[sdiy] Digital audio demo on Youtube

[Eric Brombaugh]

On 02/18/2014 12:33 PM, cs80 at therogoffs.com wrote:
> I’ve read about the affects of ZOH using standard sample/hold DAC outputs but what’s the alternative?  In mathematical theory, the DAC output should be zero-width pulses whose area equal the sample value.  Do you have pointers to articles / part specs on DACs that try and approach this?
>
> There’s also DSD, but that’s a whole other can of worms and I assume that isn’t what you were talking about.

Typically the solution is oversampling and interpolation. Inverse sinc 
correction and a decent reconstruction filter can also be used where 
oversampling in the digital domain isn't possible, but for audio that's 
usually not a problem.

Eric