Intervideo WinDVD screws up the sound on my DVD backed up using DVD-Rb [Archive]

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rohangc

16th March 2006, 06:45

Hi. I have backed up an Indian DVD (by Sony, India) using DVD-Rb. Now I don't have access to my original DVD (as I left all my DVDs in India and have only the backups here in the US, hence I can't verify this against the original) and I wanted to watch this movie today. I loaded up the disc in InterVideo WinDVD and the volume was fluctuating terribly on one song (yes, Indian movies have songs). Well, I tried the same DVD on my room-mate's computer which has Cyberlink PowerDVD on it and I got the same results. That was strange because I had watched the exact same disc on a cheapo Philips DVD player back in India and I don't remember noticing any volume fluctuations.

Now, has anyone ever experienced something like this? I don't think DVD-RB alters the sound. Am I right? Since the disc is an original by Sony, I don't think they produce bad discs. Is it possible that something went wrong when I was backing up the disc using DVD-rb? Someone please help. Thanks.

Boulder

16th March 2006, 07:36

One possible reason is that you have dynamic range compression enabled in the audio decoder, which will kick in during the songs.

jdobbs

16th March 2006, 12:38

DVD-RB doesn't change the audio at all... it is an exact copy of the original. So if you are having a problem of fluctuating audio volume -- the problem has to be outside of DVD-RB.

Rockas

16th March 2006, 13:45

rohangc

16th March 2006, 18:40

Can't this be ralated to AC3 decoder?

[OT]
@rohangc
Well... an IronMaiden fan watching Indian movies with songs... huuuummmm... are you sure you are not mixing the movie audio tack with "Seventh son of a seventh son" playing on Media Player? :D

:D Nope. I am sure I am not mixing "Seventh son of a seventh son" with the movie!! Would be funny to watch though. I love Maiden and I watch good Indian movies.

Returning to the topic on hand...I think it might be the AC3 decoder that winDVD uses. I can't find the settings for dynamic range compression in WinDVD. I will install AC3filter 0.70b on my system and try listening to the ac3 audio (I plan to demux it using DGIndex with all volume tweaks turned off in the 'audio' menu) and let you folks know what happens (I am not at my computer right now). Thanks, bye.

setarip_old

16th March 2006, 19:36

As an experiment, try copying the DVD to your hard drive - and play it from your hard drive to see if it still exhibits the same behavior...

rohangc

21st March 2006, 05:55

Sorry, I was very busy the last few days and hence this late reply.

As an experiment, try copying the DVD to your hard drive - and play it from your hard drive to see if it still exhibits the same behavior...

I tried that...still the same thing, sorry. I made a XviD file out of that one particular song using GordianKnot. I extracted the original 5.1 audio using DGIndex with all audio processing turned off and I kept it in the XviD file without transcoding it.

I listened to it in WMP and...this time there were no audio problems. I don't get why the commercial DVD playing software do that to my DVD while WMP plays it quite well. I wish someone knows why this happens....Thanks.

Boulder

21st March 2006, 07:20

setarip_old

21st March 2006, 07:33

@rohangc

It would be interesting to find out how the burned DVD NOW plays in a standalone DVD player...

rohangc

25th March 2006, 00:19

Try opening the ac3 file in Media Player Classic and then set up AC3Filter so that it doesn't do any DRC and check the troublesome part. Then try with DRC enabled and see if you have the effect again.

I will do this right away and let you know what happens. Thanks for the help.

The audio processing options in DGIndex are applied only when you decode to WAV, otherwise they are always bypassed.

I didn't know that - thanks. It is always good to learn something new.

It would be interesting to find out how the burned DVD NOW plays in a standalone DVD player...

Yes, I know. But I am a poor, broke grad student. I don't even have a TV, let alone a stand-alone DVD player. I'll have to find someone who does and play it on his system to see if there are issues. I will keep you posted. Thanks.

setarip_old

25th March 2006, 00:54

Just take your burned DVD into a local electronics store and test it there - on several different players ;>}

rohangc

26th March 2006, 20:35

Try opening the ac3 file in Media Player Classic and then set up AC3Filter so that it doesn't do any DRC and check the troublesome part. Then try with DRC enabled and see if you have the effect again.

I did something on similar lines. I opened the DVD itself in Media Player Classic and listened to the song in question with DRC on and then Off.

On both occasions, the sound was very good-no abrupt changes in volume as was seen in WinDVD. But I wonder why WinDVD did that to this DVD. It has never done that before. Anyway, thanks for the tip. It worked and I am now at peace. :thanks:

Just take your burned DVD into a local electronics store and test it there - on several different players ;>}

That is a good idea! Will definitely try that some time soon and will let you know what happens. Meanwhile, I think the issue is more or less settled. The audio in the source seems to be good.

Well... an IronMaiden fan watching Indian movies with songs... huuuummmm... are you sure you are not mixing the movie audio tack with "Seventh son of a seventh son" playing on Media Player?

One funny thing...though. I went to watch "Inside Man" on Friday - the day it came out. Guess what? The movie opens with and ends with the very same Hindi song I have been having trouble with.... Imagine my surprise!! Well, well, the song suits the new scenario very well and it kind of compliments the opening. So, my tastes are not that far-fetched after all. :sly:

Thanks everyone. Have a nice day.

Boulder

27th March 2006, 06:10

I did something on similar lines. I opened the DVD itself in Media Player Classic and listened to the song in question with DRC on and then Off.

On both occasions, the sound was very good-no abrupt changes in volume as was seen in WinDVD. But I wonder why WinDVD did that to this DVD. It has never done that before. Anyway, thanks for the tip. It worked and I am now at peace. :thanks:

There should be a setting in WinDVD that allows you to turn DRC off. I think it's somewhere in the listening environment area, in PowerDVD DRC is off when you set the listening environment to "Quiet". Try if that helps, I can't think of any other reason for louder parts to suddenly fade out etc.

khushalbhadra

10th April 2006, 07:21

I too Have a Xvid Rip with Ac3 sound of a Concert and whenever I play this Xvid file on any player WMP,Divx Player.But the Sound Keeps On Fluctuating with High And Low volume.And it is very Irritating.You cannot even here Proper Solo's of Guitar.
Help me solve this problem.....

setarip_old

10th April 2006, 07:51

@khushalbhadra I too Have a Xvid RipNo one else in this thread, or this entire sub-forum is talking about "XVID rips" - and especially not for the third time after previously stating that it's a file that you've downloaded...

Teegedeck

10th April 2006, 09:07

Here (http://forum.doom9.org/showthread.php?t=109818) and here, (http://forum.doom9.org/showthread.php?t=109819) to be precise. And that's that: strike.

khushalbhadra

11th April 2006, 04:48

I am Extremely sorry as I have broken the rules.I would keep this in mind now.
But plzzz tell me a solution to this problem.

jdobbs

11th April 2006, 04:55

I'm sorry, but I can't for the life of me make a connection between this question and this forum... how does an XviD encode relate to DVD Rebuilder? It seems you should be posting in either the audio or the XviD forums.