def russianHMM(n_trials,characters,alphabet): model = hmm.hmmTrain(characters,2,tol=.1,maxiter=100) obs = hmm.transformObservations(alphabet,characters) logProb = hmm.score(model,obs) for i in xrange(n_trials-1): print(i) temp_model = hmm.hmmTrain(characters,2,tol=.1,maxiter=100) temp_logProb = hmm.score(temp_model,obs) if temp_logProb > logProb: model = temp_model logProb = temp_logProb return model
for i in range(0, 3):
midi_scratch_file.addTrackName(i, 0, "Pop Flute {0}".format(i))
midi_scratch_file.addTempo(i, 0, 240)
time = 0
while time < song_length:
duration = random.uniform(duration_min, duration_max)
pitch = random.randint(pitch_lowbound, pitch_upbound)
midi_scratch_file.addNote(i, i, pitch, time, duration, volume)
# print "D: %d, p: %d, t: %d" % (duration, pitch, time)
time += duration
binfile = open(relative_file_path, 'w')
midi_scratch_file.writeFile(binfile)
binfile.close()
# And write it to disk.
# temp_file = tempfile.NamedTemporaryFile()
# midi_scratch_file.writeFile(temp_file)
# Next, score the file using a 2-depth HMM
score = hmm.score(relative_file_path, hmm_depth=3, obs=song_length)
new_best_score = max(best_score, score)
if new_best_score > best_score:
best_score = new_best_score
shutil.copyfile(relative_file_path, "attempts/score_{0}.mid".format(best_score))
print "Got Score: %d (tries %d, best score: %d)" % (score, tries, best_score)
shutil.copyfile(relative_file_path, "attempts/best_%d.mid" % (score,))
print "Finished!"
volume = 100
relative_file_path = "data/testing_songs/Random Songs"
for index in range(0, count_of_songs):
song_length = random.randint(25, 80)
file_name = str(index) + ".mid";
time = 0;
midi_scratch_file = MIDIFile(3)
for i in range(0,3):
midi_scratch_file.addTrackName(i, 0, "Pop Flute {0}".format(i))
midi_scratch_file.addTempo(i, 0, 240)
time = 0;
while time < song_length:
duration = random.uniform(duration_min, duration_max)
pitch = random.randint(pitch_lowbound, pitch_upbound)
midi_scratch_file.addNote(i, i, pitch, time, duration, volume)
time += duration
file_full_path = os.path.join(relative_file_path, file_name)
binfile = open(file_full_path, 'w')
midi_scratch_file.writeFile(binfile)
binfile.close()
score = hmm.score(file_full_path, hmm_depth=3, obs=song_length)
print 'The socre of %s is %d' % (file_name, score)
print 'Finished!'
