| Printable Version of Topic
Click here to view this topic in its original format |
| Unofficial VirtualDub Support Forums > Codec Discussion > 6 Channels Pcm To Aac Or Ac3 |
| Posted by: BFGod Apr 9 2011, 08:30 AM |
| Hello, i have a video with the following audio: Audio Format : PCM Codec ID : FFFE Codec ID/Info : Extensible Duration : 17mn 15s Bit rate mode : Constant Bit rate : 4 608 Kbps Channel(s) : 6 channels Channel positions : Front: L, C, R, Surround: L, R, LFE Sampling rate : 48.0 KHz Resolution : 16 bits Stream size : 569 MiB (28%) Interleave, duration : 33 ms (1.00 video frame) Interleave, preload duration : 500 ms The thing is i would like to convert the audio to something that is smaller than wave and keep the 6 chanels audio. If it were with 2 chanles i easly could use lameMP3, but i want to keep the 6 chanels. I know i can extract the audio from the video, then convert it with a program and then put it back to the video, but i would like to make the whole thing more automatic with the use of the Virtual Dub. So the question is: is there a codec which can convert 6 channels PCM to AAC or AC3 or something else and the codec can be used in Virtual Dub like lameMP3 for example? The OS is Windows 7 64bits. Thank you, Best regards! |
| Posted by: ale5000 Apr 9 2011, 02:59 PM |
| This codec support multi-channel encoding: http://fcchandler.home.comcast.net/~fcchandler/AC3ACM/ VirtualDub currently "actively" block multi-channel encoding, but you can try with http://www.afterdawn.com/software/audio_video/video_editing/virtualdubmod_aud-x_compatible.cfm. |
| Posted by: BFGod Apr 10 2011, 03:11 PM |
| Thanks, ale5000, i just tested it and it works, i really appreciate your help! |
| Posted by: Fozzie May 30 2011, 08:11 AM |
| I am trying to convert an MTS file with 5.1 AC3 audio to AVI using Matrox MPEG I-frame HD keeping the 6 channel audio intact. My audio compression selection is "no compression (pcm)". I have successfully converted a stereo MTS file but I'm not having much luck with the 6 channel file. I end up with stereo channels with silence and a few faint noises that don't resemble the original audio. The objective is to import the AVi into Lightworks NLE. I have tried Vdubmod surround with no joy. I have installed on my system, Matrox VfW codecs,. ffdshow tryouts, Haali Media Splitter, Vdub directshow input driver, AC3ACM fix 2 codec, AC3 Vdub plugin. Any suggestions? |
| Posted by: ale5000 Dec 1 2011, 07:15 PM |
| The reply is a bit late but try like this: 1) Remux the file to .mkv with http://www.bunkus.org/videotools/mkvtoolnix/ 2) Open the .mkv files in VirtualDub + http://forums.virtualdub.org/index.php?act=ST&f=7&t=19488 3) Select Video => Direct stream copy and Audio => Direct stream copy 4) File => Save as AVI... |