MFCC功率譜圖的繪製Python

任何人都可以幫我畫一個mfcc功能作爲功率譜圖！我只能繪製mfcc係數，這些係數在時域中未表示。我想在時域繪製mfcc功能。我也嘗試應用DCT將其轉換爲時間域！MFCC功率譜圖的繪製Python

from python_speech_features import mfcc 
#from python_speech_features import logfbank `enter code here` 
import scipy.io.wavfile as wav 
import pandas as pd 
import matplotlib.pyplot as plt 
from python_speech_features import logfbank 
import scipy.fftpack 

(rate,sig) = wav.read("Voice0003.wav") 
mfcc_feat = mfcc(sig,rate) 


(rate2,sig2) = wav.read("Voice0004.wav") 
mfcc_feat2 = mfcc(sig2,rate2) 
yf = scipy.fftpack.fft(sig,rate) 
#fbank_feat = logfbank(yf) 
#dct=scipy.fftpack.dct(fbank_feat  tried converting into Time Domain   didnt help 


print(len(mfcc_feat)) 
print(len(mfcc_feat2)) 

pd.DataFrame(mfcc_feat2).T.plot() 
plt.show() 
pd.DataFrame(mfcc_feat).T.plot() 
plt.show()

來源

2016-08-03 CHETAN RAO

更多關於當前代碼錯誤的信息/背景將幫助人們更好地回答這個問題。 – eclarkso

我想對Python的specgram函數有一些正確的認識。 –

地址Pxx，freqs，頻段IM = plt.specgram（信號，NFFT = NFFT，FS = 2，noverlap = 100，CMAP =無）#signal是.wav文件的一維數組

來源

2016-08-05 07:20:44

MFCC功率譜圖的繪製Python

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