![]() ![]() In that case I'll just take the slower option. Outside of the Apple bubble, MKV is widely supported by current hardware and software players. QuoteI may need to do more files as well, because it appears people like to use mkv despite it being not very compatible. If both file size and quality matter, use x264 and accept relatively slow encoding speed at good quality levels. possible read spead) don't matter, but the time matters and a hw accelerated encoder is available, yank the bitrate to 10000kbps (this might be even the default value) in the configuration of the "Nvidia H264" encoder to keep quality close to that of the source (you will always lose quality by re-encoding). ![]() If the video stream is HEVC, then apart from AV1 (which we support only for decoding at the moment), everything will inflate the file size unless you reduce resolution or accept a very big drop in quality. QuoteBecause I plan to remux 13 fullHD files which are ~200mb each. Maybe ~2x bitrate for the same visual quality compared to x264, but very content-dependent. ![]() ![]() I fear, I can't provide any solid estimates. QuoteAnd just how low compression are we talking? How might I enable this hardware accelerated encoder?ĭoes your laptop have a NVIDIA graphics card? If yes and the NVIDIA graphics driver is very recent, there should be a "Nvidia H264" encoder in the list of video encoders. If your laptop has a NVIDIA graphics card, you might try the NVIDIA H.264 hw accelerated encoder, which achieves only low compression but is blazingly fast. 1/4 of real time) is an excellent speed at the default quality level. Quote from: eumagga0x2a on January 12, 2020, 03:44:29 PMĢ hours for a fullHD video (approx. Also, I was not able to understand the solution because of my lack of knowledge in programming. Pretty sure it's because of the OPUS codec but is there anything I can do to change this? I saw a previous thread ( ) which had a solution in an older version but they had a PCM codec in their file. I'm trying to convert a mkv to mp4 losslessly so I can run the file on a bluray player, and so I want to remux to mp4, but saving as mp4 just brings up the error, "Unsupported - Only AAC, AC3, E-AC3, MP2, MP3 and Vorbis supported for audio". I'm running a nightly build, the latest as of now: 2.7.5 (these are free and have similar use as Pinnacle).Hi, new to the forums and muxing, so apologies for being slowĮxtra data: 01 02 20 00 00 00 90 00 00 00 If you prefer more user friendly approach, then use some more advanced editor - maybe Pinnacle Studio (have to pay for it, and it needs to recompress your video before saving) or on linux something like Kdenlive, Open Movie Editor etc. Save that new audio still in audacity, then tell avidemux to use that external audio instead of the original one. whatever seconds in but say it was 10 seconds in length, you now have an audio in there that is 10 minutes 10 seconds. So if the original was 10 minutes, and the inserted clip you put in e.g. you want to insert audio at 12 seconds so cut after 12 seconds of the imported audio, add your audio clip in then paste what you cut to be after that. Looks like you're saying, to extract the audio from the video with avidemux, import the audio into Audacity, and in Audacity, use features like cut/paste/join, to add your audio clip into the desired position within the audio you imported, e.g. So if you need to combine your MP3 with the video sound, then save your audio track from Avidemux, use Audacity to cut and combine it with your MP3 files and finally import it back to video using Avidemux again. This solution has one limitation (as I know) - the new audio replaces your original audio track and always starts with the video. Just open your video, select Copy for Video in the left settings tab and then go to main menu Audio/Main track and you will get dialog Main audio track and choose for Audio: External MP3 instead of default setting Video. Avidemux is able to use external audio track from MP3, AC3 or WAV. ![]()
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