def beatract(dir_name, file_name=-1, save_dir=-1):
'''
at given dir_name/file_name extract beat and save it to txt file at save to.
Args:
Return:
Raise:
nothing.
'''
dest_file = to_wav(dir_name, dir_name, file_name)
# if want to extract some given length, give load to duration value.
audio_list, sampling_rate = lb.load(dest_file, offset=0.0)
print "file opend..."
music = lb.cqt(audio_list, sr=sampling_rate, fmin=lb.note_to_hz('C1'), n_bins=240, \
bins_per_octave=12*4)
print "file CQT finished..."
threshold = get_threshold(music)
_, r_harmonic = parse_noise(music, threshold)
print "file CQT harmonics extracted..."
note = stage_note(r_harmonic)
_, note_list, icoef_table, _ = bt2.tie_note(note, 8)
weights = bt2.weightract(r_harmonic, note, note_list, icoef_table)
save_to(save_dir, file_name.split(".")[0] + ".txt", weights)
print "finished extract file..."
'''
def beatract(dir_name, file_name=-1, save_dir=-1, addable_option="-n", \
specific=4, threshold_length=8, show_graph=-1):
'''
at given dir_name/file_name extract beat and save it to txt file at save to.
Args:
Return:
Raise:
nothing.
'''
# if file_name is default value, check all file in directory.
if file_name == -1:
file_names = os.listdir(dir_name)
else:
file_names = [file_name]
# if save_dir is default value, save_dir is in source directory.
if save_dir == -1:
save_dir = dir_name
# now is now beat extracting number.
now = 0
for file_name in file_names:
now += 1
print "Strat extracting " + file_name + "... Now " + str(
now) + " / " + str(len(file_names))
dest_file = to_wav(dir_name, dir_name, file_name, addable_option)
# if want to extract some given length, give load to duration value.
audio_list, sampling_rate = lb.load(dest_file, offset=0.0)
print "file opend..."
music = lb.cqt(audio_list, sr=sampling_rate, fmin=lb.note_to_hz('C1'), n_bins=60*specific, \
bins_per_octave=12*specific)
print "file CQT finished..."
threshold = get_threshold(music)
_, r_harmonic = parse_noise(music, threshold)
print "file CQT harmonics extracted..."
note = stage_note(r_harmonic)
_, note_list, icoef_table, _ = bt2.tie_note(note, threshold_length)
weights = bt2.weightract(r_harmonic, note, note_list, icoef_table)
save_to(save_dir, file_name.split(".")[0] + ".txt", weights)
print "finished extract file..."
if show_graph != -1:
plt.figure()
plt.plot(weights)
plt.show()
def beatract(dir_name, file_name=-1, save_dir=-1, addable_option="-n", \
specific=4, threshold_length=8, show_graph=-1, save_graph=-1, debugmode=-1, \
time_variation=0.5):
'''
at given dir_name/file_name extract beat and save it to txt file at save to.
Args:
Return:
Raise:
nothing.
'''
# if file_name is default value, check all file in directory.
if file_name == -1:
file_names = os.listdir(dir_name)
else:
file_names = [file_name]
# if save_dir is default value, save_dir is in source directory.
if save_dir == -1:
save_dir = dir_name
# now is now beat extracting number.
now = 0
for file_name in file_names:
now += 1
if debugmode != -1:
# if debugmode on, write debugging message to console.
print "Strat extracting " + file_name + "... Now " + str(now) + " / "+ \
str(len(file_names))
dest_file = to_wav(dir_name, dir_name, file_name, addable_option)
# if want to extract some given length, give load to duration value.
audio_list, sampling_rate = lb.load(dest_file, offset=0.0)
if debugmode != -1:
# if debugmode on, write debugging message to console.
print "file opend..." + "... Now " + str(now) + " / "+ str(len(file_names))
music = lb.cqt(audio_list, sr=sampling_rate, fmin=lb.note_to_hz('C1'), n_bins=60*specific, \
bins_per_octave=12*specific)
if debugmode != -1:
# if debugmode on, write debugging message to console.
print "file CQT finished..." + "... Now " + str(now) + " / "+ str(len(file_names))
threshold = get_threshold(music)
_, r_harmonic = parse_noise(music, threshold)
if debugmode != -1:
# if debugmode on, write debugging message to console.
print "file CQT harmonics extracted..." + "... Now " + str(now) + " / " + \
str(len(file_names))
note = stage_note(r_harmonic)
_, note_list, icoef_table, _ = bt2.tie_note(note, threshold_length, debug_mode=1)
weights = bt2.weightract(r_harmonic, note, note_list, icoef_table)
