Cut and Merge causes a short squeak sound

[dinesh]

I had a home video clip about 30 minutes long and encoded it to Video CD MPEG1 with TMPGEnc. There were some blank moments between for which I used TMPGEnc Cut and cut the clip into separate clips without the blank frames. When I Merged the clips back again to form a full clip, when playing,at some of the places where the clips were joint I get a short squeak sound. Is this normal? Or is it because I may have cut at the B or P frame?

[tenebrenz]

tmpg only does basic cutting of an encoded file and is not really suitable for edit. I tried it once and got your problem,plus the sync going at the cut point. The only program i've seen that can do this kind of editing well is m1-edit pro but that costs money!
I'd suggest you learn how to use avisyth (its not as difficult as it initially seems) and pass an edited version of your file to tmpg that way.
Hope this helps.

[dinesh]

Thanks for the reply.
I had thought about using VirtualDub or Avisynth, but I am concerned that reencoding it may lead to loss in Quality.
This is what I do:
1) I capture all video from my Camcorder (using AVI_IO or VirtualDub).
2) I open the files as appended AVI segments in VirtualDub, save WAV (MONO output), open the wav file and Normalize it, Increase the sound level,save as STEREO Wav file (44100Hz) in Nero Sound Editor.
3) Apply filters in Virtual Dub(Subtitle, ReSize, etc) and start FrameServing.
4) Open TMPGEnc and use the .vdr of VirtualDub for the Video and WAV file as Audio, set MPEG-VideoCD settings and Start and go to sleep(It may take around 3 to 4 hours to convert during the night).
5) Next morning I sit to cut out the unwanted portions and join them,and I get this squeak sound at some of the joints.

I use TMPGEnc since I feel it may retain the settings required for Video CD compliance.
The Idea of cutting the final clip and frameserving using AviSynth to reencode may not retain the Quality.
Is there a better way to do it in TMPGEnc?
Alternatively is there a better FREE tool to Cut and Merge and still retain the VCD Specs (SO that Nero or EasyCD 5 do not "complain")?
Thanks.

[tenebrenz]

The Idea of cutting the final clip and frameserving using AviSynth to reencode may not retain the Quality.
Correct. I was suggesting that you edit the video before you encode it in tmpg. Looking at your methodology, which seems fine btw, I would put this step in between your steps 1 & 2.

Step 1.5) open avi files in an avisynth script, edit the bits you don't want out.
Step 2) Open avisynth script in VirtualDub, etc...

That way you don't waste time processing and encoding bits you don't even want.

[dinesh]

Thanks. That looks like a nice idea. I shall try it out the next time.
It may be less rework.
I discovered another thing. After cutting the clips using TMPGEnc I dont merge them immediately. I open the cut clips and give it another pass thru encoding as a new mpg. Encoding is fast this time. I have not seen any noticable difference in quality after this(or may be even no further encoding is done, I am not sure). The merging of such clips does not have any problems. Perhaps re-encoding fills in any missing clip info that may have lost during cutting.