PESQ score greater than 4.5?

[frankfyf]

It has been mentioned in many literature that the PESQ score should be ranged from -0.5 to 4.5, but when I set the ref and the deg to be the same it always return a constant value greater than 4.5 (~4.64 actually) , is this something by design or did I missed anything?

For example:

fs = 16000
duration = 10
rand_audio = np.random.randn(duration*fs)
pesq(
    fs,
    rand_audio,
    rand_audio,
    'wb'
)

always gives
4.643888473510742

[ludlows]

Hi @frankfyf ,
have you check this issue (#13)?