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bug fixed. #15

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bug fixed. #15

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9 changes: 6 additions & 3 deletions generator.py
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Original file line number Diff line number Diff line change
Expand Up @@ -31,8 +31,11 @@
''' Helper function to sample an index from a probability array '''
def __sample(a, temperature=1.0):
a = np.log(a) / temperature
a = np.exp(a) / np.sum(np.exp(a))
return np.argmax(np.random.multinomial(1, a, 1))
# a = np.exp(a) / np.sum(np.exp(a))
# return np.argmax(np.random.multinomial(1, a, 1))
dist = np.exp(a)/np.sum(np.exp(a))
choices = range(len(a))
return np.random.choice(choices, p=dist)

''' Helper function to generate a predicted value from a given matrix '''
def __predict(model, x, indices_val, diversity):
Expand Down Expand Up @@ -180,7 +183,7 @@ def main(args):
N_epochs = 128 # default

# i/o settings
data_fn = 'midi/' + 'original_metheny.mid' # 'And Then I Knew' by Pat Metheny
data_fn = 'midi/' + 'original_metheny.mid' # 'And Then I Knew' by Pat Metheny
out_fn = 'midi/' 'deepjazz_on_metheny...' + str(N_epochs)
if (N_epochs == 1): out_fn += '_epoch.midi'
else: out_fn += '_epochs.midi'
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2 changes: 1 addition & 1 deletion preprocess.py
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Expand Up @@ -34,7 +34,7 @@ def __parse_midi(data_fn):
# Change key signature to adhere to comp_stream (1 sharp, mode = major).
# Also add Electric Guitar.
melody_voice.insert(0, instrument.ElectricGuitar())
melody_voice.insert(0, key.KeySignature(sharps=1, mode='major'))
melody_voice.insert(0, key.KeySignature(sharps=1))

# The accompaniment parts. Take only the best subset of parts from
# the original data. Maybe add more parts, hand-add valid instruments.
Expand Down