def findGoodSong(self):
"""
"""
for i in range(self.STARTFILE, len(self.wav_index)):
FILE = (self.FILEDIR + self.FILES[i])
p, freqs, t, im = sf.spec(FILE)
p = p
sf.tellme('Select Song')
plt.waitforbuttonpress()
sf.tellme('Select Song')
happy = False
Proceed = False
while not happy:
happy = plt.waitforbuttonpress()
if not happy:
tim = np.asarray(plt.ginput(n=0, timeout=-1))
ind = np.logical_and(t > tim[0,0], t < tim[1,0])
SongTime = mlab.find(ind)
# Generate syllable spectrogram
self.winFreq = freqs > self.MINFREQ
self.winFreq = mlab.find(self.winFreq)
P = p[:,SongTime]
P = P[self.winFreq,:]
plt.close(1)
self.FIND_SONG = P.mean(0)
self.THRESHOLD = min(self.FIND_SONG) * 10.0
Proceed = True
break
if happy:
plt.close()
if Proceed:
break
def cutSyllables(self, SYLLABLES, DISPLAYSYLL=False, DISPLAYSONG=False):
"""
"""
if len(self.FILES) < self.MAXFILE + 1:
ENDFILE = len(self.FILES)
elif len(self.FILES) >= self.MAXFILE + 1:
ENDFILE = self.MAXFILE
song = 0
fil = self.STARTFILE
while fil < ENDFILE:
FILE = (self.FILEDIR + self.FILES[fil])
print 'processing file: ', fil
## Spectrogram ##
p, freqs, t, im = sf.spec(FILE)
p = p * 0.9
SongP, SongTime = sf.FindSong(p, self.FIND_SONG, t, self.winFreq,
self.THRESHOLD)
if SongP is False:
plt.close(1)
if len(self.FILES) < self.MAXFILE + 1:
ENDFILE = len(self.FILES)
elif len(self.FILES) >= self.MAXFILE + 1 and ENDFILE < len(
self.FILES):
ENDFILE = ENDFILE + 1
elif ENDFILE >= len(self.FILES):
ENDFILE = ENDFILE
print 'Skipped because there was no song'
pass
############# Find Syllables################
elif SongP.any():
mean_freq = np.zeros((len(SongTime),1))
for j in range(0,len(SongTime)):
fr = (sum(freqs[self.winFreq] * np.power(SongP[:, j], 2)) /
sum(np.power(SongP[:, j], 2)))
mean_freq[j] = fr
syllFound = sf.runs(SongP.mean(0) > self.THRESHOLD)
FOUND = syllFound[0].any()
if FOUND:
for syll in range(0,len(syllFound[0])):
time = np.arange(syllFound[0][syll],
syllFound[1][syll])
if len(time) > 200:
plt.close(1)
plt.close(2)
print 'Skipped syllable because it was too long'
pass
elif len(time) <= 200:
P = SongP[:,time]
ent, mean_freq, duration = sf.measure(P,
time,
freqs,
self.winFreq,
t)
if syll <= SYLLABLES - 1:
self.syllables[syll]['entropy'][song] = ent
self.syllables[syll]['freq'][song] = mean_freq
self.syllables[syll]['duration'][song] = (
duration)
# Generate syllable spectrogram
if DISPLAYSYLL == 1:
Z = 10*np.log10(abs(P))
plt.figure()
plt.imshow(Z,origin='lower', aspect='auto')
plt.hold(True)
plt.show(bloc=False)
plt.tight_layout()
plt.close(3)
plt.close(2)
plt.close(1)
song += 1
if not FOUND:
plt.close(1)
plt.close(2)
if len(self.FILES) < self.MAXFILE + 1:
ENDFILE = len(self.FILES)
elif (len(self.FILES) >= self.MAXFILE + 1 and
ENDFILE < len(self.FILES)):
ENDFILE = ENDFILE + 1
elif ENDFILE >= len(self.FILES):
ENDFILE = ENDFILE
print 'Skipped because there were no syllables \
extracted'
fil +=1
