Bonjour,

Mon but est de sortir les segments d'attaque et de silence via la fft (Fast Fourier Transform)
Mon code donne un tableau fft mais étant nul en math je ne sait pas comment interpréter ces données.

tableau fft :
Code : Sélectionner tout - Visualiser dans une fenêtre à part
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-4.00000000e+00 +0.00000000e+00j   3.15250042e+00 -5.28945903e+00j
   5.04967729e+00 +3.82427557e+00j  -2.65949595e+00 -4.47830713e-01j
   3.15243658e+00 -3.50781866e+00j   3.75134099e+00 +4.74717309e+00j
  -5.75498450e-01 -4.06493179e+00j   1.86300940e+00 -6.12297237e-01j
   1.19407655e+00 -1.44506825e+07j  -7.74342699e-01 -1.97155182e+00j
   3.44971070e+00 -2.25886963e+00j   7.55720355e-01 +6.29721631e+00j
   1.23506183e+00 +4.02728643e-01j   4.45351752e+00 -3.69556646e+00j
   1.90360830e-02 +9.46969934e-01j   1.88656134e+00 -1.87760811e+00j
   8.79629762e+00 +1.61800904e+00j  -3.56799257e+00 +8.76233268e-01j
  -6.15863923e-01 -2.37019892e+00j   4.28537159e+00 +4.61704948e+00j
   4.44514271e-01 +4.78837940e-01j   7.48467881e-01 -8.11657099e-01j
   3.47243095e+00 +7.15322268e+00j   1.77828802e+00 +1.53797317e+00j
  -2.00710284e+00 -5.65512505e+00j   1.53317590e+00 +3.12030836e+00j
  -1.69759488e+00 +4.80652929e+00j   5.75502171e+00 -3.73107932e+00j
   2.36276649e+00 +3.47672459e+00j  -7.60927167e-01 +2.01652278e+00j
   5.09632785e+00 -5.40726680e-01j   6.26548010e+00 +2.73158180e+00j
  -4.46263235e+00 -2.94091110e-01j   1.48937818e+00 -3.32670400e-01j
   5.54596872e+00 +2.06452651e+00j  -2.45873862e+00 +7.37966801e-01j
   2.36804565e+00 -1.86218758e+00j   3.39657706e+00 +2.32773795e+00j
  -5.00532388e-01 -3.54116609e+00j   2.74709764e+00 -1.71013342e+00j
  -7.69979186e-01 +2.43907320e+00j   4.97532620e-01 -3.85347607e+00j
   4.26578124e+00 -4.44593471e+00j  -3.93069983e+00 +6.24479348e+00j
   3.29467058e+00 +1.23190308e-01j   4.23219538e+00 -1.16798696e+00j
   1.88213781e+00 +1.61501049e+00j  -5.31106717e-01 +1.70135467e+00j
   5.48315462e+00 -1.35909067e+00j  -3.96154682e-01 +4.98207383e-01j
  -2.75801951e+00 -6.54447521e-01j   7.41666103e+00 +2.56263581e+00j
   1.81883612e+00 +1.41249783e+00j  -1.56772467e+00 -4.10701647e+00j
   2.17646396e+00 +1.81616385e+00j  -1.49370026e+00 +3.61571265e-01j
  -1.11585069e-01 -5.86665543e+00j   3.87144674e+00 +2.55454789e+00j
  -2.90712778e+00 +1.24113490e+00j   5.30422947e+00 -1.63199107e+00j
   4.63367291e+00 -2.26133829e-01j  -1.86724455e+00 +7.78461504e-01j
   3.54226349e+00 +5.36119987e-01j   3.67921738e+00 +2.26480045e+00j
  -2.29741361e+00 +1.33221949e+00j   2.30138078e+00 +1.34176711e-02j
   4.42786162e+00 +1.54486081e+00j  -2.87637028e+00 -5.76121673e-01j
   2.63983216e+00 -6.62947757e-01j   5.08680688e+00 +3.35356756e+00j
  -1.24604984e+00 -2.74004476e+00j   2.51875413e+00 -1.40487502e+00j
   1.84061227e+00 +5.37144514e+00j   1.07633640e+00 -1.42361549e+00j
   3.81200013e+00 -2.24298709e+00j   3.12891841e-01 +4.92329497e+00j
