Hi Anthony
The place where you are converting the float position of your delay into
an integer is the one which may be responsible of your crackling
problems. When you modulate a sample position in a delay line, you must
use interpolation schemes to take into account the fact that the sample
I have no argument at all with the cheap high-pass TPDF dither; whenever it was
published the original authors undoubtedly verified that the moment decoupling
occurred, as you say. And that's what is needed for dither effectiveness. If
you're creating noise for dither, you have the option to
The linear interpolation function looks ok to me, though it is overly
complicated for no reason. You have a couple pd errors in setting your
pointers now. I am sure you can find them fairly easily
Original message
From: Anthony P acousticscomman...@gmail.com
Date: 08/02/2015
On 2/7/15 8:54 AM, Vicki Melchior wrote:
Well, the point of dither is to reduce correlation between the signal and quantization noise. Its effectiveness requires that the error signal has given properties; the mean error should be zero and the RMS error should be independent of the signal. The
Vicki,
If you look at the limits of what is possible in a real world ADC
there is a certain amount of noise in any electrical system due to
gaussian thermal noise:
http://en.wikipedia.org/wiki/Johnson%E2%80%93Nyquist_noise
For example if you look at an instrument / measurement grade ADC like
