From 3260fb879b0d95c36656f8a19807bf349605257a Mon Sep 17 00:00:00 2001
From: gaochangfeng <54253717+gaochangfeng@users.noreply.github.com>
Date: 星期五, 12 四月 2024 11:37:22 +0800
Subject: [PATCH] Dev gcf (#1611)

---
 funasr/utils/vad_utils.py |   25 ++++++++++++++++++++++++-
 1 files changed, 24 insertions(+), 1 deletions(-)

diff --git a/funasr/utils/vad_utils.py b/funasr/utils/vad_utils.py
index af7c8f2..6d95e44 100644
--- a/funasr/utils/vad_utils.py
+++ b/funasr/utils/vad_utils.py
@@ -28,4 +28,27 @@
         speech_list.append(speech_i)
         speech_lengths_list.append(speech_lengths_i)
         
-    return speech_list, speech_lengths_list
\ No newline at end of file
+    return speech_list, speech_lengths_list
+
+def merge_vad(vad_result, max_length=15000):
+    new_result = []
+    time_step = [t[0] for t in vad_result] + [t[1] for t in vad_result]
+    time_step = sorted(list(set(time_step)))
+    if len(time_step) == 0:
+        return []
+    bg = 0
+    for i in range(len(time_step)-1):
+        time = time_step[i]
+        if time_step[i+1] - bg < max_length:
+            continue
+        if time - bg < max_length * 1.5:
+            new_result.append([bg, time])
+        else:
+            split_num = int(time - bg) // max_length + 1
+            spl_l = int(time - bg) // split_num
+            for j in range(split_num):
+                new_result.append([bg + j*spl_l, bg + (j+1)*spl_l])
+        bg = time
+    new_result.append([bg, time_step[-1]])
+    return new_result
+        
\ No newline at end of file

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