- #1
Swapnil
- 459
- 6
I know that purpose of the preemphasis filter in a noise reduction system is to increase the amplitude of the input signal at frequencies where SNR is low prior to transmitting the signal. I also know that a deemphasis filter is located at the receiving end and its purpose is to undo the effects of the preemphasis filter by decreasing the signal amplitude back to its original size.
I get the general idea but I have don't know how all of this fits together. So I was wondering could anyone please tell me some specifics/details on how this type of noise reduction system works and maybe just expand upon what I said above?
I get the general idea but I have don't know how all of this fits together. So I was wondering could anyone please tell me some specifics/details on how this type of noise reduction system works and maybe just expand upon what I said above?