megamachine
14th June 2003, 13:56
First let me say thank you very much for a great forum. I have been browsing for a few weeks, and joined last week, and have found a wealth of information here, almost too much to comprehend. All I can say is that I am learning the basics and hope to continue learning.
Mostly, I have been using the guides and software recommended here to copy some of my DVDs to DivX for laptop viewing, and have produced about a dozen that I am very happy with. I also tried a few different methods, too, just to get familiar with the software and procedures.
Recently, I tried to do the same from VHS, and ran into some trouble with the audio track on the final DivX encoded AVI. Here's what I did:
-Capture the movie (clean first generation tape) with an external capture device (I use a laptop) as an MPEG-2 at 3mbs with MPEG-1 48khz audio (my capture device only allows capturing as MPEGs, not as AVIs). I have used this device many times before with no problems, though until now have only gone as far as VCD encoding with the files.
-Use MPEG2CUT to trim the file a bit, and then save it as a VOB file.
-Load the VOB into DVD2AVI and demux it into D2V and MPA streams.
-Use the same procedure I use for preparing to encode with my DVDs in VirtualDub (from VFAPI) to crop, resize and compress the video stream with DivX 5.0.2, which has worked fine so far with DVD source files.
So far so good, the video and audio streams play fine separately. The next step is usually to compress the audio stream, and here I have encountered a problem. I've used Headac3he to compress (to MP3) the AC3 files from DVD, but this is my first time using MPA, so maybe the settings need to be different. I get an error message that says "read less bytes than expected." I experimented with VBR, ABR and CBR, but that didn't seem to help. Then, in Headac3he, I checked the boxes for start frame and end frame, and subtracted one frame at the end. The error message went away, and the resulting MP3 plays till the end.
Then, I load the AVI and the MP3 into NanDub to make a direct stream copy. The resulting AVI plays fine and in sync, until about half way through, and then the audio drops out. There is no sync problem, the audio just goes silent about half way through. I tried this several times, with full length movies and with short clips, and get the same result. It never happened with my DVD to DivX, only with the VHS ones. I scanned the final encoded file in VirtualDub for bad frames and found none. Has any one seen this problem? Any help will be greatly appreciated. Sorry for the verbosity, but I wanted to give you as much detail as possible in the hopes of learning more. Thanks.
ThinkPad T30/W2KPro
512RAM/40GBHDD/P4 1.6Ghz
Mostly, I have been using the guides and software recommended here to copy some of my DVDs to DivX for laptop viewing, and have produced about a dozen that I am very happy with. I also tried a few different methods, too, just to get familiar with the software and procedures.
Recently, I tried to do the same from VHS, and ran into some trouble with the audio track on the final DivX encoded AVI. Here's what I did:
-Capture the movie (clean first generation tape) with an external capture device (I use a laptop) as an MPEG-2 at 3mbs with MPEG-1 48khz audio (my capture device only allows capturing as MPEGs, not as AVIs). I have used this device many times before with no problems, though until now have only gone as far as VCD encoding with the files.
-Use MPEG2CUT to trim the file a bit, and then save it as a VOB file.
-Load the VOB into DVD2AVI and demux it into D2V and MPA streams.
-Use the same procedure I use for preparing to encode with my DVDs in VirtualDub (from VFAPI) to crop, resize and compress the video stream with DivX 5.0.2, which has worked fine so far with DVD source files.
So far so good, the video and audio streams play fine separately. The next step is usually to compress the audio stream, and here I have encountered a problem. I've used Headac3he to compress (to MP3) the AC3 files from DVD, but this is my first time using MPA, so maybe the settings need to be different. I get an error message that says "read less bytes than expected." I experimented with VBR, ABR and CBR, but that didn't seem to help. Then, in Headac3he, I checked the boxes for start frame and end frame, and subtracted one frame at the end. The error message went away, and the resulting MP3 plays till the end.
Then, I load the AVI and the MP3 into NanDub to make a direct stream copy. The resulting AVI plays fine and in sync, until about half way through, and then the audio drops out. There is no sync problem, the audio just goes silent about half way through. I tried this several times, with full length movies and with short clips, and get the same result. It never happened with my DVD to DivX, only with the VHS ones. I scanned the final encoded file in VirtualDub for bad frames and found none. Has any one seen this problem? Any help will be greatly appreciated. Sorry for the verbosity, but I wanted to give you as much detail as possible in the hopes of learning more. Thanks.
ThinkPad T30/W2KPro
512RAM/40GBHDD/P4 1.6Ghz