   5.34030066e-01 +4.41858752e-01j   5.71978168e+00 -2.24134791e+00j
  -1.56693898e+00 +2.30866899e+00j  -7.69606174e-01 +9.55496358e-02j
   6.81097361e+00 +2.71976518e-01j   5.55682885e-01 +7.41771159e-01j
  -1.40765495e+00 -1.72098609e+00j   5.80013657e+00 +1.82333361e+00j
   1.29517635e+00 +1.50719848e+00j  -1.34453759e+00 -3.92747759e+00j
   2.83821733e+00 +2.29489584e+00j   1.53920009e+00 +3.09403729e+00j
   7.70104608e-01 -4.73078613e+00j   1.08122204e+00 +2.86208680e+00j
   1.09678522e+00 +4.20393097e+00j   3.50258757e+00 -2.63485069e+00j
   2.95444423e+00 +6.83800060e-01j  -1.73033058e+00 +9.79141462e-01j
   4.71331015e+00 -3.07752021e+00j   4.53250027e+00 +5.57683850e-01j
  -3.45720439e+00 +1.79927666e-01j   1.09177492e+00 +4.40488405e+00j
   2.38909915e+00 -6.34316878e-02j  -3.24264852e+00 -1.35654506e+00j
   1.32605411e+00 -1.69522231e+00j   1.43371958e+00 +7.60824289e+00j
   3.55981058e+00 +3.94312536e-02j   3.83296143e+00 -2.06136428e+00j
   6.08925524e+00 +3.31872034e+00j   2.16282831e+00 +2.57327362e+00j
   1.46968974e+00 -2.22257500e+00j  -1.15640460e+00 +5.83164165e+00j
  -2.10587454e+00 -3.83072590e-01j   4.03032662e+00 -3.84854026e+00j
  -2.21753553e+00 +5.28645411e+00j  -1.93395853e+00 -2.67477553e+00j
   8.20640761e+00 +1.92260528e+00j  -2.91702355e+00 +1.42013608e+00j
   3.31337227e+00 -1.63675242e+00j   5.27516008e+00 +6.05882242e+00j
   2.01320360e+00 +2.89368356e+00j  -2.12298614e+00 -2.77560521e+00j
   2.54436704e+00 +7.20902375e-01j   1.20246485e+00 +5.32336100e+00j
   1.75627692e+00 -1.07031366e+00j  -4.72353863e+00 +1.14117049e+01j
   2.87428275e+00 +8.34306684e+00j   4.11409512e+00 -1.00653415e+01j
   1.11850831e+00 -8.53410213e+00j  -1.39159123e+01 +1.43571536e+01j
  -3.47434488e+00 +1.15495100e+00j   6.88968650e+00 +5.54125061e+00j
  -8.28232165e+00 +3.41597527e+00j   6.47789815e+00 +6.41138931e-01j
   1.35635927e+00 +1.05267187e+01j  -7.18572527e+00 +1.78642360e+00j
   4.22863868e+00 -2.54282804e+00j   4.05258902e+00 -3.63545376e+00j
  -9.49506247e-02 -5.01661348e+00j  -7.01788671e+00 +2.42696347e+00j
   8.03484300e+00 -3.11866961e+00j  -2.03112583e+00 -1.98583880e+00j
   5.72605598e+00 +4.12332080e+00j   7.39739132e-01 +6.77700362e+00j
   4.88079659e+00 -6.86631509e+00j   9.15739438e+00 +7.04819995e+00j
  -1.55834740e+01 +1.77724713e+01j   1.75074855e+00 -1.59934967e+00j
  -7.92520892e+00 -2.17072929e+00j  -7.78136555e+00 +3.38074232e+00j
   4.58953240e+00 -9.62189727e+00j   7.00000000e+00 -1.73205081e+00j
   3.45824528e+00 +5.52866418e+00j   1.14161888e+01 -1.04986492e+01j
   1.37191148e+01 +8.72713874e+00j   3.10816683e+00 +2.24110773e+00j
  -1.06623446e+01 +1.63540420e+00j   1.58402867e+01 -8.57128379e+00j
  -1.05778621e+01 -1.67602215e-01j  -1.88567454e+00 +6.93602795e+00j
  -3.17739534e+00 +3.39821890e+00j   3.51925782e+00 +1.28159072e+00j
  -4.16178982e+00 +1.44566186e+01j   1.42312326e+01 +1.63674785e+01j
   2.58262587e+00 +6.34719594e+00j  -1.10575554e+00 -1.86731689e+01j
