Delta Sigma modulation noise problem~! Help

Started by Leaf January 9, 2006

We all know that DSM is good because it's abaility to push Q noise to
higher frequency band.

My question is does DSM only work for Q noise?

What about if the data already corrupted by noise? therefore would DSM
work if the noise is the combination of background and quantization

I have done some matlab coding(first order) on it and it works a bit
but i dont know if it's because of the lowpass filter or the DSM.

My project is trying to apply the DSM to clean noise of a corrupted
voice file. (Software Based)
Any Help will be great~!!!!