Home
AudioAsylum Trader
Digital Drive: Re: High Resolution Signal versus Upsampled Signal by Werner

Upsamplers, DACs, jitter, shakes and analogue withdrawals, this is it.

For Sale Ads

FAQ / News / Events

 

Re: High Resolution Signal versus Upsampled Signal

195.207.78.49


[ Follow Ups ] Thread:  [ Display   All   Email ] [ Digital Drive ]
[ Alert Moderator ]

"and truncation of such derived signals to 24 bits really does not really lose anything."

Really?

I take then that you have never designed and implemented an oversampling low-pass filter yourself?

Because more often than not, by choice of filter type or the precise nature of the window around your Sinc filter, the resultant coefficients do not sum to unity. In which case the output of the filter must be scaled to remap full-scale in onto full-scale out.
This scaling is a division that applies to all samples, original ones and interpolated ones alike.

See what's happening?

Been there. Done that. Got it cast in silicon. And the t-shirt too.




This post is made possible by the generous support of people like you and our sponsors:
  Sonic Craft  



Topic - upsampling article - solidgore 08:08:38 08/22/03 ( 47)