SV: Re: [sdiy] Roland DCOs

[Rainer Buchty]

On Tue, 26 Feb 2008, karl dalen wrote:

> In other words current errors in ordinary VCO designs give you freq 
> errors will give you spectral errors in DCO, all you do is to 
> translate one error source into another error domain.

Ah, but isn't that what made PAL superior to NTSC?

Difference in hue: easily detectable
Difference in saturation: not that visible

Same with sound. Unless we're not talking about pure sine, I doubt that 
"1% off true $FAVORITE_WAVE" is really perceivable (especially to the 
MP3-wrecked ear) -- whereas "1% off frequency" is noticed rather well 
(gives about +/-5Hz deviation for 440Hz).

Rainer