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db, dbspl, spl?

I have been the witness of a rather overheated topic on a forum about caraudio. The discussion goes about decibells. I think that every 3db doubles the sound pressure (law of nature). But what is the exact difference between the different types of db measures? Can anyone shine a light on it to solve this discussion.

If this is the wrong forum for this topic please excuse me :)

My bios is beeping at me

I have just finish building a new DAW. It's an ASUS P4C800-E, P4 3.0Ghz and 2 gig Corsair PC4000 (4-512 sticks), whoo hoo! It's configured for a simple IDE configuration with an OS master drive and CD-rom slave on IDE1 and an audio drive master on IDE2. All went well, no beeps or an occasionaly single beep during the installation process of OS and drivers.

AMD dual processor nightmare

My new dual processor machine is unstable with Cubase SX and totally unusable with Wavelab 4.0 and Cool Edit Pro. When I try to play a wav file in wavelab 4.0 it turns into a distorted mess after about 3 seconds. Cubase SX will record and play but I get pops and clicks when I bring the Layla console up and down...or make adjustments to the output levels.

final level adjustments

I'm trying to figure out getting my overall sound levels to where i'd like them. So far for each instrument I just have eq, then I use c1 compressor, just setting the attack and delay, nothing else, then l2 in the master with a -3 ceiling. I don't want anything squashed. Now started out should I start with the loudest elements the kick and snare? roll them up till before they peak?

your favourite squasher, squeezer, sounddestroyer

Hey all, I'm a bit curious. Which compressors (or other devices) are your favourites when it comes to totally smash drums etc and make them pump relly heavily and take a last breath of life :) Yeah, I'm talking compression as an effect, but not all of them sound cool used that way. I've found a few cool ones but I'm still looking for that ultimate sound-destruction-unit. Any favourites ?