[sdiy] Using analog for physical modeling

[Chris Muir]

On Sep 20, 2011, at 1:39 PM, Tom Wiltshire wrote:

> For me, the significant thing about the proposed BBD-based KS synthesis system is not the continuous levels, but rather the variable sample rate. One of the big problems with typical digital systems is the fixed sample rate, which means that you finish up needing to interpolate between the available data to get sub-sample increments (not that it hasn't been extensively studied and dealt with - it has). Everyone who's worked with fixed sample rates will have come up against this at some point. A genuinely variable sample rate such as is provided by a VCO BBD clock avoids this issue completely.


Well, there is nothing stopping anyone from implementing variable sample rate digital systems. They've been done before. If it wasn't for the overwhelming cost savings of mixing digitally and sharing one DAC between multiple voices, we might still see systems like this today.

I was involved in a couple of designs of delays based on BBD chips in the dim dark past, and I guess I still haven't gotten over the trauma. :-)

 – C

"Thar’s only two possibilities: Thar is life out there in the universe which is smarter than we are, or we’re the most intelligent life in the universe. Either way, it’s a mighty sobering thought." 
                                             – Walt Kelley (as Porky Pine)
Chris Muir - cbm at well.com