split_file.py

# Import necessary libraries 
from pydub import AudioSegment 
  
# Input audio file to be sliced 
audio = AudioSegment.from_wav("/full/path/filename.wav") 

# Length of the audiofile in milliseconds 
n = len(audio) 
  
# Variable to count the number of sliced chunks 
counter = 1
  
# Interval length at which to slice the audio file. 

interval = 60 * 1000
  
# Length of audio to overlap.  

overlap = 1.5 * 1000
  
# Initialize start and end seconds to 0 
start = 0
end = 0
  
# Flag to keep track of end of file. 
# When audio reaches its end, flag is set to 1 and we break 
flag = 0
  
# Iterate from 0 to end of the file, 
# with increment = interval 
for i in range(0, n, interval): 
    if i == 0: 
        start = 0
        end = interval 

    else: 
        start = end - overlap 
        end = start + interval  

    if end >= n: 
        end = n 
        flag = 1

    chunk = audio[start:end] 
  
    # Filename / Path to store the sliced audio 
    filename = '/full/path/chunk'+str(counter)+'.wav'
  
    # Store the sliced audio file to the defined path 
    chunk.export(filename, format ="wav") 
    # Print information about the current chunk 
    print("Processing chunk "+str(counter)+". Start = "
                        +str(start)+" end = "+str(end)) 
  
    # Increment counter for the next chunk 
    counter = counter + 1