It has been known for some time that WaveNet can be greatly sped up, and exponentially so. See https://arxiv.org/abs/1611.09482 https://arxiv.org/abs/1611.09482

It has been known for some time that WaveNet can be greatly sped up, and exponentially so. See https://arxiv.org/abs/1611.09482 https://arxiv.org/abs/1611.09482 (Fast Wavenet) for an example.