From 248408f92fab400d4de451742d085391d9ee7dec Mon Sep 17 00:00:00 2001
From: yhliang <68215459+yhliang-aslp@users.noreply.github.com>
Date: 星期五, 12 五月 2023 11:42:29 +0800
Subject: [PATCH] Merge pull request #506 from alibaba-damo-academy/main

---
 funasr/utils/vad_utils.py |   18 ++++++++++++++++++
 1 files changed, 18 insertions(+), 0 deletions(-)

diff --git a/funasr/utils/vad_utils.py b/funasr/utils/vad_utils.py
new file mode 100644
index 0000000..9135513
--- /dev/null
+++ b/funasr/utils/vad_utils.py
@@ -0,0 +1,18 @@
+import torch
+from torch.nn.utils.rnn import pad_sequence
+
+def slice_padding_fbank(speech, speech_lengths, vad_segments):
+	speech_list = []
+	speech_lengths_list = []
+	for i, segment in enumerate(vad_segments):
+		
+		bed_idx = int(segment[0][0]*16)
+		end_idx = min(int(segment[0][1]*16), speech_lengths[0])
+		speech_i = speech[0, bed_idx: end_idx]
+		speech_lengths_i = end_idx-bed_idx
+		speech_list.append(speech_i)
+		speech_lengths_list.append(speech_lengths_i)
+	feats_pad = pad_sequence(speech_list, batch_first=True, padding_value=0.0)
+	speech_lengths_pad = torch.Tensor(speech_lengths_list).int()
+	return feats_pad, speech_lengths_pad
+	

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