I did at one point (mentioned briefly in one of the posts) experiment with the idea that it may be slightly out of sync stereo outputs, but that idea failed to give any results.

The system sound hardware responds normally to other applications (games, the OS, mail client, other video and music players etc) and windows controls the interface to it anyway.

So I guess the workaround is the way to go until something comes along that throws more light on this.

Many thanks for your help.

Davidk

[lata]

Hi David

You say you have a workround, but that is the approach you should be doing. I am sure canuck will also comment after testing the sample.

Your camera produces Mpeg2 type video having properties suitable of burning to a disc, this is a compliant video file.
When working with Mpeg2 your project properties should match the video’s properties.

After editing you create a new video file of the project again using the same properties, the bit rate (Data Rate) could be changed to reflect the length of the project, but other properties should remain the same.

Changing the audio to lpcm is not what I would do.

As a further test and to confirm that your video file is compliant I have burned a disc using the Mod file, the process completed without any further rendering, Your file being used as is to burn the disc, it is a Compliant DVD Mpeg2 file

Please read my Quick Guide for Mpeg2
http://lata.me.uk/video_studio/guides/q ... e_mpeg.htm

I realise the underlying problem was crashes when using Mod files but that is fixed by re-naming the files to MPG.

Direct X

Can you download this file and install Direct X
http://www.microsoft.com/en-us/download ... px?id=8109

The process is in three parts
1 / Download the file --- directx_Jun2010_redist.exe --- (97.922Kb)
2 / Double click this file to run, this will extract its content, there are a lot of files so create a new folder on the desktop to hold the files.
3 / Locate the file called DXSETUP.exe – double click to install the files on your pc.

Does this help with the echo?

[Davidk]

Hi Trevor,

Thanks for the process advice, and I've reading to do . . .

Re direct X - that re-distributable was installed on the PC last April 2012, shortly after I upgraded to X5. Given that it's date is 2010, I was surprised that it was not part of the X5 distribution disks. I installed it because of an issue with burning DVD's using X5, which were solved after it was installed following a support request. Originally Direct X 10, windows had updated it to version 11 when I checked after you first mentioned it. I've burnt several DVD's since the recent re-install of X5 and there were no problems with that function so I doubt it is affecting this echo issue.

David