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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: rough calculation... posted by chillysalsa on November 18, 2002 at 18:01:03:
but I definitely didn't have any of that sort of information.Building on your comments, the stylus is really only producing musical information when it's direction of travel or speed changes because of irregularities in the groove wall. A totally smooth, unmodulated groove like the lead in and lead out grooves produces no sound at all, or as close to that as possible.
The question then becomes how many changes in travel can you pack into a second of music which is what your calculations address. As you point out it's higher at the start of a side than the end, so the 'sample rate' is always changing.
So, some further questions:
1 - Given that not all music requires as many modulations to the groove wall as can be packed into the space at maximum density, does that imply that the sample rate is lower when the groove wall isn't heavily modulated? and
2 - Given stylus tracking constraints, is there a limit to the density of modulation that can be tracked which is lower than the figure in your calculation and does that imply a lower sample rate as well?
David Aiken
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Follow Ups
- That's the sort of calculation I would have thought about… - David Aiken 00:17:57 11/19/02 (2)
- But now that I've thought further… - David Aiken 12:09:40 11/19/02 (1)
- It seems comparison is like round peg in square hole - chillysalsa 13:13:39 11/19/02 (0)
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