In an example[1], it sounds decent but i noticed a fuzzy white noise whenever the voice is talking. Is this the algorithm, or compression? If it's the algorithm, why?
[1]: https://soundcloud.com/user-565970875/pocket-article-wavernn...
[1]: https://soundcloud.com/user-565970875/pocket-article-wavernn...
There are two ways to avoid this: 1. predict 8 high (coarse) bits, 8 low (fine) bits separately as in the original waveRNN paper. 2. use a mixture of logistic distributions as the predictive output as in the recent Lyra vocoder from Google.
Specifically, how much slower this would be if the audio was, say, 10 bits?
I recall a lab exercise in college where we were supposed to increase the resolution of a quantizer until we reached a decent tone and 10 bits were the point at which we reached satisfying quality.
I suggest you the check the latest uploads on soundcloud.