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I'm looking for a Python's code that would record a sound and play it back after a certain delay (for example 10 seconds). In other words, I would like to constantly hear (on my headphones) what's going on outside, but with a certain delay.

I found a Python script on GitHub (https://gist.github.com/larsyencken/5641402) that is supposed to do what I'm looking for. However, when I run the script, the playing starts after 5 seconds (default delay), but it records everything around and plays it in real time (without any delay).

sherlock85
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  • Asking for recommendations is off-topic on Stack Overflow. You can ask on http://softwarerecs.stackexchange.com/ but be sure to [provide enough information](http://meta.softwarerecs.stackexchange.com/questions/336/what-is-required-for-a-question-to-contain-enough-information) – greg-449 Aug 17 '16 at 14:30
  • Thanks @greg-449. I just edited my question here. – sherlock85 Aug 17 '16 at 17:26

1 Answers1

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Here is an example using sounddevice , although you can do it using other audio/sound modules as well.

Below example records audio from microphone for #seconds as per variable duration which you can modify as per your requirements. Same contents are played back using standard audio output (speakers). More on this here

Working Code

import sounddevice as sd
import numpy as np
import scipy.io.wavfile as wav

fs=44100
duration = 10  # seconds
myrecording = sd.rec(duration * fs, samplerate=fs, channels=2, dtype='float64')
print "Recording Audio for %s seconds" %(duration)
sd.wait()
print "Audio recording complete , Playing recorded Audio"
sd.play(myrecording, fs)
sd.wait()
print "Play Audio Complete"

Output

Python 2.7.9 (default, Dec 10 2014, 12:24:55) [MSC v.1500 32 bit (Intel)] on win32
Type "copyright", "credits" or "license()" for more information.
>>> ================================ RESTART ================================
>>> 
Recording Audio for 10 seconds
Audio recording complete , Playing recorded Audio
Play Audio Complete
>>>
Anil_M
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