In [1]:

    

from essentia import standard


    

In [11]:

    

from  IPython.lib.display import Audio


    

In [6]:

    

import numpy
from matplotlib import *
%matplotlib inline


    

In [3]:

    

Maker = standard.AudioOnsetsMarker()


    

In [54]:

    

pas = 44100


    

In [67]:

    

l = [sin(i*2*3.14/pas) for i in range(pas)]
l_h = [sin(i*2*3.14/pas) + 0.8*sin(i*4*3.14/pas) + 0.6*sin(i*8*3.14/pas) for i in range(pas)]


    

In [68]:

    

subplot(2,1,1)
plot(l)
subplot(2,1,2)
plot(l_h)


    

    
Out[68]:





[<matplotlib.lines.Line2D at 0x7f88e302c4d0>]






    

In [65]:

    

n = numpy.array(l, dtype=float32)
s = Maker(n)


    

In [66]:

    

Audio(s, rate = pas)


    

    
Out[66]:





                
              

In [70]:

    

def append(s1,s2):
    r = []
    for i in s1:
        r.append(i)
    for j in s2:
        r.append(j)
    return numpy.array(r, dtype=float32)


    

In [71]:

    

l_l_h = append(l, l_h)


    

In [72]:

    

plot(l_l_h)


    

    
Out[72]:





[<matplotlib.lines.Line2D at 0x7f88e2f0f990>]






    

In [73]:

    

a = Maker(l_l_h)


    

In [74]:

    

Audio(a, rate = pas)


    

    
Out[74]:





                
              

In [75]:

    

LA = [55, 110, 220, 440, 880, 1760, 3520, 7040]


    

In [81]:

    

l_LA = [sin(i*2*j*3.14/pas) for j in LA for i in range(pas) ]


    

In [82]:

    

a = Maker(l_LA)


    

In [83]:

    

Audio(a, rate = pas)


    

    
Out[83]:





                
              

In [84]:

    

plot(l_LA)


    

    
Out[84]:





[<matplotlib.lines.Line2D at 0x7f88e2e4e610>]






    

In [85]:

    

hist(l_LA)


    

    
Out[85]:





(array([ 72268.,  31873.,  26038.,  23594.,  22580.,  22616.,  23604.,
         26061.,  31881.,  72285.]),
 array([ -9.99999999e-01,  -7.99999999e-01,  -5.99999999e-01,
         -3.99999999e-01,  -1.99999999e-01,   7.25163929e-10,
          2.00000001e-01,   4.00000000e-01,   6.00000000e-01,
          8.00000000e-01,   1.00000000e+00]),
 <a list of 10 Patch objects>)






    

In [87]:

    

black = { 'do': [32.7,65.41,130.81,261.63,523.25,1046.5,2093,4186.01],
         're': [36.71,73.42,146.83,293.66,587.33,1174.66,2349.32,4698.64],
         'mi': [41.2,82.41,164.81,329.63,659.26,1318.51,2637.02,5274.04],
         'fa': [43.65,87.31,174.61,349.23,698.46,1396.91,2793.83,5587.65],
         'sol': [49,98,196,392,783.99,1567.98,3135.96,6271.93],
         'la': [55, 110, 220, 440, 880, 1760, 3520, 7040],
         'si': [61.74,123.47,246.94,493.88,987.77,1975.53,3951.07,7902.13],
         }


    

In [137]:

    

Partition = ['do', 're', 'mi']
Hauteur = [0,0,0]
Duree = [1,1,2]
def Sequence(Partition, Hauteur, Duree):
    P = []
    Sequence_C = []
    for i in xrange(len(Partition)):
        for j in range(Duree[i]):
            P.append(Partition[i])
        
            Sequence_C.append([sin(numpy.pi*2*j*black[Partition[i]][Hauteur[i]]/pas) for i in xrange(len(Partition)) for j in xrange(pas)])
        
    S = Sequence_C[0]
    for i in (xrange(len(Sequence_C)-1)):
        S = append(S, Sequence_C[i+1])
        
    return S


    

In [138]:

    

S_phd = Sequence(Partition, Hauteur, Duree)


    

In [139]:

    

a = Maker(S_phd)


    

In [136]:

    

Audio(a, rate = pas)


    

    
Out[136]:





                
              

In [140]:

    

plot(S_phd)


    

    
Out[140]:





[<matplotlib.lines.Line2D at 0x7f88e2a89e10>]






    

In [126]:

    

Pi


    

    




---------------------------------------------------------------------------
NameError                                 Traceback (most recent call last)
<ipython-input-126-38a0d74848bd> in <module>()
----> 1 Pi

NameError: name 'Pi' is not defined

In [151]:

    

plot(sin([2*numpy.pi*i*100 for i in range(10000)]))


    

    
Out[151]:





[<matplotlib.lines.Line2D at 0x7f88dfa0cfd0>]






    

In [147]:

    

100:1


    

    




  File "<ipython-input-147-d6e9e2d71575>", line 1
    100:1
       ^
SyntaxError: invalid syntax

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