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Room Calibration - ATSC Standards - Help
Need a little guidance (Marti?)
I'm re-calibrating my room... 1027 cubic feet. I've followed the ATSC standard that Marti posted at the top of the forum (sticky). 1) I calibrated my system with the 440 signal. I'm on an LE 003 Rack system with a Durrough stereo digital meter. I've calibrated the 003 volume knob to make the Durrough read -20dbfs per channel (2). 2) I used the band-limited pink noise and my SPL monitor controller volume knob and Radioshack digital SPL meter to calibrate the level at 76, as per the cubic size of my room. I set the volume knob and marked the position, each speaker measures the same level. 3) Here's my problem. I downloaded the speech sample that the ATSC paper mentioned, dubbed it to stereo and played the file (they say it's measured at -24 LKFS (loudness)). When I play this file it's very loud, not at all what I would mix at. They say adjust for comfortable mixing level but can't figure why they'd have me go and change any levels. I thought this was calibration. If I do change the level to a normal one, a listening level I'd mix Dx at, then the speech falls at -31dbfs, or around there. Is this right???? I'm posting the last paragraph from the ATSC paper for clarification. I appreciate any help in figuring this step out. -Mike ---------------- Quote:
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