Stop the loop in sounddevice audio output

Question

The problem is when I am using sounddevice's loop option to loop a playback, I cannot get it to stop.

import soundfile as sf
import sounddevice as sd

weight = 1.4

data, fs = sf.read('sound.wav')
sd.play(data * weight, fs, blocking=True,loop=True)
sd.stop()

How to stop the loop, after it has started. Is it possible to write a function such that when the function is called the loop stops and the audio stream is closed?

Does sd.stop() not work? Does it error or just not stop sound output? — Atto Allas, Dec 02 '17 at 09:07
It does not show any error, sounddevice.stop() / sd.stop() doesn't work when sd.play(....loop=True) i.e when loop is on. — Rudra Pratap Sinha, Dec 02 '17 at 09:20
But that is what I am looking for, how to stop a loop with a function. — Rudra Pratap Sinha, Dec 02 '17 at 09:21

score 2 · Accepted Answer · answered Dec 02 '17 at 18:41

2

The problem is that you are setting blocking=True which does not allow for any other functions to be run before this exits. Combined with loop=True, this produces an infinite loop.

What you want is:

import soundfile as sf
import sounddevice as sd

weight = 1.4

data, fs = sf.read('sound.wav')
sd.play(data * weight, fs,loop=True)
sd.stop()

Hope this helps!

answered Dec 02 '17 at 18:41

Atto Allas

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Exactly what I was looking for. – Rudra Pratap Sinha Dec 03 '17 at 08:02

Stop the loop in sounddevice audio output

1 Answers1