In [1]:
import numpy as np
import wave
from scipy import fromstring, int16
from scipy import signal
%matplotlib inline
import matplotlib.pyplot as plt
import seaborn as sns
import pandas as pd
import time
import struct

In [2]:
# colormapをカスタマイズする
from matplotlib.colors import LinearSegmentedColormap

def generate_cmap(colors):
    """自分で定義したカラーマップを返す"""
    values = range(len(colors))

    vmax = np.ceil(np.max(values))
    color_list = []
    for v, c in zip(values, colors):
        color_list.append( ( v/ vmax, c) )
    return LinearSegmentedColormap.from_list('custom_cmap', color_list)

In [3]:
def get_wavelet_img(wavfile, wave_time, freq_width, cmap):
    wr = wave.open(wavfile, "rb")
    print "\n\n"
    print "---------------------------------------------------------------"
    print wavfile.split('/')[-1].split('.')[0]
    print "Channel num : ", wr.getnchannels()
    print "Sample size : ", wr.getsampwidth()
    print "Sampling rate : ", wr.getframerate()
    print "Frame num : ", wr.getnframes()
    print "Prams : ", wr.getparams()
    print "Sec : ", float(wr.getnframes()) / wr.getframerate()
    data = wr.readframes(wr.getnframes())
    num_data = fromstring(data, dtype = int16)
    if (wr.getnchannels() == 2):
        left = num_data[::2]
        right = num_data[1::2]
    elif  wr.getnchannels() == 1:
        left = num_data
    else:
        return
    wr.close()
    sample_late = float(wr.getframerate())
    T = int(sample_late * wave_time)
    widths = np.arange(freq_width[0] , freq_width[1] + 1)
    start = time.time()
    cwtmatr = signal.cwt(left, signal.ricker, widths)
    elapsed_time = time.time() - start
    print "Frequency Width :: " + str(freq_width[0]) + " to " + str(freq_width[1]) + "[Hz]"
    print "Sampling Rate :: " + str(sample_late)
    print "Wave Width :: " + str(T/sample_late) + "[s]"
    print ("elapsed_time:{0}".format(elapsed_time)) + "[sec]"
    print cwtmatr.shape
    df = pd.DataFrame(cwtmatr)
    
    x = range(T)
    y = left.astype(np.float32)
    plt.figure(figsize=(10, 5))
    plt.imshow(cwtmatr, extent=[0, T/sample_late, freq_width[0], freq_width[1]+1], cmap=cmap, aspect='auto', \
               vmax=abs(cwtmatr).max(), vmin=-abs(cwtmatr).max())
    plt.axis('off')
    plt.savefig('./imgs/' + wavfile.split('/')[-1].split('.')[0]+'.png')
    print "---------------------------------------------------------------"
    print "\n\n"

In [13]:
get_wavelet_img("./ambient.wav", 0.1, [1, 1000], 'PuOr')
get_wavelet_img("./techno.wav", 0.1, [1, 1000], 'PuOr')
get_wavelet_img("./black.wav", 0.1, [1, 1000], 'PuOr')




---------------------------------------------------------------
ambient
Channel num :  2
Sample size :  2
Sampling rate :  44100
Frame num :  1323000
Prams :  (2, 2, 44100, 1323000, 'NONE', 'not compressed')
Sec :  30.0
Frequency Width :: 1 to 1000[Hz]
Sampling Rate :: 44100.0
Wave Width :: 0.1[s]
elapsed_time:0.836292028427[sec]
(1000, 4410)
---------------------------------------------------------------






---------------------------------------------------------------
techno
Channel num :  2
Sample size :  2
Sampling rate :  44100
Frame num :  4410000
Prams :  (2, 2, 44100, 4410000, 'NONE', 'not compressed')
Sec :  100.0
Frequency Width :: 1 to 1000[Hz]
Sampling Rate :: 44100.0
Wave Width :: 0.1[s]
elapsed_time:0.842312097549[sec]
(1000, 4410)
---------------------------------------------------------------






---------------------------------------------------------------
black
Channel num :  2
Sample size :  2
Sampling rate :  44100
Frame num :  1323000
Prams :  (2, 2, 44100, 1323000, 'NONE', 'not compressed')
Sec :  30.0
Frequency Width :: 1 to 1000[Hz]
Sampling Rate :: 44100.0
Wave Width :: 0.1[s]
elapsed_time:0.827678918839[sec]
(1000, 4410)
---------------------------------------------------------------




In [ ]:
import glob
waves = glob.glob('./wavs/*.wav')
for wavfile in waves:
    get_wavelet_img(wavfile, 0.1,  [1, 501], 'PuOr')




---------------------------------------------------------------
0
Channel num :  1
Sample size :  2
Sampling rate :  11025
Frame num :  800
Prams :  (1, 2, 11025, 800, 'NONE', 'not compressed')
Sec :  0.0725623582766
Frequency Width :: 1 to 501[Hz]
Sampling Rate :: 11025.0
Wave Width :: 0.0999546485261[s]
elapsed_time:0.166361093521[sec]
(501, 800)
---------------------------------------------------------------






---------------------------------------------------------------
1
Channel num :  1
Sample size :  2
Sampling rate :  11025
Frame num :  800
Prams :  (1, 2, 11025, 800, 'NONE', 'not compressed')
Sec :  0.0725623582766
Frequency Width :: 1 to 501[Hz]
Sampling Rate :: 11025.0
Wave Width :: 0.0999546485261[s]
elapsed_time:0.136719942093[sec]
(501, 800)
---------------------------------------------------------------






