Playbook not support AC3 audio
I have a bunch of avi files that will not play on my PLaybook (video awesome but no sound). I purchased an HDMI cable and can play only one of them with sound. I don't know of anyone that has an HD TV that does not have surround sound, which the AC3 audio format supports. Why would I have to pay for additional software to convert the audio down to mp3 (which is basic 2 speaker stereo) when the Playbook is designed for HDMI?
Should there not be some soft of built in conversion tool to convert to mp3 if playing on the playbook and support AC3 when connected to HDMI? Seems silly to have to manually convert everything to watch on my PB (or literally have to test everything first).
- 08-13-12, 09:53 AM #2
Same here and i'm very upset with it.
I bought an app to play MKV files, but it didnt work because most of those files have AC3 audio extensions...
Have you an adapter to use the tv's hdmi?
Sent from a old but beautiful BB 8520 or a new and shinny PB 2.0
- 08-13-12, 09:55 AM #3
Well, if you have a home theater then for that you have something called Blu-Ray discs which get you all the surround etc. via your HDMI. 20GB a movie.. No one expects you to stream that kind of stuff or have it on your PlayBook..
Any which ways.. It's about licensing.. which obviously should not fall through.. just waste of some money to support piracy.. because ideally if you have AC3 data.. you should have the original source..
There's Freemake which is free and converts to PlayBook supported format.. You can just keep the audio bitrate high in conversion and use Dolby PLII which basically converts your stereo input to surround output.. since you have Dolby support already for you wanting AC3..
- 08-13-12, 10:05 AM #5
It seems silly to not understand anything about AC3 and then complain about it.
AC3 is a codec designed for very high bandwidth bitrate playback. It is not designed for low bitrate playback such as internet video --- therefore NONE of the legal internet video stores (i.e. netflix, itunes video stores) use AC3 for their movies. Since AC3 sucks a lot of bandwidth and not suitable for internet videos --- the audio chipset manufacturers never implemented AC3 on hardware. Since it is never implemented on hardware, it would have sucked a lot of battery to do the decoding in software.
Dolby also wants a lot of money for AC3 licenses --- which NONE of the tablet makers/smartphone makers intended to pay (especially for a technology that is not suitable for portable devices).
The only software that would be available on ipad/android --- are from one man app companies that grab some sort of open source ac3 decoder projects and basically illegally (i.e. without paying Dolby a licensing fee) distribute them onto the ipad/android app store. These one man app companies get away with it because they are too poor for Dolby to sue them.
- 08-13-12, 10:16 AM #7
- 08-13-12, 10:32 AM #9
The people who complain loudest about this issue tend to be content pirates who are upset that their latest torrented copy of "xyz summer blockbuster or booby/slasher flick" won't play on their PB. Oh, and they're probably about 15 years old, so...
RCK (profiling miscreants since 1972)
Sent from my BlackBerry Runtime for Android Apps using Tapatalk 2
Last edited by rkennedy01; 08-13-12 at 10:35 AM.
- 08-13-12, 11:38 AM #10
You could have used the AAC format with surround sound. Even mp3 at 320 would do if you are using a Dolby receiver.
AC3 is proprietary Dolby format and licensing will forever be an issue.
Ripping should always be done in open source format for this very reason. If you know what you're doing, there should be no quality loss in the conversion.
Are you ripping Blurays under 2GB?
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- 08-13-12, 11:44 AM #12
Just choose mp4 in Freemake and pick the closest resolution to your existing file for the conversion. Right click, properties on the file and check resolution. In freemake pick the one same or lower than yours.
You should have an mp4 file with supported audio codecs which will run on your playbook.
Its not a good idea to play lot of movies from the playbook anyways.. Its your choice.
If you have a external hdd or even a pen drive support on tv it's more suitable..
- 08-13-12, 12:14 PM #14
HDMI has nothing to do with AC3,
and the PlayBook supports a variety of formats - that can give you 5.1 if you want...
BlackBerry - Supported Media - Manuals and Guides
also - IF you have a computer on your network, You should try "StreamingNow", which will convert on-the-fly most "normal" formats and combinations, and streams flawlessly to your PlayBook!
1. I DO have a media centre (my Xbox) for streaming media at home.
2. I do NOT have a Blu Ray player. Who wants to buy media and have to store them like I did with DVDs? Not me.
3. I use the Playbook for travel. How annoying was it to try and watch the 3 movies I copied onto my Playbook on the plane without sound? Extremely.
What I was basically saying was that of all the avi files I have downloaded, they have all been AC3, so obviously there seems to be some sort of standard for the majority of users out there. Would have been nice to actually watch/hear them on my playbook without having to take hours to convert them.
I've tried the Avi type using the original video and it's now unwatchable. Trying the ipad 2 suggestion, which erks me just to have to choose that as an option (3 hours later still going).
With a PC, if there's a codec issue, you just download a codec. If I can download a codec to my Playbook then I'm obviously missing something.
- CrackBerry Genius
08-13-12, 02:25 PM #16
- 3,597 Posts
There are two free PC programs I use. MediaInfo will tell you what the audio and video codecs your file uses before transferring to your PB. The second is Xvid4PSP, which will allow you to convert a full length movie in 7 to 10 minutes. Set video to "copy" and audio to AAC (or MP3).
- 08-13-12, 04:03 PM #18
AVIDemux is the software I use. Like Xvid4PSP you can convert the audio without converting the video. This saves a lot of time. Unlike AC3 these programs are both free.
AC3 is usually only used in pirated movies and TV shows and also being used a lot less than it used to be. MP4 is becoming the standard.
- 08-14-12, 01:14 AM #22
Yes MP4 is a container that can hold AC3 audio.. But the Playback of this file will be very limited across devices.. Forget portable devices completely.
AC3 is not a portable device format.. Just like you don't carry WAV files on your portable music player..
Sure music players can support WAV files, but what they cannot support is a multi-channel WAV. It will play noise.. So you can't say that they should give Multi-channel WAV support because you downloaded that from the Internet and now want to plug-in your music player to the surround sound system and want 5.1 surround audio..
For the OPs thread title - I don't even see any reason why PlayBook should support AC3 audio. Haha my PlayBook is just 32 GB.. 28 GB of what I can use.. I have The Godfather at 20+ GB (each).. obv with DTS audio.. but even with AAC some BDRips go pretty high in size.. and then AC3 wouldn't help there.. Point is.. If you go from 20GB to 2GB - AAC, AC3, DTS should be the last of your concerns.. You should get a file which has the most compatibility. Which obv is AAC..
Last edited by varunsain; 08-14-12 at 01:19 AM.
- 08-14-12, 04:29 AM #23
i wonder why there are open AC3 decoders (like used in mplayer or VLC) that dont have any legal problems with Dolby? i mean VLC is a huge project if it would be illegal it would have been shut down. Why is it impossible for rim to base there videoplayer on an open player?
Anyway, i find this annoying too. I have ripped my whole dvd collection to h.264 + surround ac3 a year ago for my new HTPC and if i want to watch them on my playbook i have to convert the audio track. this doesnt take that long on my 4 core PC but its still a bit annoying.
Hope they port mplayer or VLC over in the future.
- 08-14-12, 07:21 AM #24
- 08-14-12, 08:13 AM #25
Wonder if a app released in the official app world would be OK, i mean there are 3rd Party players released in Apple Appstore or Android Marketplace even tho both are US Companies. So RIM could port the player, public release the compiling changes, and voila but i doubt this would happen, but wait didnt RIM start an XBMC port (based on mplayer as far as i know)
Sadly all those opensource ports project seem to be abondend for some month now.