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level calibration
so:
am3 card-mac platform-pt4.3.2 1. created full level (constant 0db) soundfile. 2. set fader at 0 3. ran output to mackie, meters show 0 on mixer (good so far) 4. routed full level sound back into am3 5. same soundfile registering at 0 on mackie now registers at about -9db routed back to pt 6. changed hardware setup to +9 db input gain, now levels are darn close but not the same. shouldn't i be able to set everything at zero and have it calibrated? this is annoying. my whole point of doing this was to calibrate a compresser to live full time in between my mixer and the inputs of the am3, not to affect sound quality, but to protect against the unlikely possibility of a flash peak. It has been my experience that if i keep my input levels hot it tends to sound better (fuller- less brittle). i believe this is do to the increased resolution of the higher bit rate achieved by the hot level. (i.e. if you record at -6db you don't get 16 bits- you get less). i'm not looking for a squishy sound. has anyone done any testing on the calibration of this card? i would like to have a calibrated system so i can set my master fader on the mackie at 0 and have 0 at the am3. the return seems calibrated- my board IS puttin out o, as i have tested it on other gear and it reads 0. thanx in advance |
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