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From: Patent Tactics, George Brock-Nannestad Jeff Carroll wrote > As analogue archiving standards go, emphasis has always been placed on flat, > unprocessed transfers. ----- what is recognized as FLAT transfers these days? I see 3 possibilities: 1) taking the signal from the pickup cartridge, linearly amplified to the maximum level tolerated by the A/D device 2) taking the signal from the pickup cartridge, linearly amplified and then compensated by the inverse of the transfer function of the cartridge itself when hooked up to this particular preamplifier 3) taking the signal from the pickup cartridge, as in 1) but amplified in inverse proportion to the frequency from the corner frequency of e.g. 250 Hz (thus taking into account the changeover from "constant velocity" to "constant amplitude"). FLAT would under no circumstances mean "using a de-emphasis curve to equalize the pre-emphasis given at the time of recording" (for instance a high frequency boost to reduce hiss at de-emphasized playback) My clear preference is for 2) although that requires the step of calibrating the pickup. 1) may work, but then the transfer function of the pickup must also be recorded - again calibration. 3) I like the least, because the choice of corner frequency is pretty arbitrary if you do not know precisely what it was at the time of recording. Kind regards, George