about soft and hard quantization

[Linli621]

hello, I don't figure out that when testing the model , why to use the hardout for the input of the P network .In my opinions ,the hardout and the symbols are equal in a sense .

[fab-jul]

I think one contains values at the symbols. e.g. if your quantization grid is:

levels = [0.2, 0.5, 0.7]

and your symbols are

sym = [0, 0, 1, 0, 2]

then we would ahve

hardout = [0.2, 0.2, 0.5, 0.2, 0.7]

The important bit being that we can have non-uniform quantization.

[Linli621]

Thanks a lot, I have figured it out.^_^