python - Groove Music or Windows Media Player can't play WAV file written with scipy.io.wavfile.write

Question

I tried the code below to make a WAV file playing a fifth for 2 seconds:

C4 = 261.626
G4 = 391.995
t = np.arange(0, 2, 1/44100)
x = np.sin(2*np.pi*C4*t) + np.sin(2*np.pi*G4*t)
wavfile.write("C4G4.wav", 44100, x)

But the file won't play on the audio apps I have (Groove Music, Windows Media Player). It does if I change x to 32-bit floats x = x.astype('float32'). At first I thought 64-bit WAV were just impossible, but wavfile.read works just fine on either dtype. Can somebody clarify where this problem is?

question from:https://stackoverflow.com/questions/66051034/groove-music-or-windows-media-player-cant-play-wav-file-written-with-scipy-io-w

Answer 1

Waitting for answers