   6.01608929e+00 +3.89726982e+00j   1.06096383e+01 -9.52831269e+00j
   4.74269902e-01 -1.26846691e+01j   2.96108556e+01 +7.67685832e+00j
  -1.02178955e+01 +1.69947638e+00j   7.03621177e+00 -8.06205842e+00j
  -1.72358168e+01 -5.38526940e-01j  -4.67405260e+00 -1.12074721e+01j
   1.44485656e+01 +1.29649973e+00j   5.30919127e+00 +1.54083677e+00j
   8.18391392e+00 +2.21768859e+00j   2.95900824e+01 -9.58200477e+00j
   1.51381460e+01 -6.14437588e+00j  -9.99557862e+00 -1.31297939e+00j
   3.64436819e+00 -4.57621055e+00j   1.00408032e+01 +2.25166517e+01j
  -6.90801402e+00 -2.69156315e-02j  -8.68690472e+00 -2.39791159e+00j
  -1.12301987e+01 -4.60445012e+00j   1.95832851e+01 +7.40204115e+00j
  -5.15938265e+00 +1.07628959e+01j  -1.37770171e+01 -2.79980245e+00j
   9.71976731e+00 -2.12108326e+01j   1.05725770e+01 +1.53778138e+01j
   3.82484832e+00 -3.98906993e+00j   1.16797677e+01 +1.43709136e+01j
  -1.99945503e+01 +1.47734580e+01j   6.76911835e+00 +1.16873563e+01j
  -5.22180256e+00 -4.64665328e+00j  -8.32629259e+00 -4.33536303e+00j
   5.40068229e+00 -4.65158663e+00j  -2.36848677e+00 -7.02451340e+00j
  -2.28073979e+01 +4.91122945e+00j  -4.90749971e+00 -2.27153488e+01j
   1.11230352e+01 -9.82292704e+00j   9.58881278e+00 +2.91740715e+00j
   1.87355255e+00 +1.25601794e+01j  -1.89911679e+00 +1.54687344e+01j
  -1.32629667e+01 +2.41069101e+01j  -8.82802661e+00 -4.50913674e+00j
   1.72188255e+01 +3.16595436e+00j   2.45669729e+01 -6.51241977e+00j
   3.06947216e+00 +3.58238043e+00j   1.84246756e+01 +9.51045105e+00j
   2.05336497e+00 +2.22462222e+01j  -1.13807361e+01 +2.56246854e-02j
   7.98112724e+00 -1.45410245e+01j   2.65096133e+00 -1.41053443e+01j
  -2.38466297e+01 +3.71144035e+00j   1.71877239e+01 +6.48894292e+00j
   1.14280923e+01 +6.25993964e+00j   5.35406126e+00 +5.56292524e-01j
  -5.65005336e+00 -6.83823025e+00j   2.02001966e+01 -8.74726944e+00j
   2.11255621e+00 -2.92619656e+00j  -1.04442554e+01 +1.41521687e+01j
  -1.13927606e+01 -8.09568323e+00j  -4.70529203e+00 +2.35831248e+00j
  -2.43225947e+00 +1.16547764e+00j  -1.11616530e+01 +1.39494224e+00j
  -1.75358916e+00 +4.02188722e+00j   1.75509542e+00 -1.42392243e+01j
  -4.47517978e+00 -3.41000775e+00j   1.30617021e+01 -8.98808191e+00j
   1.65383591e+01 +3.44009206e+00j   9.46090580e+00 +1.69520232e+00j
   1.77460823e+01 -8.69590249e+00j  -1.92412866e+00 +7.25745357e+00j
  -8.40475761e+00 -6.30369172e+00j  -5.77856437e+00 -9.99892674e+00j
   1.88230002e+00 +1.99180864e+00j  -3.83965422e+00 +4.80129080e+00j
  -2.70578241e+00 -3.23423396e+00j  -2.49312156e+00 +8.13317699e+00j
  -1.15782353e+01 -6.05846849e+00j  -4.51217144e-02 -9.19848119e+00j
   8.74472549e+00 +8.36545203e+00j   1.96545447e+00 +4.30386440e+00j
   6.66145855e+00 -1.04511172e+00j   3.41128133e+00 +2.54710718e-01j
  -5.07842353e+00 -4.16681430e-01j   3.64280896e+00 +2.06251300e+00j
   3.31508168e+00 +3.89868176e+00j   2.02409971e+00 -5.04422982e+00j
   1.05213097e+01 +1.62482018e+00j   7.98804984e+00 +9.55249462e+00j
