我fft在numpy中使用了函数,导致了一个复杂的数组.如何获得准确的频率值?
我正在尝试使用scipy读取.wav文件.我这样做:
from scipy.io import wavfile
filename = "myWavFile.wav"
print "Processing " + filename
samples = wavfile.read(filename)
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我得到了这个丑陋的错误:
/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/site-packages/scipy/io/wavfile.py:121: WavFileWarning: chunk not understood
warnings.warn("chunk not understood", WavFileWarning)
Traceback (most recent call last):
File "fingerFooler.py", line 15, in <module>
samples = wavfile.read(filename)
File "/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/site-packages/scipy/io/wavfile.py", line 127, in read
size = struct.unpack(fmt, data)[0]
struct.error: unpack requires a string argument of length 4
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我使用的是Python 2.6.6,numpy 1.6.2和scipy 0.11.0
这是导致问题的wav文件.
有什么想法吗?这有什么不对?