import sounddevice as sd
import soundfile as sf

samplerate = 16000
duration = 1 # seconds
filename = 'yes.wav'
print("start")
mydata = sd.rec(int(samplerate * duration), samplerate=samplerate,
    channels=1, blocking=True)
print("end")
sd.wait()
sf.write(filename, mydata, samplerate)