Save beep sound in a .wav file

Question

I generaed a beep sound in Python, that exists for 5ms, and repeats after every 1s, for next 10s.

The codes are as such:

## Import modules
import time
import sys
import winsound
import soundfile as sf 


## Set frequency and duration of beep sound
frequency = 37  
duration  =  5   # duration of beep sound is 5ms

for i in range(1,10):                                   # create beep sound for 10s

    ## Create beep sound for 5 ms, after every 1 s
    sys.stdout.write('\r\a{i}'.format(i=i))
    sys.stdout.flush()
    winsound.Beep(frequency, duration)
    time.sleep(1)                                       # Repeat beep sound after 1s

Now, I want to save this pattern in a .wav file. Hence, I changed the codes as such:

## Import modules

import time
import sys
import winsound
import soundfile as sf 


## Set frequency and duration of beep sound
frequency = 37  
duration  =  5    # duration of beep sound is 5ms 

for i in range(1,10):  # create beep spund for 10 s

    ## Create beep sound for 5 ms, after every 1 s
    sys.stdout.write('\r\a{i}'.format(i=i))
    sys.stdout.flush()
    winsound.Beep(frequency, duration)
    time.sleep(1)

    
## Save the beep spund as a .wav file
sf.write("Beep.wav", winsound.Beep(frequency, duration))

However, I keep geeting errors.

Can somebady please let me know how do I save this in a .wav file ?

Answer 1

The error is this:

write() missing 1 required positional argument: 'samplerate'

from the docs here: https://pysoundfile.readthedocs.io/en/latest/

we can see that the function requires 3 arguments:

sf.write('new_file.flac', data, samplerate)

The code in the question has provided only two arguements.

The 3 arguements are:

1. file (str or int or file-like object)
2. data (array_like)
3. samplerate (int)

It samplerate is missing.

With the docs given, this works:

## Import modules

import time
import sys
import numpy as np
import winsound
import soundfile as sf 


## Set frequency and duration of beep sound
frequency = 37  
duration  =  5    # duration of beep sound is 5ms 

for i in range(1,10):  # create beep spund for 10 s

    ## Create beep sound for 5 ms, after every 1 s
    sys.stdout.write('\r\a{i}'.format(i=i))
    sys.stdout.flush()
    winsound.Beep(frequency, duration)
    time.sleep(1)

    
## Save the beep spund as a .wav file
file = 'G:\\My Drive\\darren\\02_programming\python\\tests\\Beep.wav'
with sf.SoundFile(file, 'w', 44100, 2, 'PCM_24') as f:
    f.write(np.random.randn(10, 2))