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Propeller Head Plaza Technical and scientific discussion of amps, cables and other topics. |
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Propeller Head Plaza Technical and scientific discussion of amps, cables and other topics. |
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In Reply to: Re: Goodness, Gracious! posted by Dan Banquer on November 15, 2005 at 15:17:45:
Dan,i read the article - very interesting stuff. So the problem matering engineers are having is precisely a lack of the requirements mentioned above that the playback system respect the possibility of inter-sample peaking.
It's actually shocking that a lot of consumer level equipment either (a) doesn't leave enough headroom after the analog filter to deal with these peaks and (b) upsamplers saturate in the digital domain because they don't recognize that a digital peak can go up (and likely will) when increasing the sample rate.
What's interesting is the conclusion they come to that earlier digital recordings sounded better because their digital peak levels were well below full scale. This may be true for playback equipment that doesn't handle this correctly (which may actually be most of it sadly enough), but for proper DSP upsampling and well designed output circuits (which for a good high end player would allow an analog peak 5x that of the digital peak) newly mastered stuff (mastered from high sample rates and mild antialiasing filters, with dither and noise shaping) is generally leaps and bounds better than the old versions.
I can see why the mastering guys are having to change their way of dealing with their job because so much of the playback equipment out there fails miserably in something that should have been a part of any digital audio playback design.
That paper was from 2000 - I wonder if consumer level playback systems these days are any better (like iPod for example)
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Follow Ups
- Re: Goodness, Gracious! - macaque 10:39:29 11/17/05 (1)
- Re: Goodness, Gracious! - Dan Banquer 11:14:51 11/17/05 (0)
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