---------------------------------------------------------------
10
Channel num :  1
Sample size :  2
Sampling rate :  11025
Frame num :  800
Prams :  (1, 2, 11025, 800, 'NONE', 'not compressed')
Sec :  0.0725623582766
Frequency Width :: 1 to 501[Hz]
Sampling Rate :: 11025.0
Wave Width :: 0.0999546485261[s]
elapsed_time:0.121342182159[sec]
(501, 800)
---------------------------------------------------------------






---------------------------------------------------------------
100
Channel num :  1
Sample size :  2
Sampling rate :  11025
Frame num :  800
Prams :  (1, 2, 11025, 800, 'NONE', 'not compressed')
Sec :  0.0725623582766
Frequency Width :: 1 to 501[Hz]
Sampling Rate :: 11025.0
Wave Width :: 0.0999546485261[s]
elapsed_time:0.123260974884[sec]
(501, 800)
---------------------------------------------------------------






---------------------------------------------------------------
101
Channel num :  1
Sample size :  2
Sampling rate :  11025
Frame num :  800
Prams :  (1, 2, 11025, 800, 'NONE', 'not compressed')
Sec :  0.0725623582766
Frequency Width :: 1 to 501[Hz]
Sampling Rate :: 11025.0
Wave Width :: 0.0999546485261[s]
elapsed_time:0.126487970352[sec]
(501, 800)
---------------------------------------------------------------






---------------------------------------------------------------
102
Channel num :  1
Sample size :  2
Sampling rate :  11025
Frame num :  800
Prams :  (1, 2, 11025, 800, 'NONE', 'not compressed')
Sec :  0.0725623582766
Frequency Width :: 1 to 501[Hz]
Sampling Rate :: 11025.0
Wave Width :: 0.0999546485261[s]
elapsed_time:0.140663146973[sec]
(501, 800)
---------------------------------------------------------------






---------------------------------------------------------------
103
Channel num :  1
Sample size :  2
Sampling rate :  11025
Frame num :  800
Prams :  (1, 2, 11025, 800, 'NONE', 'not compressed')
Sec :  0.0725623582766
Frequency Width :: 1 to 501[Hz]
Sampling Rate :: 11025.0
Wave Width :: 0.0999546485261[s]
elapsed_time:0.120313882828[sec]
(501, 800)
---------------------------------------------------------------






---------------------------------------------------------------
104
Channel num :  1
Sample size :  2
Sampling rate :  11025
Frame num :  800
Prams :  (1, 2, 11025, 800, 'NONE', 'not compressed')
Sec :  0.0725623582766
Frequency Width :: 1 to 501[Hz]
Sampling Rate :: 11025.0
Wave Width :: 0.0999546485261[s]
elapsed_time:0.120541810989[sec]
(501, 800)
---------------------------------------------------------------






---------------------------------------------------------------
105
Channel num :  1
Sample size :  2
Sampling rate :  11025
Frame num :  800
Prams :  (1, 2, 11025, 800, 'NONE', 'not compressed')
Sec :  0.0725623582766
Frequency Width :: 1 to 501[Hz]
Sampling Rate :: 11025.0
Wave Width :: 0.0999546485261[s]
elapsed_time:0.123260974884[sec]
(501, 800)
---------------------------------------------------------------






---------------------------------------------------------------
106
Channel num :  1
Sample size :  2
Sampling rate :  11025
Frame num :  800
Prams :  (1, 2, 11025, 800, 'NONE', 'not compressed')
Sec :  0.0725623582766
Frequency Width :: 1 to 501[Hz]
Sampling Rate :: 11025.0
Wave Width :: 0.0999546485261[s]
elapsed_time:0.119183778763[sec]
(501, 800)
---------------------------------------------------------------






---------------------------------------------------------------
107
Channel num :  1
Sample size :  2
Sampling rate :  11025
Frame num :  800
Prams :  (1, 2, 11025, 800, 'NONE', 'not compressed')
Sec :  0.0725623582766
Frequency Width :: 1 to 501[Hz]
Sampling Rate :: 11025.0
Wave Width :: 0.0999546485261[s]
elapsed_time:0.12006187439[sec]
(501, 800)
---------------------------------------------------------------






---------------------------------------------------------------
108
Channel num :  1
Sample size :  2
Sampling rate :  11025
Frame num :  800
Prams :  (1, 2, 11025, 800, 'NONE', 'not compressed')
Sec :  0.0725623582766
Frequency Width :: 1 to 501[Hz]
Sampling Rate :: 11025.0
Wave Width :: 0.0999546485261[s]
elapsed_time:0.119596004486[sec]
(501, 800)
---------------------------------------------------------------






---------------------------------------------------------------
109
Channel num :  1
Sample size :  2
Sampling rate :  11025
Frame num :  800
Prams :  (1, 2, 11025, 800, 'NONE', 'not compressed')
Sec :  0.0725623582766
Frequency Width :: 1 to 501[Hz]
Sampling Rate :: 11025.0
Wave Width :: 0.0999546485261[s]
elapsed_time:0.114797115326[sec]
(501, 800)
---------------------------------------------------------------






---------------------------------------------------------------
11
Channel num :  1
Sample size :  2
Sampling rate :  11025
Frame num :  800
Prams :  (1, 2, 11025, 800, 'NONE', 'not compressed')
Sec :  0.0725623582766
Frequency Width :: 1 to 501[Hz]
Sampling Rate :: 11025.0
Wave Width :: 0.0999546485261[s]
elapsed_time:0.117968082428[sec]
(501, 800)
---------------------------------------------------------------