# Set Time variation for input values.
real_weights = bt2.set_time_variation(weights, \
get_music_time(sampling_rate, len(audio_list)), sampling_rate, \
time_variation=time_variation)
save_to(save_dir, file_name.split(".")[0] + ".txt", real_weights)
if debugmode != -1:
print "finished extract file..." + "... Now " + str(now) + " / "+ str(len(file_names))
if show_graph != -1:
# if show graph is on...
plt.figure()
plt.plot(real_weights)
plt.show()
if save_graph != -1:
# if save graph is on...
plt.figure()
plt.plot(real_weights)
plt.savefig(str(dir_name)+"/"+str(file_name.split(".")[0] + ".png"))
def beatract(dir_name, file_name=-1, save_dir=-1, addable_option="-n", \
specific=4, threshold_length=8, show_graph=-1, save_graph=-1, debugmode=-1, \
time_variation=0.5, time_warping=60, inner_debug=-1):
'''
at given dir_name/file_name extract beat and save it to txt file at save to.
Args:
Return:
Raise:
nothing.
'''
# if file_name is default value, check all file in directory.
if file_name == -1:
file_names = os.listdir(dir_name)
else:
file_names = [file_name]
# if save_dir is default value, save_dir is in source directory.
if save_dir == -1:
save_dir = dir_name
# now is now beat extracting number.
now = 0
for file_name in file_names:
now += 1
if debugmode != -1:
# if debugmode on, write debugging message to console.
print("Strat extracting " + file_name + "... Now " + str(now) + " / "+ \
str(len(file_names)))
# y, sr for calculate seconds.
y, sr = lb.load(dir_name + '/' + file_name)
second = len(y) / sr
time = 0
real_output = []
while second > 0:
if second > time_warping:
#Start from times * 60 and with 60 seconds.
addable_option = addable_option + " -ss " + str(time_warping * time) \
+ " -t " + str(time_warping)
#to Wav file with same name, so we can get just one file.
dest_file = to_wav(dir_name, dir_name, file_name,
addable_option)
time += 1
second -= time_warping
else:
#Start from times * 60 and with remain seconds.
addable_option = addable_option + " -ss " + str(time_warping * time) \
+ " -t " + str(second)
#to Wav file with same name, so we can get just one file.
dest_file = to_wav(dir_name, dir_name, file_name,
addable_option)
second = 0
time += 1
# if want to extract some given length, give load to duration value.
audio_list, sampling_rate = lb.load(dest_file, offset=0.0)
if debugmode != -1:
# if debugmode on, write debugging message to console.
print("file opend..." + "... Now " + str(now) + " / " + str(len(file_names))\
+ " " + file_name)
music = lb.cqt(audio_list, sr=sampling_rate, fmin=lb.note_to_hz('C1'), \
n_bins=60*specific, bins_per_octave=12*specific)
if debugmode != -1:
# if debugmode on, write debugging message to console.
print("file CQT finished..." + "... Now " + str(now) + " / " + \
str(len(file_names))\
+ " " + file_name)
threshold = get_threshold(music)
_, r_harmonic = parse_noise(music, threshold)
if debugmode != -1:
# if debugmode on, write debugging message to console.
print("file CQT harmonics extracted..." + "... Now " + str(now) + " / " + \
str(len(file_names))\
+ " " + file_name)
note = stage_note(r_harmonic)
if debugmode != -1:
# if debugmode on, write debugging message to console.
print("file tie_note..." + "... Now " + str(now) + " / " + \
str(len(file_names))\
+ " " + file_name)
_, note_list, icoef_table, _ = bt2.tie_note(note, threshold_length, \
debug_mode=inner_debug)
if debugmode != -1:
# if debugmode on, write debugging message to console.
print("file weightract..." + "... Now " + str(now) + " / " + \
str(len(file_names))\
+ " " + file_name)
weights = bt2.weightract(r_harmonic, note, note_list, icoef_table, \
debug_mode=inner_debug)
# Set Time variation for input values.
real_weights = bt2.set_time_variation(weights, \
get_music_time(sampling_rate, len(audio_list)), sampling_rate, \
time_variation=time_variation)
real_output += real_weights
save_to(save_dir, file_name.split(".")[0] + ".txt", real_output)
if debugmode != -1:
print("finished extract file..." + "... Now " + str(now) + " / "+ str(len(file_names))\
+ " " + file_name)
if show_graph != -1:
# if show graph is on...
plt.figure()
plt.plot(real_output)
plt.show()
if save_graph != -1:
# if save graph is on...
plt.figure()
plt.plot(real_output)
plt.savefig(
str(dir_name) + "/" + str(file_name.split(".")[0] + ".png"))