[sdiy] Sampler mode... stereo?

Seb Francis seb at burnit.co.uk
Tue Nov 18 22:25:31 CET 2008


Seb Francis wrote:
>
> Quantising to the nearest zero-crossing has its challenges though: 
> since the sample data is stored in external SRAM it means doing 
> potentially quite a lot of SRAM reads to find the zero-crossing.  This 
> will limit the rate at which the sample point can be changed, 
> especially when you consider that start, end and loop start sample 
> points can all be changed simultaneously.  In actual fact it would be 
> better to search for the 'next' rather than 'nearest' zero-crossing 
> otherwise it doubles the number of SRAM reads necessary.
>

Thinking further about this .. it's particularly problematic with stereo 
samples where each channel probably does not have a corresponding 
zero-crossing

Maybe I should just get rid of stereo mode altogether?  No big loss I 
think....

Seb






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