This mix should be in 5.1/7.1/Atmos/stereo/mono and is added to the full-res master. The music boys add their umpteen tracks and all being well, a final mix is made. ![]() These tracks are then sent back and (because they are time-stamped) are added to another low-res copy of master project in Media Composer/Premier/Vegas/Hit-Film/Davinci-Resolve or whatever the film editor is using. The last thing you want, is for your poor little laptop to be struggling with RAW 4K-60fps footage! The video editor sends the audio post room an SD render with location sound and they add FX, Foleys, ADR and anything else that is required, all as separate tracks. The RAW video stays in the video editing machine and the audio is done, using an SD video (or sometimes even lower res.) render, just for the audio post to play with. Thanks for all that! This sounds like the path I need to be on. After closing down AVIDemux, you can load this video in and re-save it - now choosing the MPEG4 muxer. For example, if you opened an *.mp4 video and replaced its aufio stream you might need to save it via the MKV muxer. What I found out is that you sometimes need to save a video in another container format. I recommend FreeAudioVideoPack to extract original streams from videos or if you want to convert the audio stream to a desired format while extracting it. For example, if you opened an *.mp4 video and replaced its audio stream you might need to save it via the MKV muxer. You can also easily optimize lip-syc'ing by putting in positive or negative delay values in the resp. If you need to make cuts with more than I-frames accuracy (frame accurate) parts of the video might get re-encoded.Ĭlick the AUDIO menu to replace or re-arrange the order of audio streams in a video. ![]() You can even get a portable version of it at and you can also use it to edit the video without re-encoding (cut out sections in I-frame precision). That's all useful info and well and good but I just want to know how to preserve any video 1:1 regardless of any format decisions made upstream.ĪVIDemux is what you need to replace audio streams in a video without touching quality (thus without re-encoding). I am NOT looking for a critique of lossy formats like one might be tempted to offer for mp3. What apps can be used to handle and keep intact the video component?Īnyone know of a good reference chart for video? What formats can be put into what file container and what keeps things 1:1 vs. The mpeg-4/mov render option in Reaper of course re-encodes the video. ![]() Or how a 16 bit file can be put into a 24 bit format and preserved 1:1 but not the reverse. These are the questions that I get the 12-volt stare to.įor example, if this was audio we would discuss how mp3 can be copied as a file 1:1 but decoding it back to wav and re-encoding it to mp3 would add another level of loss. What ones require going to lossy audio? What lossy options do you get to choose from in this example? What video formats accept lossless PCM audio (max 48k is just fine in this example)? How to preserve the video as is without re-encoding it? The different levels of lossy video formats are the confusing ones! Preparing audio for bluray seems to ironically be the easy one these days. ![]() I'd like to see someone talk about how to keep already lossy video 1:1 with the original.
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