View Full Version : gordian knot not processing wav file
jamlerric
28th July 2002, 21:34
Some of the dvds that i rip don't have ac3 files compressed with them, only wav file(s) (which are extracted when performing the "dvd2avi" step).
Gordian Kot doesn't seem to process wav files when one is compressing the movie (GK seems to only process / accept mp3,ac3 or mpa audio input files).**
Can any one enlighten me as to how to get GK to process the wav file when compressing the movie? .... or is there any alternative way of converting the wav file to ac3, mp3 or mpa prior to compressing the movie?
** I find that when the audio input file is a wav file, the compressed movie "comes out" with no sound.
DJ Bobo
28th July 2002, 23:40
compress it separately to MP3 in RazorLame then mux it with the soundless AVI in NanDub
jggimi
29th July 2002, 05:16
@jamlerric
It would seem, from your description, that you inadvertantly selected "decode" rather than "demux" in dvd2avi. You shouldn't be getting wav files as output if you use demux.
jamlerric
29th July 2002, 07:19
Originally posted by jggimi
@jamlerric
It would seem, from your description, that you inadvertantly selected "decode" rather than "demux" in dvd2avi. You shouldn't be getting wav files as output if you use demux.
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I have definitely selected "demux [all tracks]". I realise that one "shouldn't be getting wav files as output", however as mentioned in my original post, some dvds don't appear to have *any* ac3 tracks encoded with them. My reason for saying so is that when viewing the "*info.txt" file that was produced when ripping the dvd, there is no ac3 file, only wav file, mentioned therein (the dvd I'm ripping, by the way, is "REM - Parallel").
jamlerric
29th July 2002, 07:29
Originally posted by DJ Bobo
compress it separately to MP3 in RazorLame then mux it with the soundless AVI in NanDub
I appreciate the response, however, I have been able to (prior to my post) mux my wav file with the AVI. My real problem, as mentioned in my post, is getting GK to compress the movie *with audio*. I find that if GK *doesn't* compress the movie with audio, GK doesn't produce an *optimal* video file size because it doesn't have audio to process / compress with it. Instead, one "lands up with" a smaller video than what was desired. Ideally, it would be better to have an ac3 file to work with instead of a wav file. I have "converted" my "source audio" wav file to mp3, and then compressed the movie again, but still an optimal file size is not obtained as is the case when using the original mp3,mpa or ac3 audio files that are demuxed when performing the dvd2avi step.
DJ Bobo
29th July 2002, 11:16
No, you can still obtain your "optimal" -.- size when compressing the audio separately. I personally encode Audio ALWAYS separately (I get sometimes asynch sound just because of encoding video & audio simultaneously!).
In the bitrate Tab of GKnot just give the mp3 bitrate you wanna use and choose the right options to get the appropriate video bitrate.
There is no reason you get a different size, and if you get a different size, it will be in the range of +/- 5MB, so nothing serious -.-
jamlerric
29th July 2002, 19:40
So, DJ Bobo, if I understand correctly the following statement that you made, re.
"In the bitrate Tab of GKnot just give the mp3 bitrate you wanna use and choose the right options to get the appropriate video bitrate."
... then, to compress the video without the audio, the settings would be : under "Bitrate" tab, choose "Audio A" to be a bitrate of whatever you want to encode the audio with *later*, say 128kbps, then, under "Interleaving & AVI-Overhead (1 %) section of the "Bitrate" tab, choose the option "no audio" and then the video should come out at the optimal video file size, afterwhich one encodes the audio to hopefully get a movie at around 700mbs (if that was one the optional target file size desired)
DJ Bobo
29th July 2002, 21:57
exactly
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