batch_ipt = []
batch_tgt = []
for step in range(timesteps - channels - 1):
batch_ipt.append(signals[i, step:step + channels])
batch_tgt.append([signals[i, step + channels + 1]])
batch_ipt = np.array(batch_ipt)
batch_tgt = np.array(batch_tgt)
batch_ipt = np.expand_dims(batch_ipt, 0)
batch_tgt = np.expand_dims(batch_tgt, 0)
batch_loss = model.train_on_batch(batch_ipt, batch_tgt) ### TRAINNING
loss.append([time.time() - initial_time, batch_loss])
print('LOSS:', loss[-1][1], 'Time:', loss[-1][0])
save_model(model, path, 'model')
np.savetxt(path + 'loss.csv', np.array(loss), fmt='%.18e', delimiter=',')
P_model.set_weights(model.get_weights())
save_model(P_model, path, 'P_model')
for i in range(samples):
seed = np.array(signals[i][0:channels])
save_wav(max_amp * seed, name=path + 'seed_' + names[i] + '.wav')
seed = np.expand_dims(seed, 0)
seed = np.expand_dims(seed, 0)
pred_wave = np.zeros(timesteps)
for j in range(channels, timesteps):
predicted = P_model.predict(seed)
pred_wave[j] = predicted[0, 0, 0]
seed = np.roll(seed, -1)
seed[0, 0, channels - 1] = predicted[0, 0, 0]
save_wav(max_amp * pred_wave, name=path + 'wave_' + names[i] + '.wav')
plt.axis([0, L, -1.1 * amplitude, 1.1 * amplitude])
plt.axvline(L * pickup_position)
plt.savefig(path + 'plots/' + str(ctr) + '.png')
plt.close()
ctr += 1
for j in range(1, N):
print('step ', ctr,' of ', N)
for i in range(1, M):
y[i] = 2 * y_1[i] - y_2[i] + C**2 * (y_1[i+1] - 2*y_1[i] + y_1[i-1])
y[0] = y[0] * 0.5
y[M] = y[M] * 0.5
y = y * sustain
w.append(y[pickup])
y_2[:] = y_1
y_1[:] = y
if plot:
loop = 0
plt.plot(x, y, 'k')
plt.axis([0, L, -1.1 * amplitude, 1.1 * amplitude])
plt.axvline(L * pickup_position)
plt.savefig(path + 'plots/' + str(ctr) + '.png')
plt.close()
ctr += 1
w = np.array(w) * 4000000
print('time =', time.time() - initial_time)
save_wav(
w,
path + str(frequency) +
'_Pluck=' + str(pluck_position) +
'_Pick=' + str(pickup_position) + '.wav'
)
model.add(K.layers.Dense(tgt.shape[1], activation=act, input_shape=(ipt.shape[1],)))
else:
model.add(K.layers.Dense(hlayers[0], activation=act, input_shape=(ipt.shape[1],)))
# model.add(K.layers.Dropout(0.01))
for hn in hlayers[1:]:
model.add(K.layers.Dense(hn, activation=act))
# model.add(K.layers.Dropout(0.01))
model.add(K.layers.Dense(tgt.shape[1], activation=act))
# model.add(K.layers.Dropout(0.01))
model.compile(loss='mean_squared_error', optimizer=opt)
tb = K.callbacks.TensorBoard(logpath)
K.utils.print_summary(model)
history = model.fit(ipt, tgt, batch_size=batch, epochs=epchs, verbose=0, callbacks=[tb], shuffle=True)
save_model(model, logpath, 'model')
return model
path = './Log/'
m = train([75,75,75], path, batch = 100, epchs = 10)
for i, input in enumerate(ipt):
input = np.expand_dims(input, 0)
pred = m.predict(input)
save_wav(pred * max_amp, name = path + 'wave-' + labels[i] + '.wav')
# %USERPROFILE%/.keras/keras.json
model = K.models.Model(input, output)
K.utils.print_summary(model)
model.compile(loss='mean_squared_error', optimizer=opt)
tb = K.callbacks.TensorBoard(path)
history = model.fit(ipt,
tgt,
batch_size=tgt.shape[0],
epochs=epcs,
verbose=1,
callbacks=[tb],
validation_split=0.0,
