Hi guys That's the matter: I received a DVD from a friend that asked me to cut some parts of the movie. I don't have DVD-player. I use PowerDVD at computer to see DVDs. But this one has no audio!!! Weird... I phoned to my friend and he told me that movie does has an audio track. Then I came back and seeked PowerDVD for audio features and I found "Cyberlink Virtual Speaker". When I set this mode I can hear audio. Bingo! I used DVDDecrypter and ripped it to HD. Then I use DVD-Lab to demux VOBs to MPV and AC3 files. Fine. Video is NTSC[DF], 352x480, 4:3, 2250 kbps and Audio is Dolby 2/0, CH:2 and only 256 kbps. When I play AC3 file on MediaPlayer I cannot hear anything. I imported it to Goldwave but it seems to be an empty file, despite it processes long time to unwrap AC3. No audio at all, once again... I have no clue what is going on with that audio... Why I can hear it when I set "Cyberlink Virtual Speaker" at PowerDVD? How to edit and author that DVD if I cannot have a proper audio file. Thank you folks for any suggestion P.S.: Ironically the movie is an opera... The most important stuff is the audio itself.
Hi davexnet Thank you for your reply. I tryed your suggestion using BeSweet GUI (v.0.7b5) and BeSweet v1.5b30 by DSPguru converting AC3 to WAV: (Last part of a long Log file) [00:00:00:000] +------- BeSweet ----- [00:00:00:000] | Input : h:\Carlos\Mignon\VIDEO_TS_or\VTS_01_1.ac3 [00:00:00:000] | Output: h:\Carlos\Mignon\VIDEO_TS_or\VTS_01_1-New.wav [00:00:00:000] | Floating-Point Process: No [00:00:00:000] +-------- AZID ------- [00:00:00:000] | Input Channels Mode: 2/0, Bitrate: 256kbps [00:00:00:000] | Output Stereo mode: Dolby surround compatible [00:00:00:000] | Total Gain: 0.000dB, Compression: None [00:00:00:000] | LFE levels: To LR -INF, To LFE 0.0dB [00:00:00:000] | Center mix level: BSI [00:00:00:000] | Surround mix level: BSI [00:00:00:000] | Dialog normalization: No [00:00:00:000] | Rear channels filtering: No [00:00:00:000] | Source Sample-Rate: 48.0KHz [00:00:00:000] +--------------------- [02:56:35:552] Conversion Completed ! [02:56:35:552] Actual Avg. Bitrate : 319kbps [00:03:29:000] <-- Transcoding Duration But no luck. It creates a 1.9 Gb file with no sound... Someone told me it is because I don't have AC3 ACM codecs. But I think it is not the point yet. I have K-Lite Codec Pack installed (latest version) and it does bring AC3/ACM and ffdshow stuffs. And why PowerDVD can play it WITH sound? At same computer and configuration? It is weird... Let's think a little more.
Never heard of this problem. Perhaps start again from the beginning. Instead of DVDdecrypter, just copy the video_ts folder to the hard drive using Windows Explorer. Then use DGindex to demux the audio. See if the result is any different. I don't think you need an ac-3 encoder/decoder installed to use these tools.
Hi davexnet It isn't a matter if I play video_vts from HD or DVD. It has no sound if I play from HD or DVD. Explain: it has sound, but my system cannot run it. I can hear the sounf if, and only if, I set Cyberlink Virtual Speaker in PowerDVD. But AC3 or WAV I split from the VOBs (or the VOB itself) do not run any sound... It is weird... I also tryed DGIndex. The AC3 that came from it is also mute file... :-( No luck...
I've no idea - do you have ac3filter installed? Perhaps you can use that to get some more info about the file. Is it possible that the levels are very low and you can't hear it? Have you looked at the ac3 file with mediainfo? It will give you the sample rate, bitrate, number of channels, etc,etc. You should be able to use besweet/belight to produce 6 mono wav files. Look at each of them individually.
Yes, I have ac3filter installed because I have many others DVD and I could get valid ac3 files from them. I run K-Lite log file for installed codec and it shows: Description: AC-3 ACM Codec ID: msacm.ac3acm File name: C:\WINDOWS\system32\ac3acm.acm File version: 1.5.0.0 File size: 151552 bytes File MD5: 13fa039c5e464f3bf0c6d01e00581caa Please, go to http://forum.videohelp.com/threads/...hiding-itself-somewhere?p=1996439#post1996439 where I put a post about this topic. I run MediaInfo and got that: (I tryed to add a screenchot here, but isn't working...)
I downloaded your test Mpeg. I get sound, it's using the FFDshow ac3 decoder (liba52). Seems as if you have a codec/system problem.
Hi davexnet Thank you for testing my file. Please, follow the thread at http://forum.videohelp.com/threads/...hiding-itself-somewhere?p=1996439#post1996439 See ya
