cerberus wrote on Wed, 23 August 2006 23:31 |
in terms of basic goals for basic room treatments: what would be the typically optimal rt60 for a control room configured for tracking and mixing? an edit suite? a mastering suite?
jeff dinces
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RT60 can vary pretty widely per octave band (lower is usually longer), and when quoted without reference to the octave band, one will generally assume that it is referring to the 500 Hz or perhaps 1 kHz band as the time in that range will usually coincide with a person's general impression of a room when walking in and talking or clapping one's hands.
However, if you are going to design with decay times in mind, it is important to have RT60 design goals for different frequency bands, because having 5X the decay at 125 Hz that you have at 1 kHz is not going to be very pleasing. Such disparity can happen in a room with lots of foam or thin fiberglass, but no bass trapping. If you just plan and measure at 1 kHz, you'll be left scratching you head as to why the room isn't working out as expected.
Looking forward to Fran's answer, and hopfully he will address the differences per band as well.
By the way, do you prefer Francis to Fran? How would you like to be addressed?
Thanks!