Python background sound, how to know when it stops

Question

I'm using the winsound library to play a file asynchronously. However, I would like to know when the sound is done playing. If the sound is done, then I keep the flag set to 1. Otherwise, I set flag to 0.

This is my current code:

import winsound

winsound.PlaySound('c:\\audiocheck.net_whitenoise.wav',winsound.SND_ALIAS | winsound.SND_ASYNC)
flag = 1
print(flag)

Are you opposed to blocking until the sound is done playing? — ndmeiri, Mar 13 '18 at 22:59
Or can you explain why you need to know when the sound stops playing? — ndmeiri, Mar 13 '18 at 23:00
I need the sound to be blaying on the background because I'm using it to create a reaction in an EEG spectrum that's why I also need the flags because I need to know exactly when the sound began playing and when it stopped — Diana Laura Jacinto, Mar 13 '18 at 23:10
I see. Can you get the duration of the sound in the given `.wav` file? — ndmeiri, Mar 13 '18 at 23:11
Okay, can you just start the sound and then sleep for 10 seconds? — ndmeiri, Mar 13 '18 at 23:16
No because at the same time I'm reading values and sending them to a CSV file, in other words I need the sound to be playing in the background and to keep doing what I mentioned and also know the flag state (0- no sound, 1-sound playing) which I'm also sending to the CSV file — Diana Laura Jacinto, Mar 13 '18 at 23:23
That did play the sound but I'm still getting this AttributeError: 'NoneType' object has no attribute 'join' — Diana Laura Jacinto, Mar 14 '18 at 00:17

score -1 · Answer 1 · edited Mar 14 '18 at 01:19

-1

import winsound
import time

start = time.time()
winsound.PlaySound('c:\\audiocheck.net_whitenoise.wav',winsound.SND_ALIAS | winsound.SND_ASYNC)
flag = 1
while flag == 1:
    elapsed = time.time() - start
    if elapsed >= 10:
        flag = 0

edited Mar 14 '18 at 01:19

ndmeiri

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answered Mar 13 '18 at 23:35

Diana Laura Jacinto

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Python background sound, how to know when it stops

1 Answers1