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Found on the internet :
2. Instead of re-flagging, apply software de-emphasis to the pre-emphasised
wav file on your HD. Use a wave editor such as CEP/SF/Wavelab equipped with
the Waves Direct X plugin - Waves Q 10 Paragraphic software preset "DAT-CD
de/pre-emphasis". That has served me well for re-balancing some old PCM 601
tapes.
3. If you don't have this plugin then you can get always get an
approximation to the de-emphasis curve using a graphic or multiband
parametric equalizer.
If it is any help, you can generate your target 15/50us EIAJ de-emphasis
curve using the following equation:
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y = 10log(A/B) - 10.4576
where:
y = dB output at a frequency of f Hz
A = 1 + 1/(H x H)
B = 1 + 1/(L x L)
H = (2 x pi x f x t(H))
L = (2 x pi x f x t(L))
t(H) = high freq. time-const (0.000015 sec)
t(L) = low freq. time-const (0.000050 sec)
10.4576 just normalizes the response relative to 0 Hz = 0dB
(make the dB figures all pos. or all neg. for pre- or de-emphasis, resp.).
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Hope this helps....oh, and I'm pleased with Cool Edit Pro at its slowest
setting for 48->44.1 resampling.
cu, Andre
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