def getclusters(basedir,ext='.h5') :
print 'inside clusters'
features = []
cfeatures = []
decadecount = defaultdict(int)
deccount = defaultdict(int)
i=0
for root, dirs, files in os.walk(basedir):
files = glob.glob(os.path.join(root,'*'+ext))
for f in files:
h5 = hdf5_getters.open_h5_file_read(f)
year = hdf5_getters.get_year(h5)
if year == 0:
h5.close()
continue
bins = getbin(year)
# decade.append(bin)
# dec = (year/10)*10
# decadecount[dec] += 1
# if dec < 1960:
# h5.close()
# continue
deccount[bin] += 1
if decadecount[bins] > cap:
flag = checkforcompletion(decadecount)
h5.close()
if flag:
for dec in decadecount.keys():
print 'Dec : ' + str(dec) + ' Count : ' + str(decadecount[dec])
return features,cfeatures
continue
i += 1
print i
try:
bttimbre = bt.get_bttimbre(h5)
btT = bttimbre.T
for x in btT:
features.append(x)
decadecount[bins] += 1
btchroma = bt.get_btchromas(h5)
btc = btchroma.T
for x in btc:
cfeatures.append(x)
decadecount[bins] += 1
except:
h5.close()
continue
h5.close()
for dec in deccount.keys():
print 'Dec : ' + str(dec) + ' Count : ' + str(decadecount[dec])
features = array(features)
cfeatures = array(cfeatures)
return features,cfeatures
def beat_aligned_chroma(song_id, file_name) :
btchromas = beat_aligned_feats.get_btchromas(file_name)
if btchromas is None :
return [], None
btchromas = btchromas.T
rows = []
for i in range(btchromas.shape[0]) :
vals = {'song_id': song_id, 'beat_number': i}
for j in range(12) :
vals[pitch_schema[j]] = btchromas[i][j]
rows.append(vals)
return rows, btchromas
# sanity checks
if not os.path.isfile(songfile):
print 'ERROR: %s does not exist.' % songfile
sys.exit(0)
# tbm path, import stuff
import beat_aligned_feats as BAF
import pylab as P
import warnings
warnings.filterwarnings('ignore', category=DeprecationWarning)
# get chroma
btchroma = BAF.get_btchromas_loudness(songfile)
btchroma_db = np.log10(BAF.get_btchromas_loudness(songfile)) * 20.
btchroma_normal = BAF.get_btchromas(songfile)
# get landmarks
landmarks = get_landmarks(btchroma, decay=decay)
landmarks_normal = get_landmarks(btchroma_normal, decay=decay)
# plot
pargs = {'aspect': 'auto',
'cmap': P.cm.gray_r,
'interpolation': 'nearest',
'origin': 'lower'}
P.subplot(4, 1, 1)
P.imshow(btchroma, **pargs)
P.subplot(4, 1, 2)
P.imshow(landmarks_normal, **pargs)
def buildfeatures(basedir,cluster,ccluster,ext='.h5'):
global cap
i = 0
features = []
decade = []
decadecount = defaultdict(int)
for root, dirs, files in os.walk(basedir):
files = glob.glob(os.path.join(root,'*'+ext))
for f in files:
h5 = hdf5_getters.open_h5_file_read(f)
year = hdf5_getters.get_year(h5)
if year == 0:
h5.close()
continue
bins = getbin(year)
# dec = (year/10)*10
# if dec < 1960:
# h5.close()
# continue
if decadecount[bins] > cap:
flag = checkforcompletion(decadecount)
h5.close()
if flag:
return features,decade
continue
i += 1
print i
clustercount = {}
cclustercount = {}
for x in range(50):
clustercount[x] = 0
cclustercount[x] = 0
feature = []
cfeature =[]
try:
bttimbre = bt.get_bttimbre(h5)
btT = bttimbre.T
for x in btT:
label = kmeans.predict(x)
clustercount[label[0]] += 1
for cl in clustercount.keys():
feature.append(clustercount[cl])
btchroma = bt.get_btchromas(h5)
btc = btchroma.T
for y in btc :
clabel = ckmeans.predict(y)
cclustercount[clabel[0]] +=1
for cl in cclustercount.keys():
feature.append(cclustercount[cl])
features.append(feature)
decade.append(bins)
decadecount[bins] += 1
except:
h5.close()
continue
h5.close()
print len(features)
print len(decade)
return features,decade
# sanity checks
if not os.path.isfile(songfile):
print 'ERROR: %s does not exist.' % songfile
sys.exit(0)
# tbm path, import stuff
import beat_aligned_feats as BAF
import pylab as P
import warnings
warnings.filterwarnings('ignore', category=DeprecationWarning)
# get chroma
btchroma = BAF.get_btchromas_loudness(songfile)
btchroma_db = np.log10(BAF.get_btchromas_loudness(songfile)) * 20.
