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Digital Drive Upsamplers, DACs, jitter, shakes and analogue withdrawals, this is it. |
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Digital Drive Upsamplers, DACs, jitter, shakes and analogue withdrawals, this is it. |
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In Reply to: Re: a decent paper indeed posted by Dave I on February 22, 2001 at 14:46:11:
Dave wrote:> Just changing the filter slope on a digital filter such as the DF1704 (or to a lesser extent with the CD players that have multiple filter coefficients) and allowing alias products and associated noise components through very much opens the sound on CD playback.
Or better yet IMO, getting rid of the digital filter altogether as in the Audio Note and Lab 47 non-oversampling DACs. The aliasing *problems* (more in theory than in the listening) are still there, but it does also eliminate the time domain distortion (pre and post echos -Gibbs Phenomena) that all FIR digital filters add.
> Many factors are at work that are not easily explained.
Exactly. :-)
Cheers,
-Steve
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Follow Ups
- Re: a decent paper indeed - -Steve 02/22/0118:16:07 02/22/01 (0)
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