  -1.41911982e-02 -1.94990046e+00j   5.96503239e+00 +1.95226789e+00j
  -6.86666546e+00 +4.61701445e+00j   3.70877718e+00 -7.55139204e+00j
   5.16152201e+00 -6.56098333e+00j   1.65500048e+00 -3.70024407e+00j
  -3.09612055e+00 +6.90346507e-01j  -1.29115096e+00 +4.21695504e+00j
   1.02953498e+00 +6.33696097e+00j   5.14358024e+00 -2.20939886e+00j
   5.57076762e-01 +7.09042090e+00j  -9.50971140e+00 +5.00104926e+00j
  -7.26529822e+00 +9.38795253e-01j   4.93178556e+00 +4.37809567e+00j
   3.89159337e+00 +1.85208334e+00j  -5.80549622e+00 +3.02431284e+00j
  -4.16736214e+00 +2.72148233e+00j   2.70909190e+01 +6.88325653e+00j
   2.48669633e+00 -5.42310243e+00j  -2.35997012e+00 -8.46824321e+00j
   7.77056819e+00 +2.19710790e+00j  -6.90612809e-01 +4.75969828e+00j
   1.34821410e+01 +1.34037400e+01j  -3.72049883e+00 +1.46111880e+01j
   2.95823076e+00 +1.66827880e+01j  -1.60197682e+01 +7.75543531e+00j
   8.83908340e+00 -7.93794970e+00j   2.34468710e+01 +2.23890132e+01j
  -1.66633043e+01 +1.24007621e+01j   1.51846145e+00 +4.00950361e+00j
  -8.71674337e+00 -2.62181012e+01j   3.04747682e+00 +2.23878702e+01j
   5.64384580e+00 -5.56209485e+00j   2.25622220e+01 -2.67918449e+01j
  -2.70204603e+00 +7.14252878e+00j   7.30799897e+00 -3.82894008e+01j
  -1.36174409e+01 +3.29169792e+01j   2.33882850e+01 +7.65809093e+00j
   6.06045220e+00 +1.03257381e+01j  -4.25020961e+01 +7.64243839e+00j
  -2.11854726e+01 +4.16095818e-01j  -1.70325538e+01 -5.83215957e+00j
   5.31891328e+00 +6.81638362e+00j  -1.87338519e+01 -1.11443311e+01j
  -3.01211155e+01 -4.28531220e+01j  -1.45146291e+01 -1.79899365e+00j
   5.00000000e+00 +6.06217783e+01j  -1.56376005e+00 +7.98641810e+00j
  -5.97901914e+00 -2.80337831e+00j   9.64005322e+00 +1.86933470e+01j
   1.11433706e+01 +3.95468439e+01j  -8.88571944e+00 -2.71301701e+01j
   1.98399083e+01 +1.60471220e+01j   5.53243224e+01 -3.57471504e+01j
  -5.94735783e+00 -6.52709776e+01j   4.03049668e+01 +5.95247408e+00j
  -4.02152793e+01 -3.64629093e+00j   5.23052283e+01 +2.80818697e+01j
  -4.93363582e+01 -2.18115549e+01j   3.99759774e+01 -2.12995174e+01j
  -1.90580894e+01 +8.89009390e+00j  -2.06563169e+00 +3.98566719e+01j
   2.73124999e+01 +1.07224937e+01j  -1.88705983e+01 +2.85173090e+01j
  -2.37006159e+01 +3.28589793e+00j  -3.43140179e+01 +5.20041252e+01j
   4.19627452e+00 +1.20255512e+01j   5.70516643e+01 -1.62426228e-01j
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   9.71976731e+00 +2.12108326e+01j  -1.37770171e+01 +2.79980245e+00j
  -5.15938265e+00 -1.07628959e+01j   1.95832851e+01 -7.40204115e+00j
  -1.12301987e+01 +4.60445012e+00j  -8.68690472e+00 +2.39791159e+00j
  -6.90801402e+00 +2.69156320e-02j   1.00408032e+01 -2.25166517e+01j
   3.64436819e+00 +4.57621055e+00j  -9.99557862e+00 +1.31297939e+00j
   1.51381460e+01 +6.14437588e+00j   2.95900824e+01 +9.58200477e+00j
   8.18391392e+00 -2.21768859e+00j   5.30919127e+00 -1.54083677e+00j
   1.44485656e+01 -1.29649973e+00j  -4.67405260e+00 +1.12074721e+01j
  -1.72358168e+01 +5.38526940e-01j   7.03621177e+00 +8.06205842e+00j
