From cc2c1d1d53dea5d2c45f858d1baa5bd279f47987 Mon Sep 17 00:00:00 2001
From: nichongjia-2007 <nichongjia@gmail.com>
Date: 星期三, 31 五月 2023 14:39:25 +0800
Subject: [PATCH] Merge branch 'main' of https://github.com/alibaba-damo-academy/FunASR

---
 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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