Python wav file to numpy array

1. How do I read a WAV file in Python?
2. How do I write a NumPy array to a file in python?
3. Does += work with NumPy arrays?

How do I read a WAV file in Python?

open() This function opens a file to read/write audio data. The function needs two parameters - first the file name and second the mode.

How do I write a NumPy array to a file in python?

You can save your NumPy arrays to CSV files using the savetxt() function. This function takes a filename and array as arguments and saves the array into CSV format.

Does += work with NumPy arrays?

Numpy arrays are mutable objects that have clearly defined in place operations. If a and b are arrays of the same shape, a += b adds the two arrays together, using a as an output buffer.