This drive me crazy. Editing sound layer on a captured MPG

[Jonz]

Hello.

For the week-end I tried to edit some Video of VCRs I captured on my Hauppauge card.

For capture, I use WINTV2000. They produce MPEG2 files.

Now, all I want to do, is to edit the sound, because the old VCR tapes have some hissing noise on the background. I just can't go throught this situation no matter how close I am to my wanted result.

Last thing I tried, with MPEG2VCR is to demux the mpeg and edit the audio mpa (mp2) file in Goldwave and Audition and saved the file in WAV. I removed the hissing noise with some hiss remover filters and equilazer.

But when I try to reconvert the file into MP2, even using the 2Lame engine, it produce another hissing in the background and the sound is not really good.

It so frustrating to do so many steps just for one thing and not be able to get a satisfying result .

I Can't see what I should do now. Please anyone can do me some suggestions??

[guns1inger]

Use Besweet to convert the wav to 2 channel AC3, then remux - should solve your hiss problem.

[Jonz]

Use Besweet to convert the wav to 2 channel AC3, then remux - should solve your hiss problem.

Sounds a good alternative, but the resulted AC3 file have set the volume a bit too low

and once muxed it awfully desynchronised.

[guns1inger]

Use AC3 Delay Corrector to fix the sync issue. Is the volume too low on the PC, or on the TV ?

[Jonz]

Use AC3 Delay Corrector to fix the sync issue. Is the volume too low on the PC, or on the TV ?

When I say about the volume, it's when I compare the input file to the output file. Nothings to do with the pc or tv volume.

[guns1inger]

How are you comparing ?

AC3 has a much higher dynamic range than a standard wav file. To compensate for this, the volume is usually lowered. You might also find that your AC3 decoder in your PC is also lowering the output on playback.

[Jonz]

How are you comparing ?

I comparing with media player classic and goldwave to be sure.

About the sync problem with AC3, I mistaken myself, it not desync, the audio just cutoff in the 1/4 of the movie. wthell.

I just tried to encode the sound with MP3 using the LAMEenc engine. once muxed, It just doing the same thing when I tried AC3. (always using MPEG2VCR)

[Jonz]

Alright... fixed the audio cut thing.
By checking VBR in advanced option it worked

I'm almost there. Using Lame encoded MP3 seems to be more efficient than 2Lame MP2. And remuxing the Mp3 and the MPV alltogheter with VBR checked seems to be the solution.

Now, remains to know how to remove the hissing noise on my original mpa file with Goldwave without muffling all the audio.

[guns1inger]

Is your output format DVD ? or was the mp3 just an experiment ? MP3 is not a DVD compliant audio format (thankfully), so you can't use it if you intend to output to DVD.

I use sound forge, but for hiss I'd begin with the equaliser or some gates and work in small increments.

[Jonz]

the final output is for HD. Maybe later on DVD when dvd9 discs will be affordable so I can put more than one file in it.

I know MP3 aren't supported but by converting in MP2, it produce another hissing noise over the edited audio (see my other thread), I used 2lame and MP2enc and both produce noise. Mp3 is the format that I found reproducing the audio quite exactly like I wanting it to.

[npaulie2000]

crap in crap out....

[Jonz]

the final output is for HD. Maybe later on DVD when dvd9 discs will be affordable so I can put more than one file in it.

I know MP3 aren't supported but by converting in MP2, it produce another hissing noise over the edited audio (see my other thread), I used 2lame and MP2enc and both produce noise. Mp3 is the format that I found reproducing the audio quite exactly like I wanting it to.