mirrors/icefall
1
0
Fork 0
mirror of https://github.com/k2-fsa/icefall.git synced 2025-09-18 13:34:20 +00:00
Code Issues Packages Projects Releases Wiki Activity

Fix

Browse Source
This commit is contained in:
Yifan Yang 2023-07-06 22:04:00 +08:00
parent 438fef7215
commit ccdacc1b44
2 changed files with 8 additions and 7 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
egs/librispeech/ASR/icefall-asr-librispeech-pruned_transducer_stateless7_ctc_bs-2023-01-29 Submodule

@ -0,0 +1 @@
Subproject commit 9417bd9bc4aae7ada8b7943f5849828eecbf3c91

14
egs/librispeech/ASR/pruned_transducer_stateless7_ctc_bs/frame_reducer.py
View File

@ -81,20 +81,20 @@ class FrameReducer(nn.Module):
fake_limit_indexes = torch.topk(
ctc_output[:, :, blank_id], max_limit_len
).indices
T = (
T_arange = (
torch.arange(max_limit_len)
.expand_as(
fake_limit_indexes,
)
.to(device=x.device)
)
T = torch.remainder(T, limit_lens.unsqueeze(1))
limit_indexes = torch.gather(fake_limit_indexes, 1, T)
T_arange = torch.remainder(T_arange, limit_lens.unsqueeze(1))
limit_indexes = torch.gather(fake_limit_indexes, 1, T_arange)
limit_mask = torch.full_like(
non_blank_mask,
False,
0,
device=x.device,
).scatter_(1, limit_indexes, True)
).scatter_(1, limit_indexes, 1)
non_blank_mask = non_blank_mask | ~limit_mask
@ -108,9 +108,9 @@ class FrameReducer(nn.Module):
)
- out_lens
)
max_pad_len = pad_lens_list.max()
max_pad_len = int(pad_lens_list.max())
out = F.pad(x, (0, 0, 0, max_pad_len))
out = F.pad(x, [0, 0, 0, max_pad_len])
valid_pad_mask = ~make_pad_mask(pad_lens_list)
total_valid_mask = torch.concat([non_blank_mask, valid_pad_mask], dim=1)