---------------------------------------------------------------
110
Channel num :  1
Sample size :  2
Sampling rate :  11025
Frame num :  800
Prams :  (1, 2, 11025, 800, 'NONE', 'not compressed')
Sec :  0.0725623582766
Frequency Width :: 1 to 501[Hz]
Sampling Rate :: 11025.0
Wave Width :: 0.0999546485261[s]
elapsed_time:0.122319936752[sec]
(501, 800)
---------------------------------------------------------------






---------------------------------------------------------------
111
Channel num :  1
Sample size :  2
Sampling rate :  11025
Frame num :  800
Prams :  (1, 2, 11025, 800, 'NONE', 'not compressed')
Sec :  0.0725623582766
Frequency Width :: 1 to 501[Hz]
Sampling Rate :: 11025.0
Wave Width :: 0.0999546485261[s]
elapsed_time:0.117738008499[sec]
(501, 800)
---------------------------------------------------------------






---------------------------------------------------------------
112
Channel num :  1
Sample size :  2
Sampling rate :  11025
Frame num :  800
Prams :  (1, 2, 11025, 800, 'NONE', 'not compressed')
Sec :  0.0725623582766
Frequency Width :: 1 to 501[Hz]
Sampling Rate :: 11025.0
Wave Width :: 0.0999546485261[s]
elapsed_time:0.120023965836[sec]
(501, 800)
---------------------------------------------------------------






---------------------------------------------------------------
113
Channel num :  1
Sample size :  2
Sampling rate :  11025
Frame num :  800
Prams :  (1, 2, 11025, 800, 'NONE', 'not compressed')
Sec :  0.0725623582766
Frequency Width :: 1 to 501[Hz]
Sampling Rate :: 11025.0
Wave Width :: 0.0999546485261[s]
elapsed_time:0.12334394455[sec]
(501, 800)
---------------------------------------------------------------






---------------------------------------------------------------
114
Channel num :  1
Sample size :  2
Sampling rate :  11025
Frame num :  800
Prams :  (1, 2, 11025, 800, 'NONE', 'not compressed')
Sec :  0.0725623582766
Frequency Width :: 1 to 501[Hz]
Sampling Rate :: 11025.0
Wave Width :: 0.0999546485261[s]
elapsed_time:0.116911172867[sec]
(501, 800)
---------------------------------------------------------------






---------------------------------------------------------------
115
Channel num :  1
Sample size :  2
Sampling rate :  11025
Frame num :  800
Prams :  (1, 2, 11025, 800, 'NONE', 'not compressed')
Sec :  0.0725623582766
Frequency Width :: 1 to 501[Hz]
Sampling Rate :: 11025.0
Wave Width :: 0.0999546485261[s]
elapsed_time:0.118830919266[sec]
(501, 800)
---------------------------------------------------------------






---------------------------------------------------------------
116
Channel num :  1
Sample size :  2
Sampling rate :  11025
Frame num :  800
Prams :  (1, 2, 11025, 800, 'NONE', 'not compressed')
Sec :  0.0725623582766
Frequency Width :: 1 to 501[Hz]
Sampling Rate :: 11025.0
Wave Width :: 0.0999546485261[s]
elapsed_time:0.122938156128[sec]
(501, 800)
---------------------------------------------------------------






---------------------------------------------------------------
117
Channel num :  1
Sample size :  2
Sampling rate :  11025
Frame num :  800
Prams :  (1, 2, 11025, 800, 'NONE', 'not compressed')
Sec :  0.0725623582766
Frequency Width :: 1 to 501[Hz]
Sampling Rate :: 11025.0
Wave Width :: 0.0999546485261[s]
elapsed_time:0.13449215889[sec]
(501, 800)
---------------------------------------------------------------






---------------------------------------------------------------
118
Channel num :  1
Sample size :  2
Sampling rate :  11025
Frame num :  800
Prams :  (1, 2, 11025, 800, 'NONE', 'not compressed')
Sec :  0.0725623582766
Frequency Width :: 1 to 501[Hz]
Sampling Rate :: 11025.0
Wave Width :: 0.0999546485261[s]
elapsed_time:0.126426935196[sec]
(501, 800)
---------------------------------------------------------------






---------------------------------------------------------------
119
Channel num :  1
Sample size :  2
Sampling rate :  11025
Frame num :  800
Prams :  (1, 2, 11025, 800, 'NONE', 'not compressed')
Sec :  0.0725623582766
Frequency Width :: 1 to 501[Hz]
Sampling Rate :: 11025.0
Wave Width :: 0.0999546485261[s]
elapsed_time:0.121783971786[sec]
(501, 800)
---------------------------------------------------------------






---------------------------------------------------------------
12
Channel num :  1
Sample size :  2
Sampling rate :  11025
Frame num :  800
Prams :  (1, 2, 11025, 800, 'NONE', 'not compressed')
Sec :  0.0725623582766
Frequency Width :: 1 to 501[Hz]
Sampling Rate :: 11025.0
Wave Width :: 0.0999546485261[s]
elapsed_time:0.116822957993[sec]
(501, 800)
---------------------------------------------------------------






---------------------------------------------------------------
120
Channel num :  1
Sample size :  2
Sampling rate :  11025
Frame num :  800
Prams :  (1, 2, 11025, 800, 'NONE', 'not compressed')
Sec :  0.0725623582766
Frequency Width :: 1 to 501[Hz]
Sampling Rate :: 11025.0
Wave Width :: 0.0999546485261[s]
elapsed_time:0.118235111237[sec]
(501, 800)
---------------------------------------------------------------






