16 bits to 8 -- Re: [sdiy] Sunsyn,PPG wavetable oscillator.

[john mahoney]

> > Also, doesn't dithering lower noise (you said distortion)?
>
> Dithering does not lower the noise (quite to the contrary), but it
> distributes it over a wider band and/or shifts it to higher frequencies
> were it can be more easily filtered. [snip]

Well, I don't know about "quite the contrary," since dithering decreases the
*apparent* noise. :-) Before noise-shaping, CD players had dynamic range of
< 96 dB. Now, dynamic range often exceeds 100 dB.

One could argue that dithering is a form of distortion because it changes
the waveform from its "original" shape. (But hey, I know that dithering is
usually a good thing.)
--
john