In Reply to: RE: he's not completely wrong ... posted by knewton on March 15, 2012 at 12:20:47:
I make 44/16 recordings using an apodizing filter. They will sound best when played back with a SINC filter, and perhaps slightly rolled off but still not unpleasant when played back through an apodizing filter. Older recordings made with a SINC filter will sound smoother when played back with an apodizing filter. Thus for best results one may wish to have a choice of playback filters available.
The problem with apodizing filters is that they will ring unless they are very slow roll-off. There is a tradeoff between loss of high frequency detail (dullness and air), harshness (aliasing) and image blurring (ringing) that are unavoidable mathematically given the 44.1 kHz sampling rate. If the original live music had significant high frequencies, there will be unavoidable loss of fidelity when running at this sample rate, and it will appear in different guises according to the tradeoffs made by the recording engineers or equipment designers. Because of these unavoidable tradeoffs, 44.1 kHz recordings will never reproduce anything close to the sound of a live microphone feed, but results can be very good if things go well.
Tony Lauck
"Diversity is the law of nature; no two entities in this universe are uniform." - P.R. Sarkar
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Follow Ups
- RE: he's not completely wrong ... - Tony Lauck 14:21:30 03/15/12 (0)