---------------------------------------------------------------
121
Channel num :  1
Sample size :  2
Sampling rate :  11025
Frame num :  800
Prams :  (1, 2, 11025, 800, 'NONE', 'not compressed')
Sec :  0.0725623582766
Frequency Width :: 1 to 501[Hz]
Sampling Rate :: 11025.0
Wave Width :: 0.0999546485261[s]
elapsed_time:0.118384122849[sec]
(501, 800)
---------------------------------------------------------------






---------------------------------------------------------------
122
Channel num :  1
Sample size :  2
Sampling rate :  11025
Frame num :  800
Prams :  (1, 2, 11025, 800, 'NONE', 'not compressed')
Sec :  0.0725623582766
Frequency Width :: 1 to 501[Hz]
Sampling Rate :: 11025.0
Wave Width :: 0.0999546485261[s]
elapsed_time:0.118319034576[sec]
(501, 800)
---------------------------------------------------------------






---------------------------------------------------------------
123
Channel num :  1
Sample size :  2
Sampling rate :  11025
Frame num :  800
Prams :  (1, 2, 11025, 800, 'NONE', 'not compressed')
Sec :  0.0725623582766
Frequency Width :: 1 to 501[Hz]
Sampling Rate :: 11025.0
Wave Width :: 0.0999546485261[s]
elapsed_time:0.126841068268[sec]
(501, 800)
---------------------------------------------------------------






---------------------------------------------------------------
124
Channel num :  1
Sample size :  2
Sampling rate :  11025
Frame num :  800
Prams :  (1, 2, 11025, 800, 'NONE', 'not compressed')
Sec :  0.0725623582766
Frequency Width :: 1 to 501[Hz]
Sampling Rate :: 11025.0
Wave Width :: 0.0999546485261[s]
elapsed_time:0.123472929001[sec]
(501, 800)
---------------------------------------------------------------






---------------------------------------------------------------
125
Channel num :  1
Sample size :  2
Sampling rate :  11025
Frame num :  800
Prams :  (1, 2, 11025, 800, 'NONE', 'not compressed')
Sec :  0.0725623582766
Frequency Width :: 1 to 501[Hz]
Sampling Rate :: 11025.0
Wave Width :: 0.0999546485261[s]
elapsed_time:0.128112792969[sec]
(501, 800)
---------------------------------------------------------------






---------------------------------------------------------------
126
Channel num :  1
Sample size :  2
Sampling rate :  11025
Frame num :  800
Prams :  (1, 2, 11025, 800, 'NONE', 'not compressed')
Sec :  0.0725623582766
Frequency Width :: 1 to 501[Hz]
Sampling Rate :: 11025.0
Wave Width :: 0.0999546485261[s]
elapsed_time:0.128026008606[sec]
(501, 800)
---------------------------------------------------------------






---------------------------------------------------------------
127
Channel num :  1
Sample size :  2
Sampling rate :  11025
Frame num :  800
Prams :  (1, 2, 11025, 800, 'NONE', 'not compressed')
Sec :  0.0725623582766
Frequency Width :: 1 to 501[Hz]
Sampling Rate :: 11025.0
Wave Width :: 0.0999546485261[s]
elapsed_time:0.124317884445[sec]
(501, 800)
---------------------------------------------------------------






---------------------------------------------------------------
128
Channel num :  1
Sample size :  2
Sampling rate :  11025
Frame num :  800
Prams :  (1, 2, 11025, 800, 'NONE', 'not compressed')
Sec :  0.0725623582766
Frequency Width :: 1 to 501[Hz]
Sampling Rate :: 11025.0
Wave Width :: 0.0999546485261[s]
elapsed_time:0.129908084869[sec]
(501, 800)
---------------------------------------------------------------






---------------------------------------------------------------
129
Channel num :  1
Sample size :  2
Sampling rate :  11025
Frame num :  800
Prams :  (1, 2, 11025, 800, 'NONE', 'not compressed')
Sec :  0.0725623582766
Frequency Width :: 1 to 501[Hz]
Sampling Rate :: 11025.0
Wave Width :: 0.0999546485261[s]
elapsed_time:0.126048088074[sec]
(501, 800)
---------------------------------------------------------------






---------------------------------------------------------------
13
Channel num :  1
Sample size :  2
Sampling rate :  11025
Frame num :  800
Prams :  (1, 2, 11025, 800, 'NONE', 'not compressed')
Sec :  0.0725623582766
Frequency Width :: 1 to 501[Hz]
Sampling Rate :: 11025.0
Wave Width :: 0.0999546485261[s]
elapsed_time:0.117392063141[sec]
(501, 800)
---------------------------------------------------------------






---------------------------------------------------------------
130
Channel num :  1
Sample size :  2
Sampling rate :  11025
Frame num :  800
Prams :  (1, 2, 11025, 800, 'NONE', 'not compressed')
Sec :  0.0725623582766
Frequency Width :: 1 to 501[Hz]
Sampling Rate :: 11025.0
Wave Width :: 0.0999546485261[s]
elapsed_time:0.125267982483[sec]
(501, 800)
---------------------------------------------------------------






---------------------------------------------------------------
131
Channel num :  1
Sample size :  2
Sampling rate :  11025
Frame num :  800
Prams :  (1, 2, 11025, 800, 'NONE', 'not compressed')
Sec :  0.0725623582766
Frequency Width :: 1 to 501[Hz]
Sampling Rate :: 11025.0
Wave Width :: 0.0999546485261[s]
elapsed_time:0.131772994995[sec]
(501, 800)
---------------------------------------------------------------