  -1.02178955e+01 -1.69947638e+00j   2.96108556e+01 -7.67685832e+00j
   4.74269901e-01 +1.26846691e+01j   1.06096383e+01 +9.52831269e+00j
   6.01608929e+00 -3.89726982e+00j  -1.10575554e+00 +1.86731689e+01j
   2.58262587e+00 -6.34719594e+00j   1.42312326e+01 -1.63674785e+01j
  -4.16178982e+00 -1.44566186e+01j   3.51925782e+00 -1.28159072e+00j
  -3.17739534e+00 -3.39821890e+00j  -1.88567454e+00 -6.93602795e+00j
  -1.05778621e+01 +1.67602216e-01j   1.58402867e+01 +8.57128379e+00j
  -1.06623446e+01 -1.63540421e+00j   3.10816683e+00 -2.24110773e+00j
   1.37191148e+01 -8.72713874e+00j   1.14161888e+01 +1.04986492e+01j
   3.45824528e+00 -5.52866418e+00j   7.00000000e+00 +1.73205081e+00j
   4.58953240e+00 +9.62189727e+00j  -7.78136555e+00 -3.38074232e+00j
  -7.92520892e+00 +2.17072929e+00j   1.75074855e+00 +1.59934967e+00j
  -1.55834740e+01 -1.77724713e+01j   9.15739438e+00 -7.04819995e+00j
   4.88079659e+00 +6.86631509e+00j   7.39739132e-01 -6.77700362e+00j
   5.72605598e+00 -4.12332080e+00j  -2.03112583e+00 +1.98583880e+00j
   8.03484301e+00 +3.11866961e+00j  -7.01788671e+00 -2.42696347e+00j
  -9.49506300e-02 +5.01661346e+00j   4.05258902e+00 +3.63545376e+00j
   4.22863868e+00 +2.54282804e+00j  -7.18572527e+00 -1.78642360e+00j
   1.35635927e+00 -1.05267187e+01j   6.47789815e+00 -6.41138931e-01j
  -8.28232165e+00 -3.41597527e+00j   6.88968650e+00 -5.54125061e+00j
  -3.47434488e+00 -1.15495100e+00j  -1.39159123e+01 -1.43571536e+01j
   1.11850831e+00 +8.53410213e+00j   4.11409512e+00 +1.00653415e+01j
   2.87428275e+00 -8.34306684e+00j  -4.72353863e+00 -1.14117049e+01j
   1.75627692e+00 +1.07031366e+00j   1.20246485e+00 -5.32336100e+00j
   2.54436704e+00 -7.20902358e-01j  -2.12298614e+00 +2.77560521e+00j
   2.01320360e+00 -2.89368356e+00j   5.27516008e+00 -6.05882242e+00j
   3.31337227e+00 +1.63675242e+00j  -2.91702355e+00 -1.42013608e+00j
   8.20640761e+00 -1.92260528e+00j  -1.93395853e+00 +2.67477553e+00j
  -2.21753553e+00 -5.28645411e+00j   4.03032662e+00 +3.84854026e+00j
  -2.10587454e+00 +3.83072590e-01j  -1.15640460e+00 -5.83164165e+00j
   1.46968974e+00 +2.22257500e+00j   2.16282831e+00 -2.57327362e+00j
   6.08925524e+00 -3.31872034e+00j   3.83296143e+00 +2.06136428e+00j
   3.55981058e+00 -3.94312536e-02j   1.43371958e+00 -7.60824289e+00j
   1.32605411e+00 +1.69522232e+00j  -3.24264852e+00 +1.35654506e+00j
   2.38909915e+00 +6.34316874e-02j   1.09177492e+00 -4.40488405e+00j
  -3.45720439e+00 -1.79927666e-01j   4.53250027e+00 -5.57683850e-01j
   4.71331015e+00 +3.07752021e+00j  -1.73033058e+00 -9.79141462e-01j
   2.95444423e+00 -6.83800061e-01j   3.50258757e+00 +2.63485069e+00j
   1.09678522e+00 -4.20393097e+00j   1.08122204e+00 -2.86208680e+00j
   7.70104609e-01 +4.73078613e+00j   1.53920009e+00 -3.09403729e+00j
   2.83821733e+00 -2.29489584e+00j  -1.34453759e+00 +3.92747759e+00j
   1.29517635e+00 -1.50719848e+00j   5.80013657e+00 -1.82333361e+00j
  -1.40765494e+00 +1.72098610e+00j   5.55682885e-01 -7.41771159e-01j
