Propeller Head Plaza

Posted by jneutron (A) on April 26, 2004 at 06:08:21

In Reply to: Re: How about a nope, nope, nope.. posted by Jon Risch on April 23, 2004 at 21:48:28:

JR: ""Actually, the dithering process for the more advanced ADC's use gaussian noise dither at a peak amplitude of two LSB's""

Yah, you are correct...I was just using the triangular wave example as it is much easier to visualize the ADC output as a duty cycle based percentage thing, with the 0 to 100% duty cycle easily math crunched to see the actual level..The gaussian explanation is way too math oriented to provide a good visualization for most..

JR: ""It is interesting indeed that the jitter that was most effective for Nordmark was random time interval jitter, which is essentially a guassian noise profile if truly random.""

Yah. But, given the computer he used, I'm not sure he could have introduced any particular noise. A "furby" has more cpu capability..

That was 76...I wonder if anyone has repeated it using different noise jitter spectra.

John