---------------------------------------------------------------
132
Channel num :  1
Sample size :  2
Sampling rate :  11025
Frame num :  800
Prams :  (1, 2, 11025, 800, 'NONE', 'not compressed')
Sec :  0.0725623582766
Frequency Width :: 1 to 501[Hz]
Sampling Rate :: 11025.0
Wave Width :: 0.0999546485261[s]
elapsed_time:0.124272108078[sec]
(501, 800)
---------------------------------------------------------------






---------------------------------------------------------------
133
Channel num :  1
Sample size :  2
Sampling rate :  11025
Frame num :  800
Prams :  (1, 2, 11025, 800, 'NONE', 'not compressed')
Sec :  0.0725623582766
Frequency Width :: 1 to 501[Hz]
Sampling Rate :: 11025.0
Wave Width :: 0.0999546485261[s]
elapsed_time:0.121755123138[sec]
(501, 800)
---------------------------------------------------------------






---------------------------------------------------------------
134
Channel num :  1
Sample size :  2
Sampling rate :  11025
Frame num :  800
Prams :  (1, 2, 11025, 800, 'NONE', 'not compressed')
Sec :  0.0725623582766
Frequency Width :: 1 to 501[Hz]
Sampling Rate :: 11025.0
Wave Width :: 0.0999546485261[s]
elapsed_time:0.124618053436[sec]
(501, 800)
---------------------------------------------------------------






---------------------------------------------------------------
135
Channel num :  1
Sample size :  2
Sampling rate :  11025
Frame num :  800
Prams :  (1, 2, 11025, 800, 'NONE', 'not compressed')
Sec :  0.0725623582766
Frequency Width :: 1 to 501[Hz]
Sampling Rate :: 11025.0
Wave Width :: 0.0999546485261[s]
elapsed_time:0.141342163086[sec]
(501, 800)
---------------------------------------------------------------






---------------------------------------------------------------
136
Channel num :  1
Sample size :  2
Sampling rate :  11025
Frame num :  800
Prams :  (1, 2, 11025, 800, 'NONE', 'not compressed')
Sec :  0.0725623582766
Frequency Width :: 1 to 501[Hz]
Sampling Rate :: 11025.0
Wave Width :: 0.0999546485261[s]
elapsed_time:0.127722024918[sec]
(501, 800)
---------------------------------------------------------------






---------------------------------------------------------------
137
Channel num :  1
Sample size :  2
Sampling rate :  11025
Frame num :  800
Prams :  (1, 2, 11025, 800, 'NONE', 'not compressed')
Sec :  0.0725623582766
Frequency Width :: 1 to 501[Hz]
Sampling Rate :: 11025.0
Wave Width :: 0.0999546485261[s]
elapsed_time:0.124832868576[sec]
(501, 800)
---------------------------------------------------------------






---------------------------------------------------------------
138
Channel num :  1
Sample size :  2
Sampling rate :  11025
Frame num :  800
Prams :  (1, 2, 11025, 800, 'NONE', 'not compressed')
Sec :  0.0725623582766
Frequency Width :: 1 to 501[Hz]
Sampling Rate :: 11025.0
Wave Width :: 0.0999546485261[s]
elapsed_time:0.117027044296[sec]
(501, 800)
---------------------------------------------------------------






---------------------------------------------------------------
139
Channel num :  1
Sample size :  2
Sampling rate :  11025
Frame num :  800
Prams :  (1, 2, 11025, 800, 'NONE', 'not compressed')
Sec :  0.0725623582766
Frequency Width :: 1 to 501[Hz]
Sampling Rate :: 11025.0
Wave Width :: 0.0999546485261[s]
elapsed_time:0.143005847931[sec]
(501, 800)
---------------------------------------------------------------






---------------------------------------------------------------
14
Channel num :  1
Sample size :  2
Sampling rate :  11025
Frame num :  800
Prams :  (1, 2, 11025, 800, 'NONE', 'not compressed')
Sec :  0.0725623582766
Frequency Width :: 1 to 501[Hz]
Sampling Rate :: 11025.0
Wave Width :: 0.0999546485261[s]
elapsed_time:0.120458126068[sec]
(501, 800)
---------------------------------------------------------------






---------------------------------------------------------------
140
Channel num :  1
Sample size :  2
Sampling rate :  11025
Frame num :  800
Prams :  (1, 2, 11025, 800, 'NONE', 'not compressed')
Sec :  0.0725623582766
Frequency Width :: 1 to 501[Hz]
Sampling Rate :: 11025.0
Wave Width :: 0.0999546485261[s]
elapsed_time:0.120336771011[sec]
(501, 800)
---------------------------------------------------------------






---------------------------------------------------------------
141
Channel num :  1
Sample size :  2
Sampling rate :  11025
Frame num :  800
Prams :  (1, 2, 11025, 800, 'NONE', 'not compressed')
Sec :  0.0725623582766
Frequency Width :: 1 to 501[Hz]
Sampling Rate :: 11025.0
Wave Width :: 0.0999546485261[s]
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Sampling Rate :: 11025.0
Wave Width :: 0.0999546485261[s]
elapsed_time:0.122975826263[sec]
(501, 800)
---------------------------------------------------------------






---------------------------------------------------------------
70
Channel num :  1
Sample size :  2
Sampling rate :  11025
Frame num :  800
Prams :  (1, 2, 11025, 800, 'NONE', 'not compressed')
Sec :  0.0725623582766
Frequency Width :: 1 to 501[Hz]
Sampling Rate :: 11025.0
Wave Width :: 0.0999546485261[s]
elapsed_time:0.120440006256[sec]
(501, 800)
---------------------------------------------------------------






