Steffen wrote on Tue, 06 November 2007 06:20 |
are there any recommended reverberation time target values for mastering rooms?
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Yes, and I'll let the experts here offer their suggestions. One thing I can say for sure is:
1) RT60 is a misnomer in small rooms, but that metric is often used anyway because it's convenient.
2) More important than overall "RT60" is having a similar decay time over as wide a range of frequencies as possible.
Okay, sorry, that was two things.
The main point being that decay times should not be averaged over the full range, but assessed in third octave bands. One classic problem is caused by treating a room with too much thin foam or thin fiberglass. This makes the room dead sounding to hand claps, but the bass is still boomy and dominant. This is why broadband absorption is the preferred approach. My mantra is absorption should be effective to as low a frequency as possible.
--Ethan