![]() ![]() I had a copy of the video (sans subs) that I had previously re-encoded with the mkvmerge-gui, and I knew that HandBrake would open it properly. ![]() srt file in the video, so first I extracted the. Typically AVI has MP3, while MP4 has AAC (good for M4A container). Perhaps use MediaInfo to know what audio codec the movie has inside. While -vn means no video to be included, -sn means no subtitle to be included. It is lossless because of this: -c:a copy. ![]() The mkvmerge -i command found that there was both a. The FFmpeg extraction command of the audio track above is lossless. This might help someone else, as ogg is not supported by many standalone devices. But mkvextract tracks yourfile.mkv 3:chinese.srt worked to extract the subs. AVC video will not suffer, there is no recoding involved, and Audacity converts the AAC LC used in MP4s without noticable loss. Add your mkv video file(you can also add most other video files but it might not work to cut/mux all formats). In order to play that on a Samsung TV (and get the audio from a Home Theater system), it is necessary to first change container (no recoding) to MKV (MKVToolNix GUI), extract audio track (gMKVextract GUI), open audio in Audacity, export as 6 ch AC3 - using the way you described, just with different track numbers and finally mux again with MKVToolnix GUI (MKV merge, but the GUI is simple and easy). Install MKVtoolnix and then start MKVToolnix-GUI. I had some videos in the MP4 container, with 6 ch sound. I can confirm that this procedure works with AC3 (Dolby Digital) sound tracks as well, as long as you have the ffmpeg for Audacity installed - easy to do from Audacity itself.ĪC3 order is not the same as OGG - 1 Front Left, 2 Front Right, 3 Centre, 4 LFE, 5 Rear Left, 6 Rear Right. ![]()
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