---------------------------------------------------------------
71
Channel num :  1
Sample size :  2
Sampling rate :  11025
Frame num :  800
Prams :  (1, 2, 11025, 800, 'NONE', 'not compressed')
Sec :  0.0725623582766
Frequency Width :: 1 to 501[Hz]
Sampling Rate :: 11025.0
Wave Width :: 0.0999546485261[s]
elapsed_time:0.127041101456[sec]
(501, 800)
---------------------------------------------------------------






---------------------------------------------------------------
72
Channel num :  1
Sample size :  2
Sampling rate :  11025
Frame num :  800
Prams :  (1, 2, 11025, 800, 'NONE', 'not compressed')
Sec :  0.0725623582766
Frequency Width :: 1 to 501[Hz]
Sampling Rate :: 11025.0
Wave Width :: 0.0999546485261[s]
elapsed_time:0.123667001724[sec]
(501, 800)
---------------------------------------------------------------






---------------------------------------------------------------
73
Channel num :  1
Sample size :  2
Sampling rate :  11025
Frame num :  800
Prams :  (1, 2, 11025, 800, 'NONE', 'not compressed')
Sec :  0.0725623582766
Frequency Width :: 1 to 501[Hz]
Sampling Rate :: 11025.0
Wave Width :: 0.0999546485261[s]
elapsed_time:0.128376960754[sec]
(501, 800)
---------------------------------------------------------------






---------------------------------------------------------------
74
Channel num :  1
Sample size :  2
Sampling rate :  11025
Frame num :  800
Prams :  (1, 2, 11025, 800, 'NONE', 'not compressed')
Sec :  0.0725623582766
Frequency Width :: 1 to 501[Hz]
Sampling Rate :: 11025.0
Wave Width :: 0.0999546485261[s]
elapsed_time:0.120156049728[sec]
(501, 800)
---------------------------------------------------------------






---------------------------------------------------------------
75
Channel num :  1
Sample size :  2
Sampling rate :  11025
Frame num :  800
Prams :  (1, 2, 11025, 800, 'NONE', 'not compressed')
Sec :  0.0725623582766
Frequency Width :: 1 to 501[Hz]
Sampling Rate :: 11025.0
Wave Width :: 0.0999546485261[s]
elapsed_time:0.150867938995[sec]
(501, 800)
---------------------------------------------------------------






---------------------------------------------------------------
76
Channel num :  1
Sample size :  2
Sampling rate :  11025
Frame num :  800
Prams :  (1, 2, 11025, 800, 'NONE', 'not compressed')
Sec :  0.0725623582766
Frequency Width :: 1 to 501[Hz]
Sampling Rate :: 11025.0
Wave Width :: 0.0999546485261[s]
elapsed_time:0.132109880447[sec]
(501, 800)
---------------------------------------------------------------






---------------------------------------------------------------
77
Channel num :  1
Sample size :  2
Sampling rate :  11025
Frame num :  800
Prams :  (1, 2, 11025, 800, 'NONE', 'not compressed')
Sec :  0.0725623582766
Frequency Width :: 1 to 501[Hz]
Sampling Rate :: 11025.0
Wave Width :: 0.0999546485261[s]
elapsed_time:0.12655878067[sec]
(501, 800)
---------------------------------------------------------------






---------------------------------------------------------------
78
Channel num :  1
Sample size :  2
Sampling rate :  11025
Frame num :  800
Prams :  (1, 2, 11025, 800, 'NONE', 'not compressed')
Sec :  0.0725623582766
Frequency Width :: 1 to 501[Hz]
Sampling Rate :: 11025.0
Wave Width :: 0.0999546485261[s]
elapsed_time:0.133721828461[sec]
(501, 800)
---------------------------------------------------------------






---------------------------------------------------------------
79
Channel num :  1
Sample size :  2
Sampling rate :  11025
Frame num :  800
Prams :  (1, 2, 11025, 800, 'NONE', 'not compressed')
Sec :  0.0725623582766
Frequency Width :: 1 to 501[Hz]
Sampling Rate :: 11025.0
Wave Width :: 0.0999546485261[s]
elapsed_time:0.144102096558[sec]
(501, 800)
---------------------------------------------------------------






---------------------------------------------------------------
8
Channel num :  1
Sample size :  2
Sampling rate :  11025
Frame num :  800
Prams :  (1, 2, 11025, 800, 'NONE', 'not compressed')
Sec :  0.0725623582766
Frequency Width :: 1 to 501[Hz]
Sampling Rate :: 11025.0
Wave Width :: 0.0999546485261[s]
elapsed_time:0.121063947678[sec]
(501, 800)
---------------------------------------------------------------






---------------------------------------------------------------
80
Channel num :  1
Sample size :  2
Sampling rate :  11025
Frame num :  800
Prams :  (1, 2, 11025, 800, 'NONE', 'not compressed')
Sec :  0.0725623582766
Frequency Width :: 1 to 501[Hz]
Sampling Rate :: 11025.0
Wave Width :: 0.0999546485261[s]
elapsed_time:0.125273942947[sec]
(501, 800)
---------------------------------------------------------------






---------------------------------------------------------------
81
Channel num :  1
Sample size :  2
Sampling rate :  11025
Frame num :  800
Prams :  (1, 2, 11025, 800, 'NONE', 'not compressed')
Sec :  0.0725623582766
Frequency Width :: 1 to 501[Hz]
Sampling Rate :: 11025.0
Wave Width :: 0.0999546485261[s]
elapsed_time:0.12973690033[sec]
(501, 800)
---------------------------------------------------------------