   6.81097362e+00 -2.71976521e-01j  -7.69606174e-01 -9.55496358e-02j
  -1.56693898e+00 -2.30866899e+00j   5.71978168e+00 +2.24134791e+00j
   5.34030066e-01 -4.41858752e-01j   3.12891841e-01 -4.92329497e+00j
   3.81200013e+00 +2.24298709e+00j   1.07633640e+00 +1.42361549e+00j
   1.84061227e+00 -5.37144514e+00j   2.51875413e+00 +1.40487502e+00j
  -1.24604984e+00 +2.74004476e+00j   5.08680688e+00 -3.35356756e+00j
   2.63983216e+00 +6.62947756e-01j  -2.87637028e+00 +5.76121673e-01j
   4.42786162e+00 -1.54486081e+00j   2.30138078e+00 -1.34176711e-02j
  -2.29741360e+00 -1.33221948e+00j   3.67921738e+00 -2.26480045e+00j
   3.54226349e+00 -5.36119991e-01j  -1.86724455e+00 -7.78461504e-01j
   4.63367291e+00 +2.26133829e-01j   5.30422947e+00 +1.63199107e+00j
  -2.90712778e+00 -1.24113490e+00j   3.87144674e+00 -2.55454789e+00j
  -1.11585069e-01 +5.86665542e+00j  -1.49370026e+00 -3.61571265e-01j
   2.17646396e+00 -1.81616385e+00j  -1.56772467e+00 +4.10701647e+00j
   1.81883612e+00 -1.41249783e+00j   7.41666103e+00 -2.56263581e+00j
  -2.75801951e+00 +6.54447520e-01j  -3.96154682e-01 -4.98207383e-01j
   5.48315462e+00 +1.35909067e+00j  -5.31106717e-01 -1.70135467e+00j
   1.88213782e+00 -1.61501049e+00j   4.23219538e+00 +1.16798696e+00j
   3.29467058e+00 -1.23190317e-01j  -3.93069983e+00 -6.24479348e+00j
   4.26578124e+00 +4.44593471e+00j   4.97532620e-01 +3.85347607e+00j
  -7.69979186e-01 -2.43907320e+00j   2.74709764e+00 +1.71013342e+00j
  -5.00532388e-01 +3.54116609e+00j   3.39657706e+00 -2.32773795e+00j
   2.36804565e+00 +1.86218758e+00j  -2.45873862e+00 -7.37966801e-01j
   5.54596872e+00 -2.06452651e+00j   1.48937818e+00 +3.32670400e-01j
  -4.46263235e+00 +2.94091108e-01j   6.26548010e+00 -2.73158180e+00j
   5.09632785e+00 +5.40726680e-01j  -7.60927167e-01 -2.01652278e+00j
   2.36276649e+00 -3.47672458e+00j   5.75502171e+00 +3.73107932e+00j
  -1.69759488e+00 -4.80652931e+00j   1.53317590e+00 -3.12030836e+00j
  -2.00710284e+00 +5.65512505e+00j   1.77828802e+00 -1.53797317e+00j
   3.47243095e+00 -7.15322268e+00j   7.48467881e-01 +8.11657099e-01j
   4.44514272e-01 -4.78837943e-01j   4.28537159e+00 -4.61704948e+00j
  -6.15863923e-01 +2.37019892e+00j  -3.56799257e+00 -8.76233268e-01j
   8.79629762e+00 -1.61800904e+00j   1.88656134e+00 +1.87760811e+00j
   1.90360808e-02 -9.46969941e-01j   4.45351752e+00 +3.69556646e+00j
   1.23506183e+00 -4.02728643e-01j   7.55720355e-01 -6.29721631e+00j
   3.44971069e+00 +2.25886964e+00j  -7.74342699e-01 +1.97155182e+00j
   1.19407661e+00 +1.44506825e+07j   1.86300940e+00 +6.12297237e-01j
  -5.75498450e-01 +4.06493179e+00j   3.75134099e+00 -4.74717309e+00j
   3.15243658e+00 +3.50781866e+00j  -2.65949595e+00 +4.47830713e-01j
   5.04967729e+00 -3.82427556e+00j   3.15250042e+00 +5.28945903e+00j]
ce tableau est stocker via scipy.fft.fft(data)

je sais en faire un spectre sonore mais je ne comprend pas comment analyser pas a pas (dans le temps) la variation des fréquences sonore.

Merci pour vos lumières