mirror of https://github.com/rhasspy/piper
You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
21 lines
636 B
Python
21 lines
636 B
Python
import numpy as np
|
|
import torch
|
|
|
|
from .monotonic_align.core import maximum_path_c
|
|
|
|
|
|
def maximum_path(neg_cent, mask):
|
|
"""Cython optimized version.
|
|
neg_cent: [b, t_t, t_s]
|
|
mask: [b, t_t, t_s]
|
|
"""
|
|
device = neg_cent.device
|
|
dtype = neg_cent.dtype
|
|
neg_cent = neg_cent.data.cpu().numpy().astype(np.float32)
|
|
path = np.zeros(neg_cent.shape, dtype=np.int32)
|
|
|
|
t_t_max = mask.sum(1)[:, 0].data.cpu().numpy().astype(np.int32)
|
|
t_s_max = mask.sum(2)[:, 0].data.cpu().numpy().astype(np.int32)
|
|
maximum_path_c(path, neg_cent, t_t_max, t_s_max)
|
|
return torch.from_numpy(path).to(device=device, dtype=dtype)
|