Posted: 7/21/2006 9:51:15 PM EDT
|
So I'm sitting here listening to Vulgar Display of Power when I decided to play the mp3 from my computer and the CD in the CD player at the same time. After a few tries I got them to start at the same time- there was no echo and things were really in sync. But a few minutes in an acho formed that quickly got worse. So this would have to mean that the mp3 and the CD format play at different speeds, right? |
|
I don't know for sure, but it probably has something to do with the fact that audio CD players and data CD drives (on computers) do not use the same types of error correction, even if you stick the same CD in one and then the other. See here: www.cdrfaq.org/ -more particularly here: www.cdrfaq.org/faq02.html#S2-17 ~ |
| It could also be that the clock frequency in one of the devices isn't precisely the same as in the other. If the CD player is part of the same computer your'e playing the MP3 on, that eliminates my theory... In that case it probably has to do with the compression of the MP3. |
|
Unless you have a synch clock, they will be different. In recording studios, all stuff is synched with an external clock, or all the internal clocks are synched via a software link(if the gear has that ability). And in analog, they have SMPTE synchronizing formats. Alot of MIDI interfaced stuff can do this. |
That's my line of thinking too, unless the CD player is in the computer he's playing the MP3 on. In that case they are sync'd because they share the same clock. |