From 6baf10d5d15bed3948459b30567edd3c5898ff84 Mon Sep 17 00:00:00 2001
From: zhifu gao <zhifu.gzf@alibaba-inc.com>
Date: 星期五, 17 二月 2023 10:31:05 +0800
Subject: [PATCH] Merge branch 'main' into dev_zly
---
funasr/utils/timestamp_tools.py | 82 -----------------------------------------
1 files changed, 0 insertions(+), 82 deletions(-)
diff --git a/funasr/utils/timestamp_tools.py b/funasr/utils/timestamp_tools.py
index 33d1255..f966aee 100644
--- a/funasr/utils/timestamp_tools.py
+++ b/funasr/utils/timestamp_tools.py
@@ -4,88 +4,6 @@
import numpy as np
from typing import Any, List, Tuple, Union
-def cut_interval(alphas: torch.Tensor, start: int, end: int, tail: bool):
- if not tail:
- if end == start + 1:
- cut = (end + start) / 2.0
- else:
- alpha = alphas[start+1: end].tolist()
- reverse_steps = 1
- for reverse_alpha in alpha[::-1]:
- if reverse_alpha > 0.35:
- reverse_steps += 1
- else:
- break
- cut = end - reverse_steps
- else:
- if end != len(alphas) - 1:
- cut = end + 1
- else:
- cut = start + 1
- return float(cut)
-
-def time_stamp_lfr6(alphas: torch.Tensor, speech_lengths: torch.Tensor, raw_text: List[str], begin: int = 0, end: int = None):
- time_stamp_list = []
- alphas = alphas[0]
- text = copy.deepcopy(raw_text)
- if end is None:
- time = speech_lengths * 60 / 1000
- sacle_rate = (time / speech_lengths[0]).tolist()
- else:
- time = (end - begin) / 1000
- sacle_rate = (time / speech_lengths[0]).tolist()
-
- predictor = (alphas > 0.5).int()
- fire_places = torch.nonzero(predictor == 1).squeeze(1).tolist()
-
- cuts = []
- npeak = int(predictor.sum())
- nchar = len(raw_text)
- if npeak - 1 == nchar:
- fire_places = torch.where((alphas > 0.5) == 1)[0].tolist()
- for i in range(len(fire_places)):
- if fire_places[i] < len(alphas) - 1:
- if 0.05 < alphas[fire_places[i]+1] < 0.5:
- fire_places[i] += 1
- elif npeak < nchar:
- lost_num = nchar - npeak
- lost_fire = speech_lengths[0].tolist() - fire_places[-1]
- interval_distance = lost_fire // (lost_num + 1)
- for i in range(1, lost_num + 1):
- fire_places.append(fire_places[-1] + interval_distance)
- elif npeak - 1 > nchar:
- redundance_num = npeak - 1 - nchar
- for i in range(redundance_num):
- fire_places.pop()
-
- cuts.append(0)
- start_sil = True
- if start_sil:
- text.insert(0, '<sil>')
-
- for i in range(len(fire_places)-1):
- cuts.append(cut_interval(alphas, fire_places[i], fire_places[i+1], tail=(i==len(fire_places)-2)))
-
- for i in range(2, len(fire_places)-2):
- if fire_places[i-2] == fire_places[i-1] - 1 and fire_places[i-1] != fire_places[i] - 1:
- cuts[i-1] += 1
-
- if cuts[-1] != len(alphas) - 1:
- text.append('<sil>')
- cuts.append(speech_lengths[0].tolist())
- cuts.insert(-1, (cuts[-1] + cuts[-2]) * 0.5)
- sec_fire_places = np.array(cuts) * sacle_rate
- for i in range(1, len(sec_fire_places) - 1):
- start, end = sec_fire_places[i], sec_fire_places[i+1]
- if i == len(sec_fire_places) - 2:
- end = time
- time_stamp_list.append([int(round(start, 2) * 1000) + begin, int(round(end, 2) * 1000) + begin])
- text = text[1:]
- if npeak - 1 == nchar or npeak > nchar:
- return time_stamp_list[:-1]
- else:
- return time_stamp_list
-
def time_stamp_lfr6_pl(us_alphas, us_cif_peak, char_list, begin_time=0.0, end_time=None):
START_END_THRESHOLD = 5
TIME_RATE = 10.0 * 6 / 1000 / 3 # 3 times upsampled
--
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