btchroma_normal = BAF.get_btchromas(songfile)
# get landmarks
landmarks = get_landmarks(btchroma, decay=decay)
landmarks_normal = get_landmarks(btchroma_normal, decay=decay)
# plot
pargs = {
'aspect': 'auto',
'cmap': P.cm.gray_r,
'interpolation': 'nearest',
'origin': 'lower'
}
P.subplot(4, 1, 1)
P.imshow(btchroma, **pargs)
P.subplot(4, 1, 2)
def get_all_titles(basedir,ext='.h5') :
global errorcount
global count
global cap
global truecount
features = []
decade = []
decadecount = defaultdict(int)
timbre = None
i = 0
for root, dirs, files in os.walk(basedir):
files = glob.glob(os.path.join(root,'*'+ext))
for f in files:
feature = []
try:
h5 = hdf5_getters.open_h5_file_read(f)
except HDF5ExtError as e:
errorcount += 1
print "Unexpected error:", sys.exc_info()[0]
print traceback.format_exc()
continue
year = hdf5_getters.get_year(h5)
print i
i+=1
if year == 0:
h5.close()
continue
label = getbin(year)
#label = (year/10)*10
truecount[label] += 1
if decadecount[label] > cap:
flag = checkforcompletion(decadecount)
h5.close()
if flag:
for dec in decadecount.keys():
print 'Decade : ' + str(dec) + ' Count : ' + str(decadecount[dec])
return features,decade
continue
# dec = (year/10)*10
# if dec < 1960:
# h5.close()
# continue
# try:
#
# bttimbre = bt.get_bttimbre(h5)
# timbres = bttimbre.argmax(axis = 0) + 1 # Is a vector of timbre values sutiable for training an HMM
# for timbre in timbres:
# timbredict[timbre] += 1
# for i in range(1,13):
# feature.append(timbredict[i])
# except:
# h5.close()
# continue
# clustercount = {}
# for x in range(12):
# clustercount[x] = 0
# try:
# bttimbre = bt.get_bttimbre(h5)
# btT = bttimbre.T
# for x in btT:
# timbre = x.argmax(axis = 0)
# clustercount[timbre]+=1
# except:
# h5.close()
# continue
# for y in range(12):
# features.append(clustercount[y])
try:
btchromas = bt.get_btchromas(h5)
for chroma in btchromas:
feature.append(mean(chroma))
covmat = get_covariance(btchromas)
feature.extend(covmat)
bttimbre = bt.get_bttimbre(h5)
for timbre in bttimbre:
feature.append(mean(timbre))
covmat = get_covariance(bttimbre)
feature.extend(covmat)
# btT = bttimbre.T
# for x in btT:
# timbre = x.argmax(axis = 0)
# clustercount[timbre]+=1
# for y in range(12):
# feature.append(clustercount[y])
except:
errorcount += 1
h5.close()
continue
loudness = hdf5_getters.get_loudness(h5)
feature.append(loudness)
duration = hdf5_getters.get_duration(h5)
feature.append(duration)
features.append(feature)
decade.append(label)
decadecount[label] += 1
count += 1
h5.close()
# title = hdf5_getters.get_title(h5)
# segstarts = hdf5_getters.get_segments_start(h5)
# segstarts = np.array(segstarts).flatten()
# btstarts = hdf5_getters.get_beats_start(h5)
# btstarts = np.array(btstarts).flatten()
for dec in decadecount.keys():
print 'Decade : ' + str(dec) + ' Count : ' + str(decadecount[dec])
return features,decade
# Load in list of files which were aligned correctly, and the start/end times of the good alignment
files, start_times, end_times = load_results(tsv_path)
for filename, start_time, end_time in zip(files, start_times, end_times):
# Load in MSD hdf5 file
h5 = hdf5_getters.open_h5_file_read(to_h5_path(filename))
# Load in beat times from MSD
beats = hdf5_getters.get_beats_start(h5)
# Some files have no EN analysis
if beats.size == 0:
continue
# Get indices which fall within the range of correct alignment
time_mask = np.logical_and(beats > start_time, beats < end_time)
beats = beats[time_mask]
# and beat-synchronous feature matrices, within the time range of correct alignment
chroma = beat_aligned_feats.get_btchromas(h5)[:, time_mask]
timbre = beat_aligned_feats.get_bttimbre(h5)[:, time_mask]
loudness = beat_aligned_feats.get_btloudnessmax(h5)[:, time_mask]
h5.close()
# Stack it
msd_features = np.vstack([chroma, timbre, loudness])
if np.isnan(msd_features).any():
print filename
continue
# Load in pretty midi object
pm = pretty_midi.PrettyMIDI(midi.read_midifile(to_midi_path(filename)))
# Construct piano roll, aligned to the msd beat times
piano_roll = pm.get_piano_roll(times=beats)
# Ignore notes below 36 and above 84
piano_roll = piano_roll[36:84, :]
# Write out