![]() Note that if you don't check in this checkbox, you'll see “ Passthru” upon the next file opening. You'll see the same if you enable the " Convert AC3 Audio to AAC" checkbox in Preferences > Audio, annotated by a rectangle in the following screenshot: Note that, unlike the one with the DTS audio tracks, the default value you'll see here depends on the state of a checkbox and a drop-down list in Preferences. In the “ Action” column, we see the same “ AAC – Dolby Pro Logic II”, meaning the AC3 audio track will also be converted into a Dolby Pro Logic II AAC track. Now, let's take a look at the next row, the one with “ AC3” type and “2” ID. (You'll rarely need to – I don't know of any MP4 player hardware not being able to play back the default, most advanced, MOV container-compliant Dolby Pro Logic II audio.) In this column, you can also change the output format generally, only change this if, for some reason, you need to use some other output downmixing. With DTS audio tracks, it'll always be “AAC – Dolby Pro Logic II” as DTS must be converted as it can't be natively included in target MP4 / MOV / M4V files, unlike AC3 tracks. The next, “Action” column tells Subler what to do with the given track. In this case, it's “ DTS” in the annotated row. You can quickly learn the audio format a given track is using by casting a glance at the sixth, “ Info” column. I've annotated the checkbox showing, by default, Subler imports all tracks, including both AC3 and DTS, from the MKV file you open: It's the first checkbox list, immediately displayed after selecting the file to load. Give a try to converting THIS file (it has both a DTS and an AC3 audio track) with Subler, making sure you don't untick anything in the “ Select Tracks” dialog box. …you'll already be able to convert DTS (but not AC3!) audio tracks. Enabling it will be done via clicking it again when it shows “ Install Perian”.ġ.2 After installing and enabling Perian. In the screenshot above, I've annotated the button you'll need to click, should you want to quickly disable Perian. Just install it by clicking “ Perian.prefPane” in it, which installs a new preference pane in the Other group of system-level System Preferences: THIS is the DTS decoder (current, 1.2.3 version if it becomes unavailable some time in the future, you'll find the working link at Perian's main page). I'll later explain when this needs to be done – the order of file copying / overwriting is very important! (Discussion links also linking to the file: thread on Subler's page another one and a Russian one with a decent Subler tutorial.) THIS file is the AC3 encoder and (after decompressing) must be placed under ~/Library/Audio/Plug-Ins/Components in your home directory. Here's how.ġ.1 First, you'll need to download two files: However, for both DTS tracks and iPhone / iPad / iPod touch users, this article will be of extreme importance.įortunately, while Perian is indeed not fully compatible with Mountain Lion by default, with some manual “hacking”, it's very easy to make it work with Subler for both AC3 and DTS conversion. ![]() That is, if your MKV input files only have (an) AC3 track(s) and you only target Apple TV's, you can safely skip this article. The Apple TV can also play AC3 audio tracks so, should you not want to play back your videos on iPhones or iPads, you don't need to convert AC3 tracks to AAC ones at all. (A lot of other, free or very cheap remuxers – for example, the non-beta version of MP4Tools and Smart Converter - discard or mess up subtitle tracks.)Īs has been pointed out in the previous part of this series, without installing Perian, Subler won't be able to convert either AC3 or DTS original soundtracks into AAC ones required by iOS devices. One of the reasons for this was simple: during benchmarking and testing, I've found Subler still the best (fastest, most reliable, non-crashing) free remuxer, particularly if you need to keep subtitles. I've very thoroughly examined Perian's more or less broken compatibility (of which I've talked quite a bit in the previous part) with the latest-and-greatest Mac OS X operating system version Mountain Lion (ML for short). This is how you can still use Perian on Mountain Lion – and remux all your MKV's with Subler This is Part III of my article series of my MKV remuxing series (last part HERE), with two main subects: Perian (and the Perian-dependent Subler) on Mountain Lion and selecting the right version of one of the most recommended MKV remuxers, MP4Tools.
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