How come mp3s are so small? |
How come mp3s are so small? |
 Oct 24 2004, 16:38
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Group: Members Posts: 97 Joined: 3-November 03 Member No.: 9637  |
Just a quick question (with hopefully a quick answer):
If I take a CD that is 44,100 bits per second, with 16 bit sound and 2 channels then that comes to just over 1378 kbps (correct me if I'm wrong). Yet 320kbps is the highest setting for an mp3 (again, correct me if I'm wrong). It's certainly the highest setting for LAME that I'm aware of. So even the highest quality mp3 is less than a quarter of the size of the original CD. How come they are so small, yet you don't hear any difference? Is there a quick answer to describe how so much information is lost? Thanks. |
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Grand Dizzy How come mp3s are so small? Oct 24 2004, 16:38
MugFunky simple - lossy audio codecs take out the bits you ... Oct 24 2004, 16:43
Grand Dizzy QUOTE (MugFunky @ Oct 24 2004, 07:43 AM)...a ... Oct 24 2004, 19:05 SebastianG QUOTE (Grand Dizzy @ Oct 24 2004, 10:05 AM)QU... Oct 24 2004, 20:03 Sebastian Mares Lossy audio codecs leave out information which is ... Oct 24 2004, 16:43 Cygnus X1 From other threads, I've heard that lossy code... Oct 24 2004, 19:49 Sebastian Mares QUOTE (Cygnus X1 @ Oct 24 2004, 08:49 PM)From... Oct 24 2004, 19:55 SebastianG QUOTE (Cygnus X1 @ Oct 24 2004, 10:49 AM)From... Oct 24 2004, 20:07 dreamliner77 One way to think about it that PCM is CBR. Simila... Oct 24 2004, 20:07 analogy The big difference, which everyone just sort of as... Oct 24 2004, 21:11 SebastianG QUOTE (analogy @ Oct 24 2004, 12:11 PM)MP3 do... Oct 25 2004, 07:39 Grand Dizzy analogy,
Wow, you seem to know a lot about this. ... Oct 24 2004, 21:52 kjoonlee QUOTE (Grand Dizzy @ Oct 25 2004, 12:38 AM)Ju... Oct 25 2004, 08:07 Grand Dizzy QUOTE (kjoonlee @ Oct 24 2004, 11:07 PM)In th... Oct 25 2004, 19:10 stephanV yep
the only two exceptions i know of when 1 kbit... Oct 25 2004, 19:25 Gabriel 1000/1024 issue:
Usually a kbit is 1000 bits, whe... Oct 26 2004, 08:55 Gabriel MP3 introduction:
http://www.mp3-tech.org/tech.htm... Oct 26 2004, 08:56 NeoRenegade Actually, a kilobit is 1000 bits. A binary kilobit... Oct 27 2004, 03:30 SebastianG QUOTE (NeoRenegade @ Oct 26 2004, 06:30 PM)Ac... Oct 27 2004, 10:17 NeoRenegade QUOTE (SebastianG @ Oct 27 2004, 04:17 AM)QUO... Oct 29 2004, 20:48 stephanV K is also Kelvin (temperature) Oct 29 2004, 22:30 Grand Dizzy QUOTE (NeoRenegade @ Oct 26 2004, 06:30 PM)Ac... Oct 27 2004, 23:23 Omion QUOTE (Grand Dizzy @ Oct 27 2004, 03:23 PM)QU... Oct 28 2004, 00:21 Grand Dizzy QUOTE (Omion @ Oct 27 2004, 03:21 PM)BTW2: I... Oct 30 2004, 01:52 ancl QUOTE (Grand Dizzy @ Oct 27 2004, 11:23 PM)QU... Oct 28 2004, 00:30 Sebastian Mares AFAIK...
kB = 1 * 1000 bytes
KB = 1 * 2^10 bytes Oct 27 2004, 13:56 menders Here is what Wikipedia says on the subject for any... Oct 30 2004, 06:57 analogy Actually, the 1.44 MB of a floppy is in decimal me... Oct 30 2004, 09:35 k.eight.a I don't want to terminate your entertainment b... Oct 30 2004, 13:10 Grand Dizzy Well, I started the thread, and I don't object... Oct 30 2004, 17:12  |
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