I am confused about the decibel scale that is used on meters. I have been reading and trying to understand how meters work. I came up on a article where it was mentioned that 0db is the 'threshold of hearing' and then later in the same article it was mentioned that digital audio has a limit of 0db.

Now here's something very scary.
It is a friend of mine who found out about the following, but I checked for myself and it is true...

Though is may not be a 'mastering' subject at hand, I thought I would try this in this area of the forums first.

I just purchased a Logitek outboard LED meter -- 4 channel (as in two stereo metered pairs).

On one pair, I want to meter the outputs of a hardware synth or other analog source before my outboard mixer (which has no meter).
On the other remaining meter inputs, I want to meter the mixer's output. .before it reaches my DAW's soundcard.

QUESTIONS:

.050 .025 020?
thanks

What metering would the ME's here recommend for use in either a mixing application or a mastering application? And, hardware or software?

I need an add-on metering bridge for referencing the send levels we use to drive the amps and stage monitors. We have four seperate sends for monitors at 1) Choir monitors, 2) Pulpit monitors, 3) Piano and Organ players, 4) Guitar and Drummer monitors.

Dear friends,
Forgive my english
How much/how hi (level) exactly when we record materials in to Pro Tools HD3 with 192 I/O.
I used to record a track as hot as posiible, but when it come to mixdown and inserted an analog gear (ie analog compressor :dbx160A,Focusrite blue etc) to that track, the level seems too hot, and clipped.
Please need advice..

My question involves metering on multiple digital sources on my Central Station.

Just a note of caution to all M-80 owners, the meters on my M-80 do not read correctly for frequencies below 200 hz. I have noticed this on two other M-80's in our area and I am wondering if they all do this? To test you take a test tone oscillator and feed the M-80 a 1 khz tone at 1 volt, adjust the gain to read 0 db on the M-80.