ValueError: too many values to unpack (expected 1)

[Former user]

Hello,

i try to analyse a WAV with following code but it failes with ValueError: too many values to unpack (expected 1).

What the matter? :)

import pyaudio
import numpy as np
import peakutils
from matplotlib import pyplot as plt
import scipy.io.wavfile

samplerate, data = scipy.io.wavfile.read("test.wav")

cb = np.array(data)

indexes = peakutils.indexes(data, thres=0.3, min_dist=100)

print(indexes)

thanks for any help

[Lucas Hermann Negri]

PeakUtils only operates on 1D arrays.

[Peter Bölke]

When i change it in this way:

import numpy as np
import peakutils
from matplotlib import pyplot as plt
import scipy.io.wavfile

samplerate, data = scipy.io.wavfile.read("test.wav")

cb = np.array([d[0] for d in data])

indexes = peakutils.indexes(cb, thres=0.3, min_dist=100)

print(indexes)

it gives me:

C:\Python33_64\lib\site-packages\peakutils\peak.py:37: RuntimeWarning: overflow encountered in short_scalars
  thres = thres * (np.max(y) - np.min(y)) + np.min(y)
[    27    137    301 ..., 191641 191791 191935

Where can i find an example about analysing an audio file?

[Lucas Hermann Negri]

You can try to change the type of the np array to avoid overflow DOC.