![]() ![]() For example, optimizing my direct Iron Sky BD rip (16 Gbytes) took 5m:30s on my late 2009 2.8 GHz 17” MBP with ML and a 256GByte Vertex 4 SSD as both the source and target disk with Subler. To optimize it again, even high-end configurations need some time. If you add any new track, however small it may be, to a file, it becomes unoptimized (if it was optimized before). Just remember to change the “Action ” entry. By repeating the same step (+ and selecting the same input file), you can add the same audio file using different target audio formats: for example, both as AC3 and AAC. With an AC3 audio track, you basically have two choices: keep it as AC3 (“Passthru ”) or downmix it to AAC (with selectable target channel configuration). To add an (additional) audio (or any) track to an MP4 file with Subler, just open (File > Open ) the target file you'd like to add the new track to, click “+”, select the new track to be added and, in the “Action ” column, select what should be done to the info you're importing. Nevertheless, there are tons of other MKV editors or handlers capable of slicing an MKV file into slices of predefined length for example, the above-mentioned MKVTools. For slicing the original Avatar MKV into 2:18-long parts, I used Mkvtoolnix in its Global > Splitting > Enable Splitting mode. AC3 file, originally exported from the MKV by MKVTools in exactly the same way as exporting BD subtracks. For example, it was with Subler that I've added an AC3 and, then, in another step, a downmixed AAC audio track to the originally no-audio Birds test video ( original one) used below.Ī sidetrack: How you can add audio to MP4 (MOV / M4V) files, you may ask. With it, you can add (and remove) any track to / from the file. The reason for this is that Subler is much more than “only” a plain remuxer. The, currently, probably most recommended remuxer, Subler, however, forces you to manually optimize if you want. Neither does the current beta of another highly recommended remuxer, MP4Tools. Some apps like the above-mentioned iFlicks doesn't let you disable it. In this article, I elaborate on when you will want to use it. You may already have noticed the word “Optimize” in the most popular video remuxing tools: Subler, iFlicks etc. Tutorial & benchmarks: optimizing your MP4 (MOV / M4V) video files + Apple TV 3 streaming tips The first post discusses the optimization process itself the second one the way you can quickly find out whether a particular MOV (mp4 / m4v) file is optimized. It was there that I've noticed I haven't even posted my optimization tutorials here at MR. ![]() In THIS thread, there is a discussion of the need for optimization. ![]()
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