---------------------------------------------------------------
82
Channel num :  1
Sample size :  2
Sampling rate :  11025
Frame num :  800
Prams :  (1, 2, 11025, 800, 'NONE', 'not compressed')
Sec :  0.0725623582766
Frequency Width :: 1 to 501[Hz]
Sampling Rate :: 11025.0
Wave Width :: 0.0999546485261[s]
elapsed_time:0.126062870026[sec]
(501, 800)
---------------------------------------------------------------






---------------------------------------------------------------
83
Channel num :  1
Sample size :  2
Sampling rate :  11025
Frame num :  800
Prams :  (1, 2, 11025, 800, 'NONE', 'not compressed')
Sec :  0.0725623582766
Frequency Width :: 1 to 501[Hz]
Sampling Rate :: 11025.0
Wave Width :: 0.0999546485261[s]
elapsed_time:0.119088172913[sec]
(501, 800)
---------------------------------------------------------------






---------------------------------------------------------------
84
Channel num :  1
Sample size :  2
Sampling rate :  11025
Frame num :  800
Prams :  (1, 2, 11025, 800, 'NONE', 'not compressed')
Sec :  0.0725623582766
Frequency Width :: 1 to 501[Hz]
Sampling Rate :: 11025.0
Wave Width :: 0.0999546485261[s]
elapsed_time:0.128723144531[sec]
(501, 800)
---------------------------------------------------------------






---------------------------------------------------------------
85
Channel num :  1
Sample size :  2
Sampling rate :  11025
Frame num :  800
Prams :  (1, 2, 11025, 800, 'NONE', 'not compressed')
Sec :  0.0725623582766
Frequency Width :: 1 to 501[Hz]
Sampling Rate :: 11025.0
Wave Width :: 0.0999546485261[s]
elapsed_time:0.139163970947[sec]
(501, 800)
---------------------------------------------------------------






---------------------------------------------------------------
86
Channel num :  1
Sample size :  2
Sampling rate :  11025
Frame num :  800
Prams :  (1, 2, 11025, 800, 'NONE', 'not compressed')
Sec :  0.0725623582766
Frequency Width :: 1 to 501[Hz]
Sampling Rate :: 11025.0
Wave Width :: 0.0999546485261[s]
elapsed_time:0.126774787903[sec]
(501, 800)
---------------------------------------------------------------






---------------------------------------------------------------
87
Channel num :  1
Sample size :  2
Sampling rate :  11025
Frame num :  800
Prams :  (1, 2, 11025, 800, 'NONE', 'not compressed')
Sec :  0.0725623582766
Frequency Width :: 1 to 501[Hz]
Sampling Rate :: 11025.0
Wave Width :: 0.0999546485261[s]
elapsed_time:0.136733055115[sec]
(501, 800)
---------------------------------------------------------------






---------------------------------------------------------------
88
Channel num :  1
Sample size :  2
Sampling rate :  11025
Frame num :  800
Prams :  (1, 2, 11025, 800, 'NONE', 'not compressed')
Sec :  0.0725623582766
Frequency Width :: 1 to 501[Hz]
Sampling Rate :: 11025.0
Wave Width :: 0.0999546485261[s]
elapsed_time:0.128921031952[sec]
(501, 800)
---------------------------------------------------------------






---------------------------------------------------------------
89
Channel num :  1
Sample size :  2
Sampling rate :  11025
Frame num :  800
Prams :  (1, 2, 11025, 800, 'NONE', 'not compressed')
Sec :  0.0725623582766
Frequency Width :: 1 to 501[Hz]
Sampling Rate :: 11025.0
Wave Width :: 0.0999546485261[s]
elapsed_time:0.119868993759[sec]
(501, 800)
---------------------------------------------------------------






---------------------------------------------------------------
9
Channel num :  1
Sample size :  2
Sampling rate :  11025
Frame num :  800
Prams :  (1, 2, 11025, 800, 'NONE', 'not compressed')
Sec :  0.0725623582766
Frequency Width :: 1 to 501[Hz]
Sampling Rate :: 11025.0
Wave Width :: 0.0999546485261[s]
elapsed_time:0.119338989258[sec]
(501, 800)
---------------------------------------------------------------






---------------------------------------------------------------
90
Channel num :  1
Sample size :  2
Sampling rate :  11025
Frame num :  800
Prams :  (1, 2, 11025, 800, 'NONE', 'not compressed')
Sec :  0.0725623582766
Frequency Width :: 1 to 501[Hz]
Sampling Rate :: 11025.0
Wave Width :: 0.0999546485261[s]
elapsed_time:0.136461019516[sec]
(501, 800)
---------------------------------------------------------------






---------------------------------------------------------------
91
Channel num :  1
Sample size :  2
Sampling rate :  11025
Frame num :  800
Prams :  (1, 2, 11025, 800, 'NONE', 'not compressed')
Sec :  0.0725623582766
Frequency Width :: 1 to 501[Hz]
Sampling Rate :: 11025.0
Wave Width :: 0.0999546485261[s]
elapsed_time:0.127684116364[sec]
(501, 800)
---------------------------------------------------------------






---------------------------------------------------------------
92
Channel num :  1
Sample size :  2
Sampling rate :  11025
Frame num :  800
Prams :  (1, 2, 11025, 800, 'NONE', 'not compressed')
Sec :  0.0725623582766
Frequency Width :: 1 to 501[Hz]
Sampling Rate :: 11025.0
Wave Width :: 0.0999546485261[s]
elapsed_time:0.144876003265[sec]
(501, 800)
---------------------------------------------------------------






