Would cause unused pitch embedding vectors to be used

I guess it's a bad idea to forward inputs directly

David Rowe authored 6 years ago and Jean-Marc Valin committed 6 years ago

Signed-off-by: Jean-Marc Valin <jmvalin@jmvalin.ca>

Without the 0.1 bias, the rounding error could cause an offset of -1

Still need to properly dump as sparse.

Completes optimizations from Section 3.6 of the LPCNet paper.