Where can I get mp3 format info and decoding info?

Pradeepan.
Posted on 2002-07-06 22:15:45 by Pradeepan
A quick search on the board is always helpfull:

http://www.asmcommunity.net/board/index.php?topic=5472&highlight=mp3
Posted on 2002-07-06 23:52:35 by bazik
I was creating an mp3 player, 2 months ago and I ditched it because XAudio didn't respond to my request for a free license of their codec. :( Try searching google for comparisons...I've heard LAME is good but there are other codecs out there...I have madlib but I can't get it to work since there was no documentation of the functions involved. :(
Posted on 2002-07-07 00:10:33 by stryker
The MP3 format is described in the ISO standard "ISO/IEC 11172 - Coding Of Moving Picture And Associated Audio For Digital Storage Media At Up To About 1,5 Mbit/s - Part 3: Audio)."

You can download the file at www.mp3-tech.org (in the programmer's section, technical audio papers)
Posted on 2002-07-07 01:12:54 by Dr. Manhattan
Thanks for the links. Soon as I created my own mp3 decorder
I will post it here.
Pradeepan.
Posted on 2002-07-07 05:55:53 by Pradeepan
This will be a daunting task.. so dont get too agressive, and burn out ;)

If your looking for any advice/help on this topic as you sift thru teck papers, i would be happy to offer any advice i can (software wise ~ i dont know mp3's tho). Im only intersted in seeing a masm mp3 decoder for general public use... we need one ;)

Best of luck..
:alright:
NaN
Posted on 2002-07-07 22:31:39 by NaN
Posted on 2002-07-08 05:02:50 by grv575
LAME is excellent AND free. Very fast too, faster than realtime encoding I think on PII 233?
Posted on 2002-07-08 12:12:38 by comrade
Why not use OGG Vorbis rather than MPEG III? OGG sounds just as good. Its free also! I'm using it in my sound engine that I'm coding for my game(s) and other projects.
Posted on 2002-07-08 14:30:23 by x86asm
Where can i find a decoder, encoder and information about OGG files?.

Thanks.
Posted on 2002-07-09 01:08:33 by r00t
Posted on 2002-07-09 01:59:15 by stryker
www.xiph.org is the place to go for developing Ogg Vorbis. It surpasses mp3 in sound quality and file sizes. Plus it's totally patent clear. :alright:

Dig
Posted on 2002-07-09 04:37:42 by dig
No point in wasting your time with the Fraunhofer Institute. Go with OGG, its open souce!! :D
Posted on 2002-07-09 13:36:01 by x86asm
OGG rocks! To bad, I don't "make backups" of music CD's myself. So I still use Mp3... *if* I rip something myself, I use OGG, too.
Posted on 2002-07-09 14:01:05 by bazik
This link contains very good info on MP3.
http://www.kmlager.com/thesis.html
Pradeepan.
Posted on 2002-07-09 23:39:30 by Pradeepan
I just saved the PDF article because I plan to implement it in my sound engine sooner or later. It seems like this article will tell you how to decode the MP3 packets. Good scouring Pradeepan.
Posted on 2002-07-10 10:49:47 by x86asm
The BASS, BASSMOD, and FMOD libraries are free and can handle a large amount of audio formats:
BASS, BASSMOD - http://www.un4seen.com/music/
FMOD, minifmod - http://www.fmod.org/
Posted on 2002-07-10 12:54:39 by comrade