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----- Original Message ----- From: "Don Cox" <[log in to unmask]> > On 03/06/07, Steven C. Barr(x) wrote: > > The applicable question here is not too hard to define...though > > difficult to answer! "Is it possible, using a recording of > > admitted (but not accurately defined) sonic inaccuracy, to > > recreate using digital methods an accurate recreation of > > EXACTLY what was recorded using earlier inaccurate methods?!" > > > It depends on the nature of the inaccuracy. > Equalisation problems can be solved quite easily. Nowadays, many clicks > and some crackle can be removed digitally. > Intermodulation distortion would be very hard to correct. Resonances are > hard, as they vary with level. > Bad microphone placement, especially close micing, would be very hard to > correct unless multi-track tapes exist with the outputs from each mic > kept separate. (Which is not usual in the 1950s). > You can't correct a problem until you have analysed it, identified it > and studied it. Recordings have many different and independent faults. > Remember that these Gennett phonorecords were recorded acoustically... which means the frequency response was essentially defined by now- unknown details of the recording horn, as well as the minimal bandwidth inherent in the acoustic-recording process... Steven C. Barr