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In Reply to: SCD-1 filters: what parameters? posted by Lourens on December 28, 2004 at 05:58:52:
Not sure how technical this will be, but I can relate what the manual says.
Sony uses what it calls a Variable Coefficient filter which alters the frequency roll-off from sharp to slow. The Standard setting uses the sharp roll-off and filters 1 through 4 use different implementations of the slow-roll off." Sharp roll-off filters quickly cut off noise over 22.05 kHz generated during sampling. On the other hand, slow roll-off filters cut off noise generated during sampling, and are able to hold pre-ringing and post-ringing (a kind of sound smearing) in the impulse response signal to a minimum."
As you can see they (Sony) have not really provided any technical info as to their algorithm construction.
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Follow Ups
- Re: SCD-1 filters: what parameters? - JCS 01:58:10 12/29/04 (2)
- Re: SCD-1 filters: what parameters? - Lourens 02:38:12 12/29/04 (1)
- Thanks. (nt) - JCS 01:28:11 12/31/04 (0)
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