我试图提取wav文件的某些功能，我有这个：
我正在使用pyAudioAnalysis库的特征提取工具：
https://github.com/tyiannak/pyAudioAnalysis/wiki/3.-Feature-Extraction
问题是我收到了numpy reshape()函数的错误。我遵循如下使用功能提取器的指导原则，如下所示：
[Fs, x] = audioBasicIO.readAudioFile('13 Clock in the Morning - Waiters the Free Music Archive (No Copyright Music).wav')
F = audioFeatureExtraction.stFeatureExtraction(x, Fs, 0.050 * Fs, 0.025 * Fs)
这是我得到的错误：
1 [Fs, x] = audioBasicIO.readAudioFile("song-wavs/"+song.name)
----> 2 F = audioFeatureExtraction.stFeatureExtraction(x, Fs, 0.050 * Fs, 0.025 * Fs)
pyAudioAnalysis/audioFeatureExtraction.pyc in stFeatureExtraction(signal, Fs, Win, Step)
575 curFV[0] = stZCR(x) # zero crossing rate
576 curFV[1] = stEnergy(x) # short-term energy
--> 577 curFV[2] = stEnergyEntropy(x) # short-term entropy of energy
578 [curFV[3], curFV[4]] = stSpectralCentroidAndSpread(X, Fs) # spectral centroid and spread
579 curFV[5] = stSpectralEntropy(X) # spectral entropy
pyAudioAnalysis/audioFeatureExtraction.pyc in stEnergyEntropy(frame, numOfShortBlocks)
49 frame = frame[0:subWinLength * numOfShortBlocks]
50 # subWindows is of size [numOfShortBlocks x L]
---> 51 subWindows = frame.reshape(subWinLength, numOfShortBlocks, order='F').copy()
52
53 # Compute normalized sub-frame energies:
ValueError: cannot reshape array of size 4400 into shape (220,10)
有谁能告诉我如何解决重塑的问题以及我做错了什么？
答案 0 :(得分：1)
我有同样的错误，但根据https://github.com/tyiannak/pyAudioAnalysis/issues/72，我将立体声音乐转换为单声道，它解决了我的问题。