Eng listening cut

Former-commit-id: d25aaa7cdc5fe9134fb31097c74d458c1fb06966
Former-commit-id: f8df89bb9bec2cbe16149c56cea5d6f7e5312dfe

English_Listening_cut/a.exe.REMOVED.git-id

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+6f720344bc9ccc140bde874d65b7173131ca7e99

English_Listening_cut/main.py

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+from sys import argv,exit
+from pydub import AudioSegment,silence
+from os import path,mkdir,system
+from shutil import rmtree
+from traceback import print_exc
+
+
+def init():
+    if len(argv) != 2:
+        print("Usage: a.py file.mp3")
+        exit(1)
+    return argv[1]
+    # return "新课程外研高一第32期.mp3"
+
+def make_dir(pth:str):
+    if not path.isdir(pth):
+        try:
+            mkdir(pth)
+        except PermissionError:
+            print("Could not create directory '{pth}' because of permission error.".format(pth=pth))
+            exit(-1) 
+    else:
+        ipt=input(f"'{pth}' exists. Remove it [YES/no]: ")
+        if ipt == "" or ipt == "yes":
+            try:
+                rmtree(pth)
+            except PermissionError:
+                print("Could not remove '{pth}' because of permission error.".format(pth=pth))
+                exit(-1)
+            mkdir(pth)
+        else:
+            print(f"Warning: Directory '{pth}' exists, which may influence the programm!")
+
+def cut(file:AudioSegment,length:list[int],keep=300) -> AudioSegment:
+    maxlen = len(file)
+    bgn,end=length
+    if bgn-keep>=0:
+        bgn-=keep
+    if end+keep<=maxlen:
+        end+=keep
+    return file[bgn:end]
+
+def main():
+    file = init()
+    NAMES=["BASIC", "1-5", "Others"]
+    make_dir("OUTPUT")
+    for i in NAMES:
+        make_dir(f"OUTPUT/{i}")
+    print("Reading file ...")
+    file:AudioSegment = AudioSegment.from_file(file)
+    print("Detecting audio segments ...")
+    arr=silence.detect_nonsilent(
+        file,
+        silence_thresh=-100,
+        seek_step=500,
+        min_silence_len=4000
+    )
+    print("Cutting audio segments ...")
+    group=[]
+    groups=[]
+    
+    groups.append([(cut(file,arr[0]),'info'),(cut(file,arr[1]),'example')])
+    for i in range(2,2+5):
+        group.append((cut(file,arr[i]),str(i-1)))
+    groups.append(group)
+    group=[]
+    for i in range(7,len(arr)-1,2):
+        group.append((cut(file,arr[i]),f"Tips_of_{(i-7)//2+6}"))
+        group.append((cut(file,arr[i+1]),f"Text_{(i-7)//2+6}"))
+    groups.append(group)
+    for i,group in enumerate(groups):
+        print(f"Saving audio segments '{NAMES[i]}' ...")
+        for f,name in group:
+            f.export(f"OUTPUT/{NAMES[i]}/{name}.mp3")
+    print("Done!")
+        
+
+if __name__ == '__main__':
+    try:
+        main()
+    except SystemExit:
+        system("pause")
+    except KeyboardInterrupt as e:
+        raise e
+    except Exception:
+        print("An unexpected exception occurred.")
+        print_exc()