[sdiy] Micro as a Linear to Exponential converter?

[Antti Huovilainen]

On Fri, 14 Aug 2009, Justin Owen wrote:

> i.e. scaling - say MIDI Pitch info - on chip, to an Exponential CV 
> output (via a dedicated DAC), instead of outputting a linear CV and then 
> using one of the traditional discrete Lin to Exp conversion methods.
>
> Possible? Incredibly difficult? Stupid?

The code part is trivial. The difficulty is in avoiding quantization, 
resolution error and aliasing. Basically it's all about ADC and DAC 
accuracy and speed.

Antti

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