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Topic: MP3 & Dolby ... (Read 3621 times) previous topic - next topic
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MP3 & Dolby ...

An mp3 file is two-channeled. For Dolby Digital a mp3 is out of the question and AC3 must be used.
If i compress the sound of a movie in mp3 and use stereo, would it preserve the Dolby Surround ProLogic effect? What about Joint-Stereo?

MP3 & Dolby ...

Reply #1 –
I don't belive noone knows!
Come on people. Is it too hard to write two rows text?

MP3 & Dolby ...

Reply #2 –
Depending on the compression level, it will be preserved.
Joint stereo (mid-side) is actually better than basic stereo at preserving surround info.

MP3 & Dolby ...

Reply #3 –
Quote
I don't belive noone knows!
Come on people. Is it too hard to write two rows text?
I don't believe YOU don't know.
is it too hard to be a little more friendly and patient if you want others to help you?
Nothing but a Heartache - Since I found my Baby ;)

MP3 & Dolby ...

Reply #4 –
Deleted

MP3 & Dolby ...

Reply #5 –
Quote
Quote
I don't belive noone knows!
Come on people. Is it too hard to write two rows text?
I don't believe YOU don't know.
is it too hard to be a little more friendly and patient if you want others to help you?
[a href="index.php?act=findpost&pid=257648"][{POST_SNAPBACK}][/a]


OK, i'm sorry. I guess i was having a bad day and not seeing a response had made me cranky.
Now about the surround. Forgive my ignorance but how exactly does Joint Stereo preserve the surround effect better? And which is the minimum compression level (bitrate) at which the surround is fairly preserved?
 

MP3 & Dolby ...

Reply #6 –
When I first entered this forum about a year ago, I quickly learned that most people here are hard-working experts/geeks who are extremely easy to irritate with too nooby questions containing lots of technical data asked in an aggressive style.

My advice to any new members: In case you don't know anything, shut up and read the forums. You'll probarly not find exactly what you're looking for very fast, but checking this place out now and then is a long time investment that will pay off later, depending on how much time you have to read endless topics on command line parameters and processor optimized builds. If you feel like you might get cranky after 8 hrs without the thread flooding of useful answers, do not post here. I've learned most of the basic LAME-stuff on other forums like the "general discussions" section of http://forums.winamp.com.

You can check the competense level of any other general computer forums by asking for an intro to mp3. If they tell you to use Musicmatch; do for Gods sake run like hell, duck and cover and that sort of stuff. But if someone tells you to use the LAME --alt-presets you know you're in a decent place.

this post is written in  -mode (not meant to be taken too serioulsy, but still good advice)