Digital Drive: Defining upsampling. by csown Upsamplers, DACs, jitter, shakes and analogue withdrawals, this is it.

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Posted by csown (M ) on August 27, 2003 at 08:33:56

In Reply to: Re: This Wasn't as Bad as Expected... posted by Werner on August 26, 2003 at 22:27:06:

> No, really. Do you accept marketing lingo as a defining body?

Werner, perhaps we should take time to define it now, for posterity, and use it consistently in future discussion. (though I'm sure like most of these things it will probably be forgotten by most in a few months). I am not that old, so I ws not sentient, let alone able to grasp interchangeability of the terms up- and over- in the seventies. :)

To me, upsampling is non-integer sample rate conversion, and that is what I have been using as definition until now. Oversampling is integer-multiple conversion. I believe Doug uses the same convention. I think this is largely consistent with today's marketing jargon, but perhaps not standard in the literature as you have implied. What's your perspective?

-Chris

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