Brad Leigh
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Thank you John!
Brad -
John answered over in the Vegas thread.
Thanks -
Thank you John!
Brad -
Dan
I’ll give you the short answer. ( This I am sure will cause much debate )
We send pink noise out of protools at -18. ( our system -18 = =+4dB )
You will need a sound level meter. Radio shack sells them for not much money. Listen to just one speaker lets say left. Turn your master volume up until you meter reads 85 Db spl. ( I use the C weighting not the A weighting 0Mark where your volume knob is.
With out changing your volume knob, monitor one speaker at a time. Adjust the Amplifier gain for the single speaker you are monitoring to 85 dB spl. Do this all the way around the room.
The problem is often with the subwoofer, it should be 10 dB above all the others. This can be hard to obtain and I know a few mixers that set the subwoofer to 92 dB spl. When you mix you normal listening level should be at the mark you notated at 85 db spl. All the speakers should be set at 85 dB spl. Because the distance can vary the amp gains may vary greatly. ( often center turned down and surrounds up )
Now I have setup for many film mixers, and often they vary speaker placement, and sound pressure level, so enjoy the debate, but this should be a reasonable rough guide.
Brad