shuffle=True)
save_model(model, path, 'model')
predictions = model.predict(xipt) * M
# predictions = np.power(predictions, 3)
N = predictions.shape[1] // 2
# d = (- np.log(0.1)) / original_len
# X = np.arange(0, original_len, 1)
# D = np.exp(-d * X)
for i, p in enumerate(predictions):
real = p[:N]
imag = p[N:]
w = irfft(real + imag * 1j, original_len) / 2 * original_len
# w = np.multiply(D, w)
save_wav(w, path + xnames[i] + '.wav')
net = K.models.load_model('03_train/' + piece_name + '/#model.h5',
{'scaled_tanh': scaled_tanh})
K = np.genfromtxt("01_tuning_stretch/" + piece_name + "/coefs.csv")
st = time.time() # <> <> <> <> <> <> <> <> <> <> <> <> <> <> <> <> <> <> #
key = int(key_name)
f0 = np.power(
2, (key - 49) / 12) * 440 * (K[0] * key**K[1] * key**2 + K[2] * key + K[3])
key = (key - 1) / 87
ipt = np.array([[key, p] for p in np.linspace(0, 1, partials)])
[F, A, D] = net.predict(ipt)
F = (np.ndarray.flatten(F) * (Mf - mf) + mf) * P * f0
A = np.ndarray.flatten(A) * ((Ma - ma) + ma) * 5000
D = np.ndarray.flatten(D) * ((Md - md) + md)
# print(A.shape,D.shape,F.shape, P.shape)
w = np.zeros(n)
for i in range(partials):
# print('partial:', i)
ph = np.random.uniform(0, 2 * np.pi)
w += create_signal(n, fps, F[i], ph, A[i], D[i])
print(time.time() -
st) # <> <> <> <> <> <> <> <> <> <> <> <> <> <> <> <> <> <> #
save_wav(w, key_name + ".wav")
steps = a.shape[0]
X = np.linspace(0 , 1 , steps)
Y = 3 * X ** 2 - 2 * X** 3
return a * (1 - Y) + b * Y
extended_ipt = []
extended_names = []
for i in np.arange(1, 5 + 0.1, 0.5):
for j in np.arange(1, 5 + 0.1, 0.5):
for k in np.arange(1, 4 + 0.1, 0.5):
name = str(i) + '_' + str(j) + '_' + str(k)
extended_names.append(name)
extended_ipt.append([i, j, k])
extended_ipt = np.array(extended_ipt, dt)
extended_ipt, maxs_ipt, mins_ipt = normalize_cols(extended_ipt)
predictions = model.predict(extended_ipt)
if overlap == 0:
predictions = np.reshape(predictions, (extended_ipt.shape[0],-1))
for i, w in enumerate(predictions):
save_wav(w * amp, path + extended_names[i] + '.wav')
else:
for i, p in enumerate(predictions):
w = p[0]
for j in range(1, timesteps):
x = p[j]
b = blend(w[-overlap:], x[:overlap])
w = np.hstack([w[:-overlap], b ,x[overlap:]])
save_wav(w[:-overlap] * amp, path + extended_names[i] + '.wav')
# names = []
# for filename in filenames:
# names.append(filename.replace('.wav', ''))
# names = np.sort(np.array(names, dtype=np.int)).astype(np.str)
names = []
for i in range(1, 88 + 1):
names.append(str(i))
A = np.genfromtxt('03_train/' + piece_name + '/amps_over_max_amp.csv',
delimiter=',')
D = np.genfromtxt('03_train/' + piece_name + '/decays.csv', delimiter=',')
I = np.genfromtxt('03_train/' + piece_name + '/Mfreqs_over_Tfreqs.csv',
delimiter=',')
K = np.genfromtxt("01_tuning_stretch/" + piece_name + "/coefs.csv")
for i, name in enumerate(names):
k = int(name)
print(name)
w = np.zeros(n)
f0 = np.power(
2, (k - 49) / 12) * 440 * (K[0] * k**K[1] * k**2 + K[2] * k + K[3])
for j in range(partials):
p = np.random.uniform(0, 2 * np.pi)
f = f0 * (j + 1) * I[i, j]
d = D[i, j]
a = A[i, j] * 5000
w += create_signal(n, fps, f, p, a, d)
save_wav(w, save_path + name + '.wav')