![ac3 5.1 448 kbps ac3 5.1 448 kbps](https://images2.imgbox.com/84/8f/fwKi3bDv_o.png)
![ac3 5.1 448 kbps ac3 5.1 448 kbps](https://i.loli.net/2018/06/21/5b2b3f4b082c5.jpg)
That's why I always keep the AC3 multi-channel track (448 or 640kbp/s) in the file somewhere, if possible. You can always convert the original track to any other format, but once it's gone, you can never get the original back. We don't know what's gonna be going on five years from now. mkv isn't even broadly accepted as a container by commercial entities. It's still the wild, wild west out there with codecs, containers and streams and it'll probably be that way for awhile, heck. You can mux those streams into the containers, however, and get them to playback on most devices. ac3 audio streams and MPEG-2 containers don't (technically) support avc/.h264 video streams. And I shouldn't have any problem passing a 2.0 AAC audio stream to a receiver.įrom the way I see it, the biggest problem is that.
![ac3 5.1 448 kbps ac3 5.1 448 kbps](https://i.ytimg.com/vi/SSX31K0iGfE/maxresdefault.jpg)
For AAC I get better compression, but I lose 5.1 (unlewss i jum through hoops). I will never own a Boxee Box/WDTV/Apple TV/ipad/ipod.Īnd if I do only have one track, I can get by with AC3 as long as I have a playback device that can handle it (like VLC) and every stereo in existence can decode AC3.
#AC3 5.1 448 KBPS PC#
I guess what I'm really asking is - if I only ever plan on playing the files on a Windows PC and only outputting the audio to computer speakers or a nice 5/6/7.1 stereo, is there any reason to ever have more than one audio track? Again the audio tracks from the TV shows are either 192 kbps for 2.0 stuff or 384 kbps for the 5.1. If I connect the PC via analog cables (3.5mm to RCA) the fact that it's AAC won't matter as the receiver won't have any clue, right?
#AC3 5.1 448 KBPS PRO#
My reading online says that most receivers can't play AAC 5.1 audio, but I'm guessing they can handle AAC Dolby Pro Logic II via SPDIF (otherwise I'd have read messages of people conplaining about it). I am curious though if you know what happens if I have an AAC audio track and connect my sound card to a receiver via SPDIF. It's a lot of questions, but I'm fairly clueless when it comes to all the audio options I have for encoding. What audio playback system do I even need to have to take advantage of AC3 audio, anyway? What effect is there on encoding the 5.1 tracks to Dolby Pro Logic II, or, conversely, what benefit is there of including the AC3 passthru of 5.1 sound over mixing it down to Pro Logic II? Should I encode the 5.1 tracks to 5.1 discrete AAC tracks? Is there any benefit at all (discounting any AC3 playback problems I may have) of including an AC3 passthru track on audio that's 2.0 or Dolby Surround? Should I keep encoding it to Dolby Pro Logic II? Will it sound any different (it will be the same size)? If I include an AAC track and an AC3 passthru track, the audio uses either 160+192 kbps or 160+384 kbps, which kind of defeats the purpose of encoding to achieve a smaller file size. The default setting is Dolby Pro Logic II. The AAC mixdown options are mono, stereo, Dolby Surround, Dolby Pro Logic II, or 5.1 discrete. The 2.0/surround sound shows up at a bitrate of 192 kbps and the 5.1 is 384 kbps. The source audio shows up always as AC3 and is either listed as 2.0 or Dolby Surround for the Standard Definition stuff or 5.1 for the HD shows. That being said, I wonder if it's really necessary to even include an AC3 audio passthru track on the encode in addition to the AAC track. There are fixes - codec packs or use VLC.
#AC3 5.1 448 KBPS MP4#
mp4 files that have an AC3 audio track embedded in them. mkv files, but WMP and WMC can't natively read. I have a TV tuner and am recording more shows than is healthy. I feel odd this being my first post considering I've been reading Anandtech since 2000.