I want to import music in Python, I am using soundfile. I noticed that importing ogg or wav files yield different results, as the following shows (the wav file is a conversion of the ogg file using ffmpeg). Using the code below, I observe a small difference between the ogg and wav files, is this difference normal ?
Edit : I used the following command to convert my ffmpeg -i filename.mp3 newfilename.wav
X, sample_rate= sf.read(wav_file)
print(wav_file)
print(X[0:20,])
And it outputs:
test_inputs/Shikantaza.wav
[[ 0.00000000e+00 0.00000000e+00]
[ 0.00000000e+00 0.00000000e+00]
[ 0.00000000e+00 0.00000000e+00]
[ 0.00000000e+00 0.00000000e+00]
[ 0.00000000e+00 0.00000000e+00]
[ 0.00000000e+00 0.00000000e+00]
[ 0.00000000e+00 0.00000000e+00]
[ 0.00000000e+00 0.00000000e+00]
[ 0.00000000e+00 0.00000000e+00]
[ 0.00000000e+00 0.00000000e+00]
[ 0.00000000e+00 0.00000000e+00]
[ 0.00000000e+00 0.00000000e+00]
[ 0.00000000e+00 0.00000000e+00]
[ 0.00000000e+00 0.00000000e+00]
[ 0.00000000e+00 0.00000000e+00]
[ -3.05175781e-05 -3.05175781e-05]
[ -3.05175781e-05 0.00000000e+00]
[ 0.00000000e+00 0.00000000e+00]
[ 0.00000000e+00 0.00000000e+00]
[ 0.00000000e+00 0.00000000e+00]]
test_inputs/Shikantaza.ogg
[[ 1.17459308e-06 3.78499834e-07]
[ 5.19584228e-06 2.25495864e-06]
[ 1.13173719e-05 6.28675980e-06]
[ 1.07316619e-05 4.50928837e-06]
[ 2.70867986e-06 -3.40946622e-06]
[ 5.37277947e-06 5.06399772e-07]
[ 3.64179391e-06 6.27796169e-07]
[ -5.09244865e-06 -6.14764804e-06]
[ -4.38827237e-06 -3.74127058e-06]
[ -5.41250847e-06 -3.70974522e-06]
[ -2.75347884e-06 -7.08531957e-07]
[ -9.67129495e-07 6.15705801e-07]
[ -4.91217952e-06 -3.82820826e-06]
[ 4.38740926e-06 6.00675048e-06]
[ -3.00040119e-06 -4.78463562e-08]
[ -2.18559871e-05 -1.67418439e-05]
[ -1.57035538e-05 -8.82137283e-06]
[ -1.28820702e-05 -5.31934711e-06]
[ -9.44996100e-06 -8.10974825e-07]
[ -5.33486082e-06 3.71237797e-06]]