---------------------------------------------------------------
93
Channel num :  1
Sample size :  2
Sampling rate :  11025
Frame num :  800
Prams :  (1, 2, 11025, 800, 'NONE', 'not compressed')
Sec :  0.0725623582766
Frequency Width :: 1 to 501[Hz]
Sampling Rate :: 11025.0
Wave Width :: 0.0999546485261[s]
elapsed_time:0.11972117424[sec]
(501, 800)
---------------------------------------------------------------






---------------------------------------------------------------
94
Channel num :  1
Sample size :  2
Sampling rate :  11025
Frame num :  800
Prams :  (1, 2, 11025, 800, 'NONE', 'not compressed')
Sec :  0.0725623582766
Frequency Width :: 1 to 501[Hz]
Sampling Rate :: 11025.0
Wave Width :: 0.0999546485261[s]
elapsed_time:0.137891054153[sec]
(501, 800)
---------------------------------------------------------------






---------------------------------------------------------------
95
Channel num :  1
Sample size :  2
Sampling rate :  11025
Frame num :  800
Prams :  (1, 2, 11025, 800, 'NONE', 'not compressed')
Sec :  0.0725623582766
Frequency Width :: 1 to 501[Hz]
Sampling Rate :: 11025.0
Wave Width :: 0.0999546485261[s]
elapsed_time:0.135894060135[sec]
(501, 800)
---------------------------------------------------------------






---------------------------------------------------------------
96
Channel num :  1
Sample size :  2
Sampling rate :  11025
Frame num :  800
Prams :  (1, 2, 11025, 800, 'NONE', 'not compressed')
Sec :  0.0725623582766
Frequency Width :: 1 to 501[Hz]
Sampling Rate :: 11025.0
Wave Width :: 0.0999546485261[s]
elapsed_time:0.127868890762[sec]
(501, 800)
---------------------------------------------------------------






---------------------------------------------------------------
97
Channel num :  1
Sample size :  2
Sampling rate :  11025
Frame num :  800
Prams :  (1, 2, 11025, 800, 'NONE', 'not compressed')
Sec :  0.0725623582766
Frequency Width :: 1 to 501[Hz]
Sampling Rate :: 11025.0
Wave Width :: 0.0999546485261[s]
elapsed_time:0.136746168137[sec]
(501, 800)
---------------------------------------------------------------






---------------------------------------------------------------
98
Channel num :  1
Sample size :  2
Sampling rate :  11025
Frame num :  800
Prams :  (1, 2, 11025, 800, 'NONE', 'not compressed')
Sec :  0.0725623582766
Frequency Width :: 1 to 501[Hz]
Sampling Rate :: 11025.0
Wave Width :: 0.0999546485261[s]
elapsed_time:0.116450071335[sec]
(501, 800)
---------------------------------------------------------------






---------------------------------------------------------------
99
Channel num :  1
Sample size :  2
Sampling rate :  11025
Frame num :  800
Prams :  (1, 2, 11025, 800, 'NONE', 'not compressed')
Sec :  0.0725623582766
Frequency Width :: 1 to 501[Hz]
Sampling Rate :: 11025.0
Wave Width :: 0.0999546485261[s]
elapsed_time:0.121742010117[sec]
(501, 800)
---------------------------------------------------------------



/Users/YumaKajihara/.pyenv/versions/anaconda2-2.5.0/lib/python2.7/site-packages/matplotlib/pyplot.py:516: RuntimeWarning: More than 20 figures have been opened. Figures created through the pyplot interface (`matplotlib.pyplot.figure`) are retained until explicitly closed and may consume too much memory. (To control this warning, see the rcParam `figure.max_open_warning`).
  max_open_warning, RuntimeWarning)

In [4]:
def split_wav(wavfile, split_count):
    wr = wave.open(wavfile, "rb")
    print "\n\n"
    print "---------------------------------------------------------------"
    print wavfile.split('/')[-1].split('.')[0]
    print "Channel num : ", wr.getnchannels()
    print "Sample size : ", wr.getsampwidth()
    print "Sampling rate : ", wr.getframerate()
    print "Frame num : ", wr.getnframes()
    print "Prams : ", wr.getparams()
    print "Sec : ", float(wr.getnframes()) / wr.getframerate()
    data = wr.readframes(wr.getnframes())
    num_data = fromstring(data, dtype = int16)
    if (wr.getnchannels() == 2):
        left = num_data[::2]
        right = num_data[1::2]
    elif  wr.getnchannels() == 1:
        left = num_data
    else:
        return
    wr.close()
    sample_late = float(wr.getframerate())
    points = wr.getnframes()
    T = int(points / split_count)
    start_pos = 0
    T = 200
    for i in range(T):
        w = wave.Wave_write("./wavs/"+str(i)+".wav")
        w.setnchannels(1)
        w.setsampwidth(2)
        w.setframerate(sample_late)
        data = left[start_pos:start_pos+split_count]
        data = struct.pack("h" * len(data), *data)
        w.writeframes(data)
        w.close()
        start_pos = start_pos + split_count

In [5]:
split_wav('oya.wav', 800)




---------------------------------------------------------------
oya
Channel num :  2
Sample size :  2
Sampling rate :  11025
Frame num :  1102500
Prams :  (2, 2, 11025, 1102500, 'NONE', 'not compressed')
Sec :  100.0

In [ ]: