Hi, as far as I know, the info you're looking for is not in the ID3 tags (which are not mandatory by the way).
An mp3 file is a formed by an arbitrary number of "frames", which carry information about "chunks" of the sound stream; each one contains a header and the actual audio data. There's no "global" file header, but if you're looking for the sample rate, I think it's fair to assume that the sample rate stored in the header of the first frame is the sample rate of the whole file (that might not be true if you were looking for, say, the bitrate). So, I think you can get that data if you read the file directly in binary format, look for the first frame, and read the bits indicating the sample rate. A good reference for the format spec: http://mpgedit.org/mpgedit/mpeg_format/MP3Format.html And this graphic may help to "visualize" the meaning of each bit in a frame header: http://upload.wikimedia.org/wikipedia/commons/0/01/Mp3filestructure.svg By the way, if you want to inspect the raw file, you should use an hexadecimal editor, you won't get far with a text editor. There are many available, some of them are free, like Hexplorer, which is what I've been using for a while. ( you can find it here: http://artemis.wszib.edu.pl/~mdudek/ ) I don't know much about the mp3 format specifically, but I have worked a bit with raw files, so if you want to give it a try and need some help, maybe I can lend you a hand. Cheers Juan Pablo Califano 2008/4/21, Steven Sacks <[EMAIL PROTECTED]>: > > Ben has an open source project on Google code that is the evolution of his > old classes called Metaphile. > > http://code.google.com/p/metaphile/ > > _______________________________________________ > Flashcoders mailing list > [email protected] > http://chattyfig.figleaf.com/mailman/listinfo/flashcoders > _______________________________________________ Flashcoders mailing list [email protected] http://chattyfig.figleaf.com/mailman